Carson Nitro Buggy CNB 204016 Instruction Manual
Instruction Manual Page 2 - 29
Betriebsanleitung Seite 30 - 57
CARSON Nitro Buggy CNB 204016
2
GB
CARSON Nitro Buggy CNB 204016
Dear Customer
We congratulate you for buying the CARSON RC model car,
which is designed using state of the art technology.
According to our policy of steady development and improvement of our products we reserve the right to make changes in
specifications concerning equipment, material and design of
this product at any time without notice.
Specifications or designs of the actual product may vary from
those shown in this manual or on the box.
The manual forms part of this product. Should you ignore the
operating and safety instructions, the warranty will be void.
Keep this guide for future reference.
Limited Warranty
This product is warranted by CARSON against manufacturing
defects in materials and workmanship under normal use for 24
months from the date of purchase from authorised franchisees
and dealers. In the event of a product defect during the warranty period, return the product along with your receipt as proof
of purchase to any CARSON store. CARSON will, at its option,
unless otherwise provided by law:
(a) Correct the defect by repairing the product without charging
for parts and labour
(b) replace the product with one of the same or similar design;
or
(c) refund the purchase price.
All replaced parts and products, and products on which a
refund is made, become the property of CARSON. New or
reconditioned parts and products may be used in the performance of warranty services. Repaired or replaced parts and
products are warranted for the remainder of the original
warranty period. You will be charged for repair or replacement
of the product made after the expiration of the warranty period.
The Warranty does not cover:
• damage or failure caused by or attributable to acts of God,
abuse, accident, misuse, improper or abnormal usage,
failure to follow instructions, improper installation or maintenance, alteration, lightning or other incidence of excess
voltage or current;
• damage caused by losing control of your car;
• any repairs other than those provided by a CARSON
Authorised Service Facility;
• consumables such as fuses or batteries;
• cosmetic damage;
• transportation, shipping or insurance costs; or
• costs of product removal, installation, set-up service
adjustment or reinstallation
This warranty gives you specific legal rights and you may also
have other rights which may vary according to the country of
purchase.
Declaration of conformity
Dickie-Tamiya GmbH&Co KG hereby declares that this model
kit with radio, motor, battery and charger is in accordance with
the basic requirements of the following European directives:
98/37 EG and 89/336/EWG and other relevant regulations of
guideline 1999/5/EG (R&TTE).
The original declaration of conformity can be obtained from the
following address:
Dickie-Tamiya GmbH&Co. KG • Werkstraße l • D-90765 Fürth •
Germany
The meaning of the symbol on the product, packaging
or instructions:
Electronic devices are valuable products and should
not be disposed of with the household waste when
they reach the end of their running time! Help us to
protect the environment and respect our resources by handing
this appliance over at the relevant recycling points.
We wish you good luck and a lot of fun driving with your
CARSON model car
Before driving your new model carefully read these instructions!
3CARSON Nitro Buggy CNB 204016
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Contents
Preface ..................................................................................... 2
Included items ......................................................................... 3
Safety precautions .................................................................. 4
For your safety ......................................................................... 5
Introduction ............................................................................. 6
Additional items needed for starting the engine: ................... 6
Tools needed for the assembly ............................................... 8
Becoming familiar with your CARSON Nitro Buggy .............9
Chassis .................................................................................... 9
a. Preparing to run your model ...........................................11
b. Range checking the road control system ....................... 13
c. Double-check the steering and throttle/brake
controls ............................................................................ 14
d. Wetting the air filter ......................................................... 15
e. Force Motor 4.58 cm
3
...................................................... 16
f. Fueling and starting the Force nitro engine ....................17
g. Breaking the Force 28 nitro engine ................................. 19
h. Installing the body ........................................................... 21
i. Adjusting the brake linkage ............................................. 21
j. Adjusting the toe angle .................................................... 22
k. Adjusting the camber angle ............................................ 23
l. Adjusting the 2-speed transmission shift point .............. 23
m. Adjusting shock spring tension .......................................24
n. Adjusting shock dampening and replacement
shock springs ................................................................... 25
o. Adjusting the front and rear differentials ........................ 25
p. Maintaining your CNB ...................................................... 26
q. Troubleshooting guide ..................................................... 27
Assembly ............................................................................... 58
4.58 cm
3
Force nitro engine .................................................. 89
Spare parts ............................................................................ 92
EMS-System spare parts ...................................................... 98
Tuning parts ........................................................................... 99
Included items
Transmitter
Model
Starter
4
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CARSON Nitro Buggy CNB 204016
Safety Precautions
This model is not a toy!
• This radio controlled model is not a toy. Learning how to
control it correctly is a gradual process.
• Children under 14 years of age should be supervised by an
adult.
Driving a radio controlled car is a fascinating hobby. However, it
has to be practised with the necessary caution and respect.
A radio controlled model car can cause damage and injury and
the user is liable for any such incident.
Make sure that you have sufficient insurance cover when practising your hobby.
Only a well maintained model will function in a correct manner.
Only use approved spare parts and never improvise with any
unsuitable items.
It is the user’s responsibility to ensure that the model is functioning correctly and that all nuts, bolts and screws are properly
tightened.
Pay attention to the charge level indicator
lamps of your transmitter.
• Batteries for transmitter and receiver are well charged and of
the correct voltage.
• Always check the range of radio operation before starting
the car.
• Make sure that all servos respond correctly to the signals of
the transmitter.
• All operable parts are in good condition and you have tested
their operation.
• You have made sure that all screws are tightened.
• There is no other RC or similar transmitter nearby, which
could cause interference. Any further radio signal on the
same frequency can cause the loss of control for your
model. Always switch on the transmitter first to avoid any
uncontrolled reaction of the receiver to a foreign radio
impulse.
• Fully extend the transmitter antenna and make sure that
nobody in your environment controls a model with the same
frequency (number on the crystal) and that there is no
discernable interference. To end the operation switch off the
receiver first, then the transmitter.
• Keep your car away from high voltage cables or radio masts.
• Never use the model during lightning.
• Atmospheric disturbances can affect the signals of your
remote controlling transmitter.
• Do not use the model in wet areas. The electrical connection
of the model is not waterproof. Therefore do not drive while
it‘s raining, snowing, or in puddles or wet grass.
• Always avoid running radio control models in restricted,
confined or populated areas.
• Keep away from roads, highways, people and animals.
• Choose a sufficiently open and large area; it should be free
of obstacles.
• Do not drive, if you are overtired or your reactivity is impaired
in another way.
• Watch your model constantly and do not become distracted.
• The body shell should be correctly attached to the vehicle
before driving.
• Allow cooling time for the engine components before removing the body shell.
• Some parts (e.g. the motor and the muffler) become
extremely hot during operation and could cause serious
injury.
Pay attention to charge announcement of your transmitter.
• Ensure that the batteries for the radio and receiver are fully
charged and of the correct voltage. When the batteries are
running low you might loose control of your model.
• Never use fully loaded batteries and batteries which have
already run low, or batteries of a different capacity at the
same time.
• Never load batteries which are not rechargeable
If you do not use the model for a longer time you must remove
the rechargeable battery.
Safety Precautions and Operating
Guidelines
This radio control model vehicle must only be run on the approved model fuel. Always avoid running radio control models in
restricted, confined or populated areas. Keep away from roads,
highways, people and animals. Never run the model indoors.
Please ensure that you have read all the safety instructions and
operating procedures before driving the model.
The body shell should be correctly attached to the vehicle
before driving.
Allow cooling time for the exhaust and engine components
before removing the body shell. These parts become extremely
hot during operation and could cause serious injury.
Do not operate the model where noise may cause a nuisance to
others.
Ensure that the batteries for the radio and receiver are fully
charged and of the correct voltage.
Turn on the transmitter first, then the receiver. Reverse this
procedure when switching off. Check that the throttle, brakes
and trims are functioning correctly.
Make sure that no other person is operating on the same
frequency as your radio and that there is no discernable interference.
Always check that all the nuts, bolts and screws and components are not loose. Retighten and adjust as necessary.
Fill the fuel tank and firmly push the tank lid shut. Clean up any
fuel spillages.
Never leave fuel in the fuel tank.
5CARSON Nitro Buggy CNB 204016
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• Never use any fuel in your engine other than glow fuels
specifically designed for use in model car engines. Use of
any other types of fuel can cause severe damage to your
engine and/or personal injury. NEVER USE GASOLINE OR
DIESEL FUEL!
