
1:10 Scale Nitro 4 Wheels Drive Touring Car Kit
TRUE SEDANTRUE SEDAN
TRUE SEDANTRUE SEDAN
INSTRUCTION MANUALINSTRUCTION MANUAL
OFNA RACING
22692 Granite Way, Ste. B, Laguna Hills, Ca. 92653
TEL: (949) 586-2910
FAX: (949) 586-8812
www.ofna.com

REQUIRED FOR OPERATION
THINGS NEED BESIDES THE KIT
.12 OR .15 ENGINE
Glow Fuel
20%
Fuel Bottle
# 10160 - large 16oz
# 10161 - large Auto Stop
# 10162 - small 8oz
Glow Plug Heat with Battery & Charger
# 10227....$$19.95
(please note OFNA Glow Heats available)
.12 RED HEAD ENGINE # 50121
FEATURES EXCELLENT POWER
AT LOWER PRICE!
Note: The engine may not include in kit.
RADIO CONTROL UNIT
Note: Careful read the instruction manual of your
2 channel radio controller before using.
SUITABLE SERVO SIZE
m
-41m
36mm
15mm - 21mm
29mm - 42mm
On-Road Starter Box
# 10256 - 1/10 scale Starter Box
# 10257 - 1/10 scale Starter Box w/ Panel
Add-on
# 92571 - Power Panel Glow Heater
# 92572 - Cable for Glow Plug
Radio must be set at neutral position
before installing in the kit.
SEQUENCE TO SET NEUTRAL
1111
12
13
12V Battery for Starter Box
(must have)
AA Batteries ( 12 pcs ) for radio
Install AA batteries in Radio.
Extend the antenna.(Transmitter)
Install batteries into Car receiver .
After installing the battery, connect the
battery box.
Extend the antenna. (Receiver)
Set the trim-leved at center.
Turn on the switch. (Transmitter)
Turn on the switch. (Receiver)
Make sure the servos are in command.
When the operation stick is in neutral,
servo horns must be in neutral as
will.
*Adjustment can be made by re installing the servo horn.
Turn off the switch. (Receiver)
Turn off the switch. (Transmitter)
Retract the antenna. (Transmitter)
TOOLS NOT INCLUDED IN KIT
Cutter
Phillips Type Screw Drivers ( L )
Phillips Type Screw Drivers ( S )
Needle Nose Pliers
Knife
Curved Scissors
Precision Caliper
Brush
Cross Wrench
# 17109
Instant Cemment
Masking Tape
Paints

READ THIS BEFORE RUNNING
Running a nitro kit is fun and easy, but to make this a safe rusting.
and good experience you must observe a few rules. This
kit is extremely fast, easily over 40MPH, and can seriously
injure someone if you are not careful.
Where to run car?
• Any running area you choose must be dry. Do not run
car near any water.
• Do not run on public streets. It is very easy to have the
car run over or damaged by hitting the curb.
• Do not operate car in tight confined places. The car is
very fast and will easily hit something.
• Do not run near children, people or animals.
very fast and will too easily hit someone.
• Due noise, you will want to consider the surrounding
area when operating the car.
• Do not operate the car at night. You will not be able to
drive it without hitting something.
• Do not operate the car indoors. Engine exhaust is not
healthy.
Glow Fuel
• Glow fuel is poisonous!
• Glow fuel is flammable!
• Do not leave in fuel bottle with lid off at any time. engine if left in tank.
• Don use any fuel other than glow fuel in this engine.
The car is
• Clear oil and dirt from chassis with a degreaser.
Precautions
• Hot Parts - The pipe, manifold, engine and head are very
hot and will cause burns.
• Rotating Parts - Keep hands away from the drive train,
wheels, and engine when engine is running.
• Radio - Check batteries life before running the car. If
radio does not have full control of the car with steering
and/or throttle/brake do not run until corrected. Failure to
correct this will result in possible injury and damage to the
car or property.
• Glow fuel - Do leave the glow fuel unattended with the lid
off. Fuel contains Methanol and Nitro Methane and is
flammable and poisonous.
Store fuel in cool ventilated location. Refer the glow fuel
label for additional precautions.
• Car Fuel tank - Never store fuel in car tank, it will ruin the
First Time Starting the Engine
Caution! When starting engine make sure the following is
observed.
• Set engine Master needle to 3 turns (rich setting)
• Do not do this alone, get an experienced friend to help at
first.
• Fill fuel tank, try not to spill fuel. Do not spill fuel on
receiver
• Hold car off the ground, so it will not runaway when first
starts
• Turn on Radio and check the leakage before starting
engine.
• Turn on car receiver battery switch.
• Always have an air filter on the carburetor to keep dirt
out.
Engine Break-in
• See Engine Page.
Emergency Stopping Engine When Running
• Remove air filter and cover carb. intake.
• Squeeze fuel line and hold until engine stops.
• With a rag, cover exhaust outlet.
Storing Car After Running
• Remove fuel from tank and fuel lines
• Turn off radio in car
• Put a few drops of after run in engine to keep it from

ENGINE BREAK-IN AND TUNNING
(BREAK-IN THE ENGINE BEFORE DRIVING THE CAR!)
• Choose a wide clear outdoor location with low dirt and dust.
• Set the car on box or holder with wheels off the ground.
• Turn on radio and car. Make sure throttle is at idle position.
• Fill fuel tank and set master engine needle.
• Prime fuel line and Heat glow plug before pull starting engine.
• When started, let engine fast idle for two tanks of fuel.
TUNING AFTER BREAK-IN
Close master needle by turning clockwise until it stops.
Then open needle by turning counterclockwise 3 turns
(rich setting).
When running car, adjust carb with 1/8 clockwise turns,
slowly leaner, until the top speed good. Check engine
temp, if possible, for no more 250 degrees.
Adjust low end needle for best throttle response. Use only
small turns. From idle, give it full throttle, if throttle is slow
lean out needle until good.
Lean
Rich
Adjust barrel stop so it will not close, accept for a small gap.
This gap will be the idle setting. You will notice the idle will
increase with a wide gap.
Idle adjuster screw.