OFNA Racing Picco Offroad User Manual

HI PerFORMANCE 1/8 OFF-ROAD NITRO BUGGY.

Instruction
manual

OFNA 7 VANDERBILT, IRVINE, CA 92618 PH. [phone]

RTR KITS - REQUIRED FOR OPERATION

THINGS NEEDED

AA Batteries ( 12 pcs )

#10202
1700 Ni-Mh Hump Pack,

You will need to buy a few items to start the engine and run the car.

• Use 20% nitro CAR fuel. Do not use airplane or heli fuels, they will
over heat engine.

• Buy LONG glow plugs, like OFNA/PICCO Plug (#51007 or 51008).
Use plugs WITHOUT idle bar. Do NOT use plugs, like the MC-59 or
OS-8

In your box you will find..

• #10163 - Bottle, spout top

• #10219 - Red “D” size glow heater

You need to get batteries for the radio transmitter and the car receiver packs.

• Radio TX needs (8) eight AA batteries.

• Car needs (4) four AA Alkaline., Alkaline type batteries will work, but braking will be
reduced and 30 minute life. The best for car, is to use a 5 cell hump receiver pack for
increased voltage and longer life..

Recommended Option:

You may want to upgrade the car battery pack to a Ni-Cad or Ni-Mh 5 cell
type(600AE). This will give more run time. OFNA #10202 1700Ni-Mh Hump Pack
and Ni-Mh Battery Charger #10214

10214
Over-nite
Charger

TOOLS NOT INCLUDED IN KIT,
BUT NEEDED TO MAINTAIN YOUR CAR.

Phillips Type Screw Drivers ( L )

Phillips Type Screw Drivers ( S )

Needle Nose Pliers

Knife

Instant Cement

Cutter

Curved Scissors
#91009 $5.95

Grease

Cross Wrench
#17109 $3.95

Glow Plug & 17MM Cross Wrench
#10801 $6.95

MUST READ THIS BEFORE RUNNING

Running a nitro kit is fun and easy, but to make this a safe • Clean oil and dirt from chassis with a degreaser like
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 or wet dirt.

• 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 people or animals.
and will too easily hit someone.

• Due to 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. label for additional precautions.

• Do not use any fuel other than glow fuel in this engine.

First Time Starting the Engine

Caution! When starting engine make sure the following is
observed. • Always turn off the car BEFORE turning off radio.

• Set engine Master needle to 3 turns (rich setting)

• Do not do this alone, get an experienced friend to help at • DAMAGE DUE CAR RUN AWAY IS NOT A WARRANTY
first. ISSUE.

• 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 linkage before starting
engine.

• Turn on car receiver battery switch.

• Always have an air filter on the carburetor to keep dirt
out of engine.

Engine Break-in

• See Engine Page.

The car is very fast

Simple Green.

Precautions

• This kit is not a toy. Always run car with a second
person as a spotter and pitman.

• 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 not leave the glow fuel unattended with
the lid off. Fuel contains Methanol and Nitro Methane
both are flammable and poisonous.

•Store fuel in cool ventilated location. Refer the glow fuel

• Car Fuel tank - Never store fuel in car tank, it will ruin the
engine if left in tank.

IF YOU DO NOT BREAK-IN ENGINE
CORRECTLY, MAINLY AT LOW RPM,
YOU WILL BREAK THE CONNECTING
ROD!

FAILURE TO NOT READ AND
FOLLOW BREAK-IN ENGINE

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
rusting.

INSTRUCTIONS WILL VOID
WARRANTY!

CHECK RADIO SETTING,
LINKAGE BEFORE STARTING.

THINGS REQUIRED FOR OPERATION

OPTION PART

3.5 cc (21 Class) ENGINE
REAR EXHAUST

OPTION THINGS NEED BESIDES THE KIT

OFNA/Picco
P7-EVO3
#51216

RADIO CONTROL UNIT

Note: Carefully read the instruction manual of your
2 channel radio controller before using.

SUITABLE SERVO SIZE

4 m

- 1m

m

6m

3

15mm - 21mm

29mm - 42mm

Bottle’s with spout
# 10160 - large 500cc
# 10161 - large 500 ccAuto Stop
# 10162 - small 250cc
# 10164 - CNC spout 500CC
# 10167 - CNC spout 800CC

Off-Road Starter Box, 12V motor
# 10250 - 1/8 scale Starter Box
# 10253 - 1/8 scale Starter Box w/ Panel
Off-Road Starter Box, two 550 motors
# 10248 - 1/8 scale Starter Box
# 10249 - 1/8 scale Starter Box,RTR
Optional Parts
# 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

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-lever 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 well.
*Adjustment can be made by re­ installing the servo horn.

1111

Turn off the switch. (Receiver)

Turn off the switch. (Transmitter)

12

13

Retract the antenna. (Transmitter)

Glow Plug Heat with Battery & Charger

# 10227....$$19.95

(please note OFNA Glow Heats available)

12V Battery for Starter Box
(must have)

AA Batteries ( 12 pcs ) for radio

More Optional Parts . . .

#10201
1700 NimH Battery Hump
Pack .. $34.95

# 10214 NiMh Battery Pack
Charger.. $7.95

# 51007 or 08 OFNA/Picoo
Glow Plug .. $13.95

TOOLS NOT INCLUDED IN KIT

Cutter

Phillips Type Screw Drivers ( L )

Curved Scissors

Brush

Phillips Type Screw Drivers ( S )

Needle Nose Pliers

Glow Plug & 17MM Cross Wrench

Knife

#10801 $6.95

Cross Wrench
#17109 $3.95

Instant Cement

Masking Tape

Paints

Grease

INCLUDED WITH KIT