• Never operate your model on any public streets. This could
cause traffic accidents, personal injury or property damage.
• Glow fuel engines emit exhaust vapors that are poisonous
and can be dangerous to your health. lt is important that you
operate your engine in a very well-ventilated area, preferably
outdoors.
• Before starting your engine, make sure that the throttle trim
is set to the idle position. Starting your engine at any setting
above idle can cause the model to lurch out of your hands.
• When our engine is running, there are certain parts that
rotate at high speeds. Be careful not to touch the drive
shafts, gears, clutch assembly or any other moving parts.
Otherwise, serious injury could result.
• It is normal for your engine and tuned pipe to get very hot
during operation. Never touch these parts while they are hot
or you could be burned.
• Model car engines produce vibration when they are running.
lt is important to periodically check the engine mounting
screws and other assemblies to ensure they are tight.
Running your engine with the engine mounting screws loose
can lead to severe engine and/or chassis damage.
For your safety!
Please read these warnings first!
Engine warnings
• Glow fuels like those used in your model are poisonous.
Follow all the precautions that are printed on the fuel
manufacturer‘s container.
• Keep glow fuel out of the reach of children.
• Glow fuel is extremely flammable. Keep away from high heat,
sparks and flame.
Fuel warnings
• Under no circumstances should you operate your model in
crowds of people. Serious injury could result.
• Never operate your model on busy streets or if there are cars
around.
• Do not use your model to chase pets or other animals.
• The receiver and battery boxes are not waterproof; therefore,
do not drive through water, wet grass, mud or snow.
• Because your model is operated by radio control, it is
important to make sure you are using fresh and/or fully
charged batteries. Never allow the batteries to run low or
you could loose control of the model.
• If your model becomes stuck, allow the engine to idle, then
retrieve your model by hand.
• To prevent excessive r.p.m.‘s from damaging your engine
and/or drivetrain components, we suggest reducing throttle
while in the air during jumps.
General warnings
6
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CARSON Nitro Buggy CNB 204016
Fuel bottle
13330
Fuel
Glow plug heater
905042
Liter Nitromethan Art.-No. Usage
1.0 10% 13897 Run in/Beginner
2.5 10% 13934 Run in/Beginner
1.0 16% 13935
Normal
2.5 16% 13936 Normal
1.0 25% 13937 Race
2.5 25% 13938 Race
CARSON-Fuel
… or
Glow plug heater
and
battery 11585
After run oil Air filter oil
905044 32648
CARSON CNB – You‘ll dominate Unlimited Buggy Class with
the CARSON CNB.
Look closely, you‘ll see an incredibly low CG, clean and easyto-maintain chassis layout, a 2-speed tranny, all-new diff
housings, new multi-support upper arms, thick low-profile
shock towers, and increased suspension travel. The included
race wheels have 17 mm hubs and fit the popular 40 series tires
so you can tune your Buggy to any track surface.
CARSON also features several tuning so you can customize the
Buggy to suit your needs and driving style. From hard-anodized
5 mm shock towers to an optional reverse module, the CNB
will prove itself in every condition, from the backyard basher to
the unlimited Buggy racer. CARSON CNB is the Ultimate Buggy
Racer!
This booklet is designed to help you get
your new CARSON CNB Buggy running as
quickly as possible. This booklet includes
information on taking your CARSON CNB
Buggy from the box through its first run. lt
also includes a chassis tuning section and
a complete parts list with detalled exploded view
drawings. You will find good tips and
recommendations throughout this
booklet, so keep it handy for future
reference.
Introduction
This section lists the recommended tools and supplies that you
need to purchase and have onhand to finish assembling and
to run and maintain your new CARSON CNB Buggy. We have
tested these items extensively with the CARSON CNB Buggy
and found that they offer the best in reliability and value.
Additional items needed for starting the engine:
What fuel do I use?
Fuel can make a big difference in the way your engine
performs. For the break-in period you should use a fuel
specifically designed for R/C car engines that contains no more
than 16% nitromethane. Once the engine has been adequately
broken in (about 45 minutes of run-time) you can switch to an
R/C car fuel containing up to – but no more than – 25% nitromethane.
Nitroset 905029
Racingpack 7,2 V/ 3500 mAh
NiMH
608024
7CARSON Nitro Buggy CNB 204016
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Please read the following points
concerning fuel:
• Keep the fuel in a secure and safe place and away from
children and animals.
• Ensure that the container lid is tightly closed.
• Store the fuel in a well ventilated area and away from
moisture.
• Glow fuel is extremely flammable. Keep away from heat
sources, naked flames, electrical appliances and batteries.
Do not smoke.
• Avoid skin contact and do not swallow. Read the warning
labels on the container.
Dispose of empty fuel containers in an approved manner. Never
throw empty cans into a fire.
In case of an accident or ingestion contact a doctor
immediately. (Present the label of the fuel container if possible.)
Finally
Please read the instructions before operating your model.
Each time you have finished driving the model, always check
the correct operation of the components. A single loose screw
can result in a dangerous situation for your model. Maintain
your model regularly and replace damaged or worn out parts by
genuine spare parts.
We wish you great fun with your CARSON
model car!
Art.No. Article Motor Fuel Temperature
905006 Glow plug Rossi R2 hot 2 - 3.5 ccm without Nitro +0° - +15C°
905007 Glow plug Rossi R3 medium 3.5 - 6 ccm without Nitro -2° - +18C°
905008 Glow plug Rossi R4 cold 6 - 10 ccm without Nitro -5° - +20C°
905009 Glow plug Rossi R5 extra 3.5 - 10 ccm 10% Nitro -7° - +22C°
905010 Glow plug Rossi R6 cold universal 10 - 13% Nitro +10° - +25C°
905011 Glow plug Rossi R7 cold universal 13 - 15% Nitro +15° - +30C°
905012 Glow plug Rossi R8 extra cold universal 13 - 15% Nitro +20° - +40C°
CARSON-ROSSI glow plugs
Use following fuels for the best
performance:
CARSON „Race Fire“ (Art.-No. 3897) for break-in and normal
use
CARSON „Nitro Fire“ with 16 % (Art.-No. 13935) or
25 % (Art.-No. 13937) after break-in for more power
Do I need a fuel bottle?
Yes. Because fuel is packaged in quarts or gallons, you will
need to use a smaller bottle with an extension wand to fill the
fuel tank. Fueling using this method is much easier and a lot
less messy.The Carson fuel bottle is a good choice. Carson
fuel-bottle 500 ml (No 13306) Use this to fill the fuel tank.
Damper- und siliconoils
908048 Silicon oil 50 ml 300
908049 Silicon oil 50 ml 400
908050 Silicon oil 50 ml 500
908051 Silicon oil 50 ml 600
908052 Silicon oil 50 ml 1000
908053 Silicon oil 50 ml 3000
908054 Silicon oil 50 ml 5000
908055 Silicon oil 50 ml 7000
8
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CARSON Nitro Buggy CNB 204016
Tools needed for the assembly
Scissors 13305Needle nose pliers 74034
Side cutter 74035
Modelling knife 74053
Hexagonal wrench 13118Philips screwdriver
(small and big)
1,5/ 2 / 2,5 mm 74023
Instant adhesive 53339
Tweezers 74003
How do I remove the glow plug?
A long reach glow plug wrench is necessary to easily and
quickly remove and replace glow plugs. The CARSON
Racing 1/8th scale 4-way wrench works great.
CARSON 4-way wrench
5,5/ 8/ 10/ 17, Art.-No. 13336
What do I use to ignite the glow plug?
A glow starter is a battery-operated device that – when
attached to the glow plug – heats the glow plug so that the
engine can start. The glow starter is then removed after the
engine is running. The CARSON glow starter with meter is a
perfect choice. lt comes complete with a battery, charger and a
built-in meter to let you know if your glow plug is good.
CARSON Glow starter set
Art.-Nr. 11364
Do I need to purchase extra glow plugs?
We recommend using a „medium“ or „hot“ heat-range glow
plug intended specifically for performance engines like the No 3
(905007) during the break-in process. After the break-in period
you may want to use a different heat-range glow plug. Use a
colder glow plug like the No 6 (905010) if you‘re using 25% nitro
fuel.
Do not use glow plugs intended for four stroke airplane engines
or glow plugs with an „idle bar“. Using the wrong type of glow
plug will cause the engine to run erratically and make it
difficult to tune properly. The wrong type of glow plug could
also damage the engine.
In addition to the items listed on the previous page, the
following tools and supplies will also be required to run and
maintain your CARSON CNB:
CARSON NiMH batteries, 4 pieces (3 x for transmitter and
receiver) Art.-No. 609000
Air filter oil 50 ml
Art.-No.32648
9CARSON Nitro Buggy CNB 204016
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Reverse drive switch
Batterybox
Steering reverse switch
Antenna
Steering trim dial
Power Switch
LED battery indicator
Throttle reverse switch
Throttle/brake dial
Crystal
Throttle/brake
trigger
Steering wheel
Each radio system comes with a sticker on the back of the
transmitter and on the receiver showing which frequency the
radio system operates on. No two radio systems can operate
nearby each other if they are on the same frequency. You can
purchase transmitter and receiver crystals separately and
change them if you plan on running your Buggy with other
people. We have provided a list of the frequencies that are
available for your radio system.
Antenna: Transmits the signal from the transmitter to the
receiver. The antenna should be completely extended during
use.
Battery cover: This cover houses the 8 AA Alkaline
batteries that power the transmitter.
Crystal: This is the frequency crystal of the
transmitter. You can change crystals in both the
transmitter and the receiver so that you and your friends
can drive at the same time. No two radio systems nearby
can be operated on the same frequency.
On/off switch: Turns the transmitter on and off.
Servo reversing switches: Allow you to quickly and
easily change the direction the servos rotate by just
flipping the switches.
Steering wheel: Controls your Buggy‘s steering. Turn
the wheel to the right and the Buggy turns right. Turn the wheel
to the left and the Buggy turns left.
Steering dual rate control dial: This dial adjusts
the overall travel of the steering servo. Push the dial forward for
maximum steering (125%). Pull the dial back to reduce steering
travel (minimum 60%).
Throttle/brake trigger: Controls the speed and
braking ability of your Buggy. Pull the trigger to accelerate,
release the trigger to decelerate, and push the trigger to brake.
Trirn dials: These dials, one for steering and one for
throttle/brake control, allow you to fine tune the servo‘s center
by turning the dials on the transmitter back and forth.
Becoming familiar with your CARSON Nitro
Buggy
Chassis
2-Speed transmission:
The 2-speed transmission automatically shifts from low to high
gear for awesome top speed and features an adjustable shift
point. Tighten the adjustment screw to shift at a higher speed.
Loosen the adjustment screw to shift at a lower speed.
Air filter:
The air filter is made of foam and prevents dirt and debris from
entering the engine through the carburettor. The air filter should
be „wet“ with air filter oil for maximum efficiency.
Battery box:
This is where the receiver battery is mounted. The battery box
protects the batteries from dust, dirt and oil. The battery box is
not waterproof.
Body mount:
Made of high-impact nylon plastic for strength, the body
mount secures the body into place.
Engine:
The CARSON CNB Buggy includes the powerful 4.58 cm3
FORCE engine with pull-starter and tuned pipe for ease of use
and great performance.
Front bumper: Made out of high-impact nylon plas-
tic, the front bumper protects the chassis from most head-on
impacts.
Fuel tank:
The fuel tank holds the fuel that your engine uses. This fuel tank
includes a fuel pressure nipple that connects to the tuned pipe
to pressurize the fuel system and also features a quick-flip type
lid for fast refueling.
EMS-system:
Used to start the engine.
Shock:
Each shock is oil-filled and uses a spring that is well suited for
most off-road conditions. The shocks feature threaded shock
bodies that allow the shocks to be easily tuned for different
driving conditions. The shocks come standard with 1OO Wt oil
and 1.7 mm springs.
Steering servo:
This servo controls the vehicle‘s steering. A „servo saver“ is
used to help prevent the servo gears from being stripped out.
10GBCARSON Nitro Buggy CNB 204016
Steering tie-rod:
The tie-rod connects the steering linkage and the castor block.
The tie-rods are adjustable so you can make toe-angle
adjustments to the front wheels.
Tuned pipe:
The tuned pipe is an expansion muffler that greatly increases
the power output of the engine.
Wheel/tire assembly:
The CARSON CNB Buggy includes molded rubber tires with
a tread pattern that is good for most off-road applications. The
wheels are molded in one piece from lightweight, high-impact
plastic for strength.
Receiver box
Motor
Front tyre
Front shock unit
Chassis
Rear shock unit
Rear tyre
Steering servo
Fuel tank
Tuned pipe
Steering rod
On/off switch
Battery box
Body mount
Shock tower
2-Speed-transmission
with reverse gear
Cylinder head
Start EMS
11CARSON Nitro Buggy CNB 204016
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IMPORTANT
Before continuing, please double-check that you‘ve read and
understood the warnings. It‘s important that you understand
this information before preparing to run your CARSON CNB
Buggy. Also, remember, if you have any questions or encounter
any problems, you can contact us using the Customer Service
Information (see last page).
Included:
Completely assembled the CNB with body having been painted
from the inside, decal sheet, EMS-system including E-starter
and 40MHz radio control as well as 3 servos.
a. Preparing to run your model
Push the telescoping transmitter antenna down into the molded
hole in the top of the transmitter.
Thread the antenna (clockwise) into place and tighten it gently
until it stops.
IMPORTANT: Do not force the antenna into place or tighten
it too strongly. Doing so could cause damage to the antenna
and/or transmitter.
a. Final assembly
Install the tires and wheels onto the chassis, making sure to
tighten the wheel retaining nuts firmly. Notice that the back of
the wheels are molded to key over the hex-shaped wheel hubs.
All four wheels and tires are the same.
Picture 1
Picture 2
Remove the plastic battery cover from the bottom of the
transmitter.
Install 8 AA Alkaline batteries into the battery tray, doublechecking to make sure that the polarity is correct.
Reinstall the battery cover and set the transmitter aside for
now.
Picture 3
12GBCARSON Nitro Buggy CNB 204016
Open the battery box cover by removing the retaining clip and
pulling up on the front of the cover. The battery box cover is
hinged at the back for convenience.
Remove the battery holder from the battery box.
Picture 4
Install 4 AA Alkaline batteries into the battery holder, doublechecking to make sure that the polarity is correct.
IMPORTANT: Make sure that the batteries are pushed firmly into
place. They should not be loose. lf for any reason the plug from
the battery holder (male red plug) is not plugged into the switch
(female red plug), plug them together now. The plugs can fit
together only one way.
Picture 5
Remove the four screws from the receiver mounting box cover,
then remove the cover. Uncoil the receiver antenna and feed it
out through the hole in the cover.
Reinstall the cover, making sure not to pinch any of the wires.
Picture 6
Slide the receiver antenna into one end of the plastic antenna
tube and out the other end.
Push the end of the antenna tube firmly into the metal clamp in
the top of the receiver mounting box cover, then gently tighten
the knurled nut to lock the tube into place.
IMPORTANT Leave the excess antenna hanging from the top of
the tube. Under no circumstances should you cut the antenna
shorter.
Picture 7
13CARSON Nitro Buggy CNB 204016
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Slide the receiver‘s on/off switch to turn the receiver on. You
should hear the servos move to their proper positions.
Safety Tip:
Always turn on the transmitter first, followed by the receiver.
After you‘re done, turn off the receiver first, then turn off the
transmitter. This will prevent the possibility of a runaway model
or damage to the servos.
Picture 9
Slide the transmitter‘s on/off switch up to turn on the
transmitter. The red LED should glow brightly.
Picture 8
b. Range checking the road control system
To ensure that the radio control system is operating properly
and to prevent any chance of a runaway model, the radio
control system should be range checked before the first run of
the day and/or after a crash. To range check the radio control
system do the following:
With the transmitter and receiver turned on, extend the
transmitter antenna completely. With the Buggy on the ground
(without the engine running) walk away from it. Move the
steering wheel while looking at the Buggy‘s wheels. The wheels
should pivot back and forth as you rotate the steering wheel
back and forth. Because of the Buggy‘s weight and large
wheels, the steering won‘t operate perfectly smoothly unless
you lift the front of the Buggy off the ground. This goes away as
soon as the Buggy starts rolling.
IMPORTANT
lf the radio system does not operate properly, please refer to
the troubleshooting guide on page 27 before continuing further.
Never attempt to operate your Carson CNB if the radio control
system is not functioning properly.
14GBCARSON Nitro Buggy CNB 204016
c. Double-check the steering and throttle/brake
controls
PRO TIP: We suggest doing the steering tests while lifting the
front of the Buggy off the ground. This will allow the steering
system to operate smoothly, without any binding.
With the transmitter and the receiver turned on, rotate the
transmitter‘s wheel forward (to the right). The Buggy‘s front
wheels should turn right.
IMPORTANT
lf the wheels don‘t turn right, flip the steering servo reversing
switch on the top of the transmitter to change the direction that
the front wheels turn. Refer to the transmitter photo and
definitions on page 9 if you don‘t remember how to use the
servo reversing switches.
Picture 10
Rotate the transmitter‘s wheel backward (to the left). The
Buggy‘s front wheels should turn left.
Let go of the transmitter wheel. The Buggy‘s wheels should
return to center.
IMPORTANT
lf the wheels do not point straight ahead (center) after you
return the transmitter wheel to center, turn the steering trim
dial on the transmitter to adjust the wheels so that they point
straight ahead. Refer to the transmitter photo and definitions on
page 9 if you don‘t remember how to use the servo trim dial.
Picture 11
• Carefully pull the air filter assembly off of the carburettor, so
that you can see the carburettor barrel.
• Pull back on the throttle trigger. The carburettor barrel
should open completely and the brakes should be disengaged (i.e., the Buggy should roll forward smoothly).
• Let go of the throttle trigger and the carburettor barrel
should return to its idle position – open about 1/16“ (1 mm).
The brakes should still be disengaged, too. lf not see
page 21 „Adjusting the Brake Linkage“.
IMPORTANT
lf the carburettor barrel does not open when you pull back on
the throttle trigger, flip the throttle servo reversing switch on the
top of the transmitter to change the direction.
Picture 12
15CARSON Nitro Buggy CNB 204016
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• Push the throttle trigger forward. The carburettor barrel
should stay in the idle position – open about 1/16“ (1 mm)
and the brake linkage should move forward and engage the
brakes (i.e., the Buggy will not be able to roll at all).
• Let go of the throttle trigger and the brakes should
disengage.
IMPORTANT
lf you need to adjust the brake linkage, see page 21 „Adjusting
the brake linkage“.
Picture 13
Air filter warning!
Turn off the transmitter and receiver and push the air filter back
onto the carburettor. lf it‘s difficult to push the air filter back
onto the carburettor, apply a thin coat of after-run oll to the
inside of the silicon boot before reinstalling it.
Warning!
Under no circumstances should you operate the engine without
the air filter installed on the carburettor. The air filter prevents
dust and debris from entering the engine and damaging it.
lf you operate your engine at any time without the air filter
installed, the engine will not be covered under warranty should
it need repair.
Upgrade Tip:
To prevent your Buggy from going out of control should the
radio control system encounter signal loss, we suggest using
an electronic failsafe. The failsafe is connected between the
throttle/brake servo and the receiver. The failsafe is designed
to electronically bring the throttle to idle and apply a preset
amount of braking force should the radio control system lose
its signal.
We suggest using the CARSON failsafe 503020.
Picture 14
d. Wetting the air filter
To prevent damage to your engine, we strongly recommend
„wetting“ the air filter element, using a high-quality filter oil or
after run oil.
To wet the air filter element, simply squeeze an ample amount
of air filter oil or after run oil onto the filter element and work it
through the filter element using your fingers. Use enough oil to
completely saturate the filter element. The entire filter element
should be oiled, but not so much that excess oil is dripping
from it.
Picture 15
16GBCARSON Nitro Buggy CNB 204016
Upgrade tip:
lf you wil be running your Buggy in extremely dusty conditions,
we suggest using a prefilter sleeve over the air filter.
Wet the main filter element as described before, then simply
slide the prefilter sleeve over the main filter. It‘s not necessary,
nor desirable, to wet the prefilter sleeve.
We suggest using racing 1/8th scale prefilter sleeves
Art.-No. 52175.
Picture 16
e. Force Motor 4,58 cm
3
It‘s now time to become familiar with your
engine. This includes how to set the
carburettor, break in the engine and how
to tune it properly. Please read the next
few pages very carefully.
Warning!
Please read this information
before proceeding!
Your Carson CNB Buggy comes equipped with the user-friendly
and powerful Force 28 nitro engine. Before starting the engine
for the first time, you MUST read this section very carefully. This
section details the different parts of the engine‘s carburretor
and how to adjust the carburretor‘s needle valves to tune the
engine. Failure to read this information may result in your
not knowing how to properly operate your new engine. Not
knowing how to operate your new engine can result in damage
to the engine.
Refer to picture 17 familiarize yourself with your engine‘s
carburretor. All of the carburretor settings come preset from the
factory for initial starting and break-in, but you should have a
small flat blade screwdriver handy to make adjustments to the
carburretor during the break-in process, which will be detailed
in the next section.
Low speed needle
valve
Idle stop screw
High speed
needle valve
Picture 17
Idle stop screw
The idle stop screw adjusts the closure of the carburretor
barrel. We recommend that the idle stop screw be adjusted
so that the carburretor barrel stays open about 1/16“ (1 mm).
Turning the screw clockwise will cause the barrel to stay open
more.
Turning the screw counterclockwise will allow the barrel to
close more. lf the carburetor barrel stays open too far, the
engine will idle very high and the clutch will never disengage.
This will damage the clutch very quickly. lf the idle stop screw
is closed too far, the engine may die during idle. Ideally, the
engine should idle smoothly, yet slow enough so that the clutch
stays disengaged.
1 mm
Picture 18
17CARSON Nitro Buggy CNB 204016
GB
High speed needle valve:
The high speed needle valve is preset from the factory for the
initial starting procedure. Do not make adjustments to it at this
time. The high speed needle valve is used to meter the air/fuel
mixture at full throttle. Turn the needle valve clockwise to lean
the mixture or turn the needle valve counterclockwise to richen
the mixture.
The factory setting for the high speed needle valve is 3 full
turns out from bottom.
Turn clockwise
to lean
Picture 19
Turn counterclockwise
to richen
Low speed needle valve:
The low speed needle valve is preset from the factory for the
initial starting procedure. Do not make adjustments to it at this
time. The low speed needle valve meters the air/fuel mixture at
idle and during transition from idle to full throttle. Turn the low
speed needle valve clockwise to lean the mixture. Turn the low
speed needle valve counterclockwise to richen the mixture. The
low speed needle valve is preset from the factory, but minor
adjustments may need to be made to suit your application: fuel
used, glow plug and environment all contribute to the setting.
Do not adjust the low speed needle valve until AFTER the
engine has been broken in.
Picture 20
Turn clockwise
to lean
Turn counterclockwise
to richen
Important tip:
About resetting the low speed needle
valve
lf you need to reset the low speed needle valve to the factory
setting, follow these simple procedures:
Open the carburretor barrel completely. While holding the
carburretor barrel open with your fingers, use a flat blade
screwdriver to turn the low speed needle valve clockwise until
it stops. From this point, turn the low speed needle valve counterclockwise 3 full turns. This is the factory setting.
f. Fueling and starting the Force nitro engine
lf at any time the E.M.S.-starter becomes very tight or difficult
to work – STOP! The engine has become flooded and the
excess fuel must be removed from the engine or damage to the
pull-starter and/or engine could occur. To remove the excess
fuel from the engine follow the procedures listed below:
Completely close the high speed needle valve until it bottoms
out. Do this gently. Don‘t force it!
Remove the glow plug from the cylinder head.
With a rag over the top of the engine, pull the pull-starter cord
several times to expel the excess fuel from the engine.
Check to make sure that the glow plug has not been fouled,
then reinstall it.
Reset the high speed needle valve 3 full turns out from bottom.
WARNING
Under no circumstances should you operate the engine without
the air filter installed on the carburetor. The air filter prevents
dust and debris from entering the engine and damaging it.
lf you operate your engine at any time without the air filter
installed, the engine will not be covered under warranty should
it need repair. Also make sure that you ”wet“ the air filter as
described on page 15.
Warning!
Please read this before starting
your engine for the first time!
18GBCARSON Nitro Buggy CNB 204016
Lift the fuel tank lid carefully fill the fuel tank until the fuel level
is just below the top of the fuel tank.
WARNING
Use fuel that is appropriate for nitro car and buggy engines.
Do not use gasoline or diesel fuel! For the break-in period you
should use fuel specifically designed for RX car engines that
contains no more than 16% nitromenthane.
Picture 21
• Using your glow plug wrench, verify that the glow plug is
installed in the cylinder head and tight.
• Open the throttle completely and cover the exhaust opening
in the tuned pipe with your finger.
• Push the shaft of your E.M.S. starter into the flange at the
engine‘s back.
• Push the button at your E.M.S. starter for several short times
until the fuel in the tube reaches the carburettor.
• Remove your finger from the tuned pipe opening and close
the throttle down to the idle position.
• Push the E.M.S. starters button once again a couple of short
times while holding the CNB firmly with one hand.
Picture 22
• Now stick the glow starter with fully charged battery through
the heat sink to the top of the glow plug.
• Keep the carburettor in idle position, firmly hold the CNB
with one hand and push the E.M.S. starter until the engine
starts and runs.
• However the glow starter has to stick onto the glow plug for
around 10 seconds.
Picture 23
19CARSON Nitro Buggy CNB 204016
GB
IMPORTANT!
lf the EMS-System does not work properly, please do not
force it! The engine has probably become flooded. Proceed as
described on page 28.
Once the engine is running, to stop the engine, carefully pinch
the fuel line with your fingers until the engine stops. Make sure
to pinch the fuel pick-up line and not the fuel pressure line. The
fuel pick-up line is the one connected to the carburretor.
WARNING
Be careful not to touch any parts of the
engine or the tuned pipe because they
will be hot.
Picture 24
g. Breaking the Force 28 nitro engine
The Force 28 engine is an ABC engine. The cylinder sleeve is
tapered at the top, causing severe resistance when the piston
moves through the top of the stroke. This is normal. When
the engine heats up to operating temperature, this resistance
will decrease and the proper clearance will be achieved. The
break-in procedure will guide you through the steps necessary
to properly break in your new engine. Please follow the steps
closely.
FUEL RECOMMENDATION: Fuel can make a big difference
in the way your engine performs. For the break-in period you
should use a fuel specifically designed for R/C car engines that
contains no more than 16% nitromethane. Once the engine has
been adequately broken in (about 45 minutes of run-time) you
can switch to an R/C car fuel containing up to, but no more
than, 25 % nitromethane.
Air filter:
The air filter is a very important part of your engine. Failure to
use the air filter will damage the engine in a very short period
of time. Make sure that you „wet“ the air filter as described on
page 15 and use a prefilter sleeve if you are driving in dusty
conditions.
Breaking the engine
Warning! Do not adjust the low speed needle valve until
after the engine has been broken in. You can begin to adjust
the low speed needle valve after you have broken in the engine
and after you have read and understood step 2: Fine tuning
the engine below. The high speed needle valve is preset from
the factory for easy starting in most conditions for the break-in
period.
Engine tuning tip:
No two engines will have the exact same needle valve settings
once broken in. Different fuels used, different types and
heat-ranges of glow plugs, the outside air temperature and air
pressure all affect the engine.
The factory needle valve settings on page 14 are break-in
settings. lf you reset the needle valves to the factory settings,
the engine will run very rich and you will need to retune the
engine.
Engine break in tip:
During break-in, it‘s normal for excessive fuel oil and exhaust
residue to drip from the tuned pipe. Break-in the engine without
the body installed. It‘s important that the engine have aid
during the break-in process.
Once the engine starts, keep the glow starter attached to the
glow plug and let the engine run for about 10 seconds without
giving it throttle. This will allow the engine to warm up. At this
point the engine should be running very „rich“ and the engine
will also sound like it‘s running rough.
After the engine has been running for about 10 seconds,
remove the glow starter from the glow plug. Advance the
throttle in short, quick bursts and drive the Buggy for about 2-3
minutes. lf the engine is running rich enough, you should notice
smoke coming from the tuned pipe and the engine should
sound like it‘s running very rough. Also, the Buggy will barely
be moving because the engine is running so rich that it won‘t
produce much power. This is what you want for now.
lf there is not smoke coming from the tuned pipe, richen the
high speed needle valve 1/4 turn. After 2-3 minutes stop the
engine by pinching the fuel line to the carburretor.
20GBCARSON Nitro Buggy CNB 204016
Let the engine cool for approximately 10 minutes, then restart
it. Set the high speed needle valve mixture to a slightly leaner
setting, about 1/8 turn more in. Repeat the procedure above,
then stop the engine and let it cool for approximately 10
minutes.
Repeat the procedure above, leaning the high speed needle
valve slightly more each time. In all, you should run the engine
a total of about 45 minutes.
After 45 minutes of run-time the engine will be broken in. Run
the engine with the high speed needle valve set slightly rich,
but lean enough to power the Buggy adequately. At this point
the engine should hold a good setting on the high speed needle
valve and you can begin to fine tune the needle valve settings
to increase performance.
Warning
lt is of the utmost importance that the engine never be leaned
out too much. When running the engine, you should always be
able to see a slight trail of smoke coming from the tuned pipe.
lf you can‘t, stop the engine immediately and richen the high
speed needle valve. You should also make sure there is plenty
of air flowing over the cylinder head to keep the engine from
overheating.
Fine tuning the engine
After your engine has been broken in, you can set the high and
low speed needle valves for optimum engine performance.
Warning about tuning your engine
Be careful to never lean out the engine too much. Remember
that the lubricants for your engine are suspended in the fuel. lf
you lean out the fuel mixture too much you will also be lowering
the amount of lubricant entering your engine. Less lubricant
means more chance of your engine overheating and possible
engine failure.
Setting the high speed needle valve
Start the engine and remove the glow starter from the glow
plug, then allow the engine to warm up for about 10 seconds.
After the engine has warmed up, drive the Buggy as you
normally would. lf the engine seems to be running rich (i.e., not
reaching maximum power), lean the high speed needle valve
about 1/16 of a turn at a time until the desired setting is
achieved. Always make sure that you run the engine slightly
rich – you want to be able to see a faint exhaust trail at all
times.
Setting the low speed needle valve
Start the engine and lean out the high speed needle valve as
per the procedures above. Close the throttle until the engine
slows down enough so that the clutch is disengaged and the
wheels don‘t turn when the Buggy is lifted from the ground.
Allow the engine to idle for about 10-15 seconds.
While holding the Buggy off the ground (making sure to keep
your fingers out of the moving parts), quickly open the throttle
in a short burst. lf the engine just stops running as soon as the
throttle is advanced, the low speed needle valve is too lean and
the engine is not getting enough fuel. With the engine stopped,
richen the low speed needle valve about 1/16 of a turn
(counterclockwise).
lf you quickly advance the throttle and the engine seems to be
very rich during transition (i.e., lots of smoke coming from the
tuned pipe and very rough sounding), the low speed needle
valve is too rich and the engine is getting too much fuel. With
the engine stopped, lean the low speed needle valve about
1/16 of a turn (clockwise).
Restart the engine and repeat the procedure above until
the engine will transition smoothly and quickly. Very slight
hesitation in the transition is normal.
Basic engine maintenance
To keep your engine operating at peak performance there
are some basic maintenance procedures that need to be
performed on the engine on a regular basis:
• After you are finished running the engine for the day, pinch
the fuel line to stop the engine. This will allow the engine to
burn any excess fuel out of the crankcase.
• Remove the air filter element and wash it thoroughly in warm
water and a small amount of liquid detergent. After it‘s clean,
allow it to dry, then reoil it and install it back into the air filter
housing.
• Remove the glow plug from the engine and squirt several
drops of high-quality after-run oil into the glow plug hole.
Pull the pull-start cord several times to distribute the oil
throughout the engine, then reinstall the glow plug. The
after run oil will prevent the inside of the engine (especially
he crankshaft bearings) from rusting.
• Clean the outside of the engine using a heavy brush and
nitro car cleaner, then dry the engine, using a rag or
compressed air.
• Periodically check the condition of the clutch to check for
wear.
• Periodically oil the clutch bell bearings.
• Check the engine‘s cylinder head bolts and backplate
screws after each day of use to ensure that they‘re tight.
This will prevent air leaks from causing erratic engine
performance.
21CARSON Nitro Buggy CNB 204016
GB
h. Installing the body
Install the body onto the chassis, using the body clips provided
to hold it in place.
Pro tip:
Other than during the break-in period, always make sure that
you install the body when driving your Buggy. lf your Buggy
flips over, the body will help protect the chassis and its components.
Tuning guide!
Making chassis adjustments
Chassis alignment and geometry are important if you want
your Buggy to perform well. A good performing Buggy means a
Buggy that is easier to drive, too.
Follow our guidelines in this section to get the most out of your
CNB.
IMPORTANT
It‘s very important when making changes to the settings of your
Buggy that you make the settings the same for each side. For
example, if you change the spring tension on the right front
shock, you should change the spring tension on the left front
shock the same amount, etc.
Do not make any changes that are more than 3 degrees from
the initial settings listed or the handling characteristics of your
Buggy will become very poor.
i. Adjusting the brake linkage
The brake linkage on your Buggy is preset from the factory;
however, after running the Buggy for a while you may find that
the brake linkage needs adjusting.
Follow the information below to check and adjust the brake
linkage:
With the transmitter and receiver turned on, and the throttle/
brake trim lever centered, the Buggy should roll forward
smoothly (i.e., the brakes should be disengaged). lf the brakes
are dragging when the throttle trigger is at neutral, the brake
discs will wear out very quickly. To ensure that the brakes are
disengaged, always make sure that there is a 1/16“ wide gap
between the two rear steel adjustment collars and the brake
levers. Both steel adjustment collars should be adjusted so that
they are equal distance behind each of the two brake levers.
This will ensure that both brake levers engage equally during
braking.
To make adjustments to the brake linkage, simply loosen the
grub screw in the adjustment collars behind the brake levers
and reposition them, then retighten the grub screws. Moving
the collars forward, toward the brake levers, will result in the
brakes coming on sooner and more forcefully.
Picture 25
22GBCARSON Nitro Buggy CNB 204016
j. Adjusting the toe angle
Picture 26
0° Toe angle
Toe out
Toe in
The toe angle is the angle of both front tires (or rear tires) to
each other, when viewed from above. Toe-in is when the front of
both tires point toward each other and toe-out is when the front
of both tires point away from each other.
For the front tires, toe-in will make your Buggy track
straighter, but the steering will be more sensitive. Toe-out will
desensitize the steering, making the Buggy a little more driverfriendly.
For the rear tires, if you‘re running on a smooth
surface, we suggest no toe-in. lf you are running on a rough
surface, we suggest about 1 - 2 degrees of toe-in. This will give
the rear end a little more „bite.“
Adding more than 3 degrees of toe-in or toe-out will result in
excessive loss of speed and erratic handling.
To adjust the toe-angle of the front tires, turn the tie-rods (steel
rods connecting each wheel to the steering arm) in or out with
an adjustable wrench. To adjust the toe angle of the rear tires,
you need to replace the toe angle block, described below:
To adjust the toe-in on the rear tires, use one of the different
composite toe angle blocks provided in your kit to set the
• To change the rear toe angle block, first remove the two
screws from the bottom of the chassis that hold the toe
angle block screw guard in place, remove the screw guard
from the chassis.
• Next, remove the two screws that hold the toe angle block
in place, then carefully pull out the toe angle block, being
careful not to pull out the hinge pins.
• Install the desired toe angle block. Installation is the reverse
of the disassembly procedure.
Picture 27
desired toe angle. For convenience, the degree of toe angle in
each block is molded into the back of the blocks. The stock
toe-angle block is 2°.
23CARSON Nitro Buggy CNB 204016
GB
Picture 28
Picture 29
k. Adjusting the camber angle
Camber is referred to as the amount of the tire‘s surface that
contacts the ground. Tires that are exactly perpendicular to
ground have 0 degrees of camber.
lf the top of the tire leans in toward the chassis, the tire has
negative camber. lf the top of the tire from the chassis, the tire
has positive camber.
Recommended initial settings:
For driving on smooth surfaces set both the front and back
wheels at 0 degrees.
For driving on rough surfaces set the front wheels at -1 degree
and the back wheels at -2 degrees.
Adjust the camber angle of the wheels by turning the upper
turnbuckles in or out using an adjustable wrench.
Negativ camber
Positive camber
l. Adjusting the 2-speed transmission shift point
The transmission shift point has been preset for you from the
factory, but it is possible to fine tune the adjustment to suit your
driving style. The shift point is the point at which the 2-speed
transmission will shift from first gear to second gear.
Adjust the shift point by turning the small grub screw in the
aluminum 2-speed clutch housing, using a 1.5 mm hex wrench.
Turning the grub screw clockwise will make the transmission
shift at a higher speed.
Turning the grub screw counterclockwise will make the
transmission shift at a lower speed.
The 2-Speed transmission has been preset for you from the
factory. No initial adjustments are necessary. To adjust the
2-speed transmission, you must first locate the small grub
screw in the clutch housing.
To locate the grub screw, lift the Buggy off the ground and
slowly rotate the spur gear assembly until you can see the
small grub screw through the milled access hole in the clutch
housing. Once the small grub screw is visible, use a 1.5 mm hex
wrench to adjust the grub screw.
To make the transmission shift at a higher speed, turn the grub
screw clockwise 1/8th of a turn. To make the transmission shift
at a lower speed, turn the grub screw counterclockwise 1/8th of
a turn.
Picture 30
Adjust grub
screw
24GBCARSON Nitro Buggy CNB 204016
Warning!
We suggest making 1/8th of a turn adjustments at a time,
testing the shift point between each adjustment you make, until
you are satisfied with the transmission shift point.
Important!
There are two screws in the 2-speed clutch housing. One is a
grub screw that uses a 1.5 mm hex wrench and the other is a
steel socket-cap screw that uses a 2.5 mm hex wrench. Do not
attempt to adjust the larger screw. This screw holds the clutch
housing onto the transmission shaft.
To reset the 2-speed transmission shift point, please proceed
as follows:
The screw has to be positioned 1 mm below the edge! This is
the basis setting for the 2-speed gear transmission!
Picture 31
m. Adjusting shock spring tension
By adjusting the spring tension of the shocks, you can increase
steering sensivity, adjust the ride-height of the Buggy and finetune the dampening quality of the suspension system. How you
drive your Buggy will dictate what settings you should be using.
As an example, if you‘re driving your Buggy off-road and going
over lots of jumps, you may want to increase the spring tension
of the front shocks to help prevent the front of the Buggy from
bottoming out.
lf you‘re racing your Buggy, local track conditions will dictate
the settings to use.
Recommended initial settings:
We recommend initially leaving the adjustment rings in the
factory locations. Increase or decrease spring tension by
threading the adjustment ring up or down the shock body.
Threading the ring down increases spring tension and the
Buggy‘s ride height, and will stiffen the overall dampening
characteristics of the suspension.
Threading the ring up decreases spring tension and makes the
dampening characteristics softer.
When adjusting the spring tension, make sure to adjust the
right and left sides equally.
25CARSON Nitro Buggy CNB 204016
GB
Picture 32
n. Adjusting shock dampening and replacement
shock springs
Changing the shock oil (the oil inside the shocks) will change
the dampening characteristics of the shocks. Typically, if you
are running on smooth surfaces, use a heavier weight oil. lf you
are running on rough surfaces, use a lighter weight oil.
IMPORTANT We recommend using only 100% silicone
shock oil. Do not use motor oil. The shock oil used in the
CARSON CNB Buggy is 100 Wt shock oil. This is good for allaround use. For racing, you may want to consider using 45 Wt
oil.
Shock springs are easy to change and can make a difference
in the way your Buggy handles relative to the type of terrain
you‘re driving on. lf you drive your Buggy off-road, in a smooth,
high-traction area, use stiffer springs to reduce body roll and
weight shift. lf the area where you drive your Buggy is very
bumpy, you might consider using softer springs to help absorb
the bumps.
lf the area is bumpy and you use harder springs, the Buggy will
have a tendency to jump and hop around. The shock springs
included with the CARSON CNB Buggy are suitable for most
general off-road applications, but experimentation with different
shock springs may be necessary to find a setup that suits your
particular driving style and location.
Picture 33
Soft
Set Art.-No. 205322
Picture 34
o. Adjusting the front and rear differentials
The CARSON CNB Buggy features front and rear gear
differentials that each feature o-ring seals and cup-style
housings. Both differentials are packed with differential grease
that is good for most driving conditions.
You can make fine-tuned adjustments to each differential by
removing the differentials from the chassis, opening them up
and replacing the grease already inside the differentials with
silicone differential oil.
Adding heavier silicone oil will tighten the differentials and
adding lighter silicone oil will loosen the differentials. lf your
Buggy feels loose during turns, you can tighten the front
differential or loosen the rear differential. lf your Buggy is
pushing during turns, you can loosen the front differential or
tighten the rear differential. We recommend using silicone oil
weights between 1000 (1 K) and 7000 (7 K).
For your convenience, we show you how to remove and
disassemble the front differential. Removing and disassembling
the rear differential is similar. Refer to the parts blow up and
assembly sequence on page 58 if necessary.
Remove the six screws from the bottom of the chassis that hold
the front bumper in place, then remove the front bumper.
Next, remove the screws that hold the upper and lower hinge
pin support plates in place, then remove the two hinge pin
support plates.
Pull the front half of the diff case straight out, then remove the
lower hinge pins and drop the suspension arms.
Firmly pull the differential assembly straight out.
Silicon oils
908048 Silicon Oil 50 ml 300
908049 Silicon Oil 50 ml 400
908050 Silicon Oil 50 ml 500
908051 Silicon Oil 50 ml 600
908052 Silicon Oil 50 ml 1000
908053 Silicon Oil 50 ml 3000
908054 Silicon Oil 50 ml 5000
908055 Silicon Oil 50 ml 7000
26GBCARSON Nitro Buggy CNB 204016
Picture 35
Remove the two CVD drive shaft cups from the diff assembly,
then remove the four screws that hold the diff halves together.
Pull the diff halves apart, then pull the diff assembly (w/ring
gear attached) out of the diff housing.
Remove the four screws that hold the diff case together, then
pull the diff case apart to open up the diff. You can now remove
the grease inside the diff and refill the diff with the differential
oil of your choice. Installation is the reverse of the disassembly
procedure.
p. Maintaining your CNB Buggy
Following a simple maintenance schedule will ensure that
your CARSON CNB Buggy engine and radio control system
operate in top condition every time you use them. lt is strongly
suggested.
Check the foam air filter element for dirt blockage. lf the foam
is dirty, remove it from the filter housing and wash it in liquid
soap and warm water. Dry the foam element with a paper towel,
reinstall it and ”wet“ it with after run oil. See page 15 for more
info.
Check the chassis for any loose screws, especially the engine
and the outdrive cup mounting screws. Tighten them if
necessary.
Any screws that are threaded directly into metal should be
secured into place with Blue Lock-Tite. This will prevent the
screws from loosening during use. Screws threaded into nylon
or composite material do not require Lock-Tite.
Check the steering linkage and the throttle/brake linkage for
any signs of wear or misalignment. Tighten and/or readjust
them if necessary. Double-check that the grub screws in the
steel collars are tight.
Once in a while, remove the wheels and clean the wheel
bearings, using a bearing cleaner. This will remove any dust and
grit that may, over time, damage the bearings. After cleaning
the bearings, reoil them using a good quality bearing oil. Never
run the bearings dry or damage to the bearings will result.
When you clean the wheel bearings as described above, also
remove, clean and reoil the clutch bell bearings.
Check the fuel system, including the fuel tank and fuel tubing,
for any signs of cracking or looseness. Replace any fuel tubing
you suspect may be damaged.
Check the condition of the transmitter and receiver batteries
after each time you drive your Buggy. lf you think they might be
low, replace them with a fresh set.
After a period of time the chassis will accumulate a lot of dirt
and debris, especially around the engine area. This buildup
should be cleaned off using a high-powered spray cleaner
like Nitro Car Cleaner. Some nitro car cleaners will damage
anodized andlor plated parts. Test on an inconspicuous area
first.
After cleaning the chassis and engine with Nitro Car Cleaner,
you should oil the moving parts of the chassis. Do not oil the
clutch bell, spur gears or the brake discs.
Picture 36
Always use new fuel and keep the cap on the fuel tightly
closed. As fuel ages it absorbs water, which degrades the fuels
performance and will cause erratic engine operation.
After you have finished using the engine for the day, remove
the glow plug from the engine and squirt several drops of highquality after run oil into the glow plug hole. Pull the pull-start
cord several times to distribute the oil throughout the engine,
then reinstall the glow plug. This will prevent corrosion inside
the engine.
Never leave unused fuel in the fuel tank for more than a
couple of days. The nitromethane and methanol in the fuel will
evaporate, leaving the oil behind. This will eventually turn into a
thick sludge that will require replacement of the fuel tank to fix.
lf you need to remove the engine to clean it or change the
clutch bell, etc., it‘s important that you set the gear mesh
between the clutch bell and spur gears properly when reinstalling the engine; otherwise, the spur gears may be damaged or
the gears may bind. To set the gear mesh, first start by having
the engine mount assembly temporarily in place, then slide the
engine back within the mounts until the teeth on the clutch bell
are even with the spur gears. When satisfied with the alignment,
tighten the four socket-cap screws to secure the engine to the
engine mounts. This will ensure that the clutch bell is lined up
with the spur gears.
Next, place a piece of notebook paper between the clutch bell
and each of the spur gears, and push the engine toward the
spur gears firmly, so that the notebook paper crinkles. When
set properly, there should be very slight play between the gears.
27CARSON Nitro Buggy CNB 204016
GB
lf the gears are too tight they will bind and if they are too loose
they will strip out. When satisfied with the alignment, tighten
the four hex screws on the bottom of the chassis. With the
wheels off the ground, you should be able to spin the clutch
bell with your finger. The clutch bell should rotate the spur
gears and other drivetrain components rather easily.
lf it‘s difficult to rotate the clutch bell, your gear mesh is likely
too tight. Readjust the gear mesh, making sure to use a piece
of notebook paper between the gears. When set properly, the
paper should be tightly crinkled, but not ripped or punctured.
q. Troubleshooting guide
This troubleshooting guide has been provided to help you
diagnose and solve most problems that you may encounter
with your
CARSON CNB Buggy. Most problems encountered can be
solved by carefully following the problem-cause-solution
sections.
lf you cannot solve the problem using this troubleshooting
guide, please feel free to contact us using the
Customer Service Information on page 92.
Problem Cause Solution
If you‘re having a problem with the radio system:
Radio system does not
operate
1. Transmitter and/or receiver batteries are low Replace transmitter and/or receiver batteries
2. Batteries are installed incorrectly Check that the polarity of the batteries is correct
3. Receiver battery connector is loose Check that receiver battery connector is
plugged in and tight
Operating range is short 1. Transmitter antenna is retracted Extended transmitter antenna completely
2. Receiver antenna is not extended Extend receiver antenna completely
3. Receiver antenna is cut Return receiver to Hitec/RCD for repair
4. Transmitter and/or receiver batteries are low Replace transmitter and/or receiver batteries
Servos do not operate
normally
1. Transmitter and/or receiver batteries are low Replace transmitter and/or receiver batteries
2. Servo gear stripped or otherwise damaged Replace with new gear set
When engine is running,
radio system operates
erratically
1. Receiver crystal is loose Remove and reinstall the receiver crystal
2. Receiver battery connector is loose Check that receiver battery connector is tight
3. Damage to receiver after a crash Return to Hitec/RCD for repair
28GBCARSON Nitro Buggy CNB 204016
Problem Cause Solution
If you‘re having a problem with the Force 28 Nitro engine:
Engine does not start 1. Failed glow plug Replace glow plug with new one
2. Glow Starter not charged and/or faulty Fully charge glow starter and/or replace
3. Idle mixture screw set too lean Reset idle mixture to factory setting (p 17)
4. Old or contaminated fuel Replace with new fuel
5. Engine flooded with too much fuel Remove glow plug and expel fuel from cylinder
(p 17)
6. Air leak in fuel system and/or engine Replace fuel lines and/or tighten all engine bolts
Engine does not draw
fuel
1. Air leak in fuel system and/or engine Replace fuel lines and/or tighten all engine bolts
2. High speed needle valve fully closed Reset high speed needle valve to factory setting
(p 17)
3. Idle mixture screw set too lean Reset idle mixture to factory setting (p 17)
4. Fuel lines kinked Check and straighten fuel lines
5. Defective fuel tank Replace fuel tank
Engine has poor
performance
1. Failed and/or wrong type glow plug Replace with new recommended glow plug (p 7)
2. Old and/or wrong type fuel Replace with new recommended fuel (P4)
3. High speed needle valve set too rich Reset high speed needle valve to leaner setting
(p 17)
4. Idle mixture set too lean Set idle mixture richer (p 17)
5. Idle mixture set too rich Set idle mixture leaner (p 17)
6. Air leak in fuel system and/or engine Replace fuel lines and/or tighten all engine bolts
Engine overheats 1. Engine running too lean Richen high speed needle valve (p 17)
2. Body too restrictive Open larger vents in body to allow air to enter
and exit
3. Wrong type of fuel used Use fuel recommended only for R/C cars (p 6)
4. Engine not fully broken in Allow engine further break-in time (p 19)
Engine vibrates
excessively
Engine and/or engine mounts loose Tighten all engine and engine mounting bolts
Engine does not idle
down
1. Idle stop screw out of adjustment Adjust idle stop screw to factory setting (p 17)
2. Engine has developed an air leak Check and tighten all engine screws
3. One or more carburretor 0-rings damaged Replace carburretor 0-rings
EMS-Starter Does not work Check the battery
29CARSON Nitro Buggy CNB 204016
GB
Problem Cause Solution
If you‘re having a problem with the CNB Chassis:
Buggy pulls to one side 1. Steering trim out of adjustment Readjust trim to center both wheels (p 9)
2. Toe angle out of adjustment Readjust toe angle (p 22)
3. One wheel is hanging or has damaged bearing Remove wheel and clean bearing. Replace if
necessary
Brakes seem ineffective 1. Brake linkage out of adjustment Readjust brake linkage (p 21)
2. Brake disc(s) worn Replace affected brake disc(s)
Clutch does not engage 1. Clutch shoes damaged or worn Replace clutch shoes
2. Clutch bell damaged or worn Replace clutch bell
3. Clutch shoes glazed Remove glaze using fine sandpaper and
reinstall
Clutch does not
disengage
Clutch spring(s) worn or damaged Replace clutch springs
Buggy does not ”go“ 1. Stripped or damaged spur gear(s) Replace spur gear(s)
2. Stripped differential gear(s) Replace differential gear(s)
3. Driveshaft(s) slipping and/or broken Tighten grub screw and/or replace drive
shaft(s)
4. Outdrive cups slipping Tighten grub screw in outdrive cups
5. Clutch not engaging Check clutch assembly and repair or replace
6. Carburretor set too rich Lean high speed needle valve (p 17)
Suspension not smooth
or free
1. One or more shocks sticking Clean and/or rebuild the affected shock
2. Bent shock shaft Rebuild affected shock
3. Bent or otherwise damaged hinge pin Replace hinge pin
Shocks leaking oil 1. Shock seals worn Replace shock seals
2. Bent shock shaft Rebuild affected shock
2-speed transmission
shifts at too low a speed
Shift point not adjusted properly Readjust shift point to shift at a higher speed
(p 24)
2-speed transmission
shifts at too high a speed
Shift point not adjusted properly Readjust shift point to shift at a lower speed
(p 24)
Screws loosen and/or fall
out during use
Vibration under normal use Clean screw(s) and/or replace and use Blue
Lock-Tite to secure them into place
Steering sensitivity is
”sluggish“
Servo saver spring is set too loose Tighten servo saver spring – see below
lf your Buggy‘s steering seems sluggish or slow to react, the
servo saver spring could be too loose. To increase steering
response time, thread the servo saver adjustment ring up to
tighten the servo saver spring.
WARNING Tightening the servo saver spring increases the
chance of damaging the steering servo during a crash. Do so at
your own risk.
FOR MORE TIPS AND TROUBLESHOOTING SOLUTIONS CHECK OUT
www.carson-modelsport.de
Picture 37
Adjust spring tension
30DCARSON Nitro Buggy CNB 204016
Sehr geehrter Kunde
Wir beglückwünschen Sie zum Kauf Ihres CARSON RC-Modellautos, das nach dem heutigen Stand der Technik gefertigt
wurde.
Da wir stets um Weiterentwicklung und Verbesserung unserer
Produkte bemüht sind, behalten wir uns eine Änderung in technischer Hinsicht und in Bezug auf Ausstattung, Materialien und
Design jederzeit und ohne Ankündigung vor.
Aus geringfügigen Abweichungen des Ihnen vorliegenden
Produktes gegenüber Daten und Abbildungen dieser Anleitung
können daher keinerlei Ansprüche abgeleitet werden.
Diese Bedienungs- und Montageanleitung ist Bestandteil des
Produkts. Bei Nichtbeachtung der Bedienungsanleitung und
der enthaltenen Sicherheitsanweisungen erlischt der Garantieanspruch. Bewahren Sie diese Anleitung zum Nachlesen und
für die even tuelle Weitergabe des Modells an Dritte auf.
Garantiebedingungen
Für dieses Produkt leistet CARSON eine Garantie von 24
Monaten betreffend Fehler bei der Herstellung in Bezug auf
Material und Fertigung bei normalem Gebrauch ab dem Kauf
beim autorisierten Fachhändler. Im Falle eines Defekts während
der Garantiezeit bringen Sie das Modell zusammen mit dem
Kaufbeleg zu Ihrem Fachhändler.
CARSON wird nach eigener Entscheidung, falls nicht anders im
Gesetz vorgesehen:
(a) den Defekt durch Reparatur kostenlos in Bezug auf Material
und Arbeit beheben;
(b) das Produkt durch ein gleichartiges oder im Aufbau
ähnliches ersetzen; oder
(c) den Kaufpreis erstatten.
Alle ersetzten Teile und Produkte, für die Ersatz geleistet wird,
werden zum Eigentum von CARSON. Im Rahmen der Garantieleistungen dürfen neue oder wiederaufbereitete Teile verwendet
werden.
Auf reparierte oder ersetzte Teile gilt eine Garantie für die
Restlaufzeit der ursprünglichen Garantiefrist. Nach Ablauf
der Garantiefrist vorgenommene Reparaturen oder gelieferte
Ersatzteile werden in Rechnung gestellt.
Von der Garantie ausgeschlossen sind:
• Beschädigung oder Ausfall durch Nichtbeachten der Sicherheitsanweisungen oder der Bedienungsanleitung, höhere
Gewalt, Unfall, fehlerhafte oder außergewöhnliche
Beanspruchung, fehlerhafte Handhabung, eigenmächtige
Veränderungen, Blitzschlag oder anderer Einfluss von
Hochspannung oder Strom.
• Schäden, die durch den Verlust der Kontrolle über Ihr Fahrzeug entstehen.
• Reparaturen, die nicht durch einen autorisierten CARSON
Service durchgeführt wurden
• Verschleißteile wie etwa Sicherungen und Batterien
• rein optische Beeinträchtigungen
• Transport-, Versand- oder Versicherungskosten
• Kosten für die Entsorgung des Produkts sowie Einrichten
und vom Service vorgenommene Einstell- und Wiedereinrichtungsarbeiten.
Durch diese Garantie erhalten Sie spezielle Rechte, darüber
hinaus ist auch eine von Land zu Land verschiedene Geltendmachung anderer Ansprüche denkbar.
Konformitätserklärung
Hiermit erklärt CARSON Modelsport, dass sich dieses Modell
einschließlich Fernsteueranlage in Übereinstimmung mit den
grund legenden Anforderungen folgender EG-Richtlinien:
98/37 EG für Maschinen und 89/336/EWG über die elektromagnetische Verträglichkeit und den anderen relevanten
Vorschriften der Richtlinie 1999/5/EG (R&TTE) befindet.
Die Original-Konformitätserklärung kann angefordert werden.
Bedeutung des Symbols auf dem Produkt, der
Verpackung oder Gebrauchsanleitung: Elektrogeräte
sind Wertstoffe und gehören am Ende der Laufzeit
nicht in den Hausmüll! Helfen Sie uns bei Umwelt-
schutz und Recourcenschonung und geben Sie
dieses Gerät bei den entsprechenden Rücknahmestellen ab.
Fragen dazu beanwortet Ihnen die für Abfallbeseitigung zuständige Organisation oder Ihr Fachhändler.
Wir wünschen Ihnen viel Spaß mit Ihrem CARSON
Modellauto und jederzeit gute Fahrt!
Vor dem Gebrauch Ihres neuen Modells lesen Sie bitte dieses Handbuch
sorgfältig durch!
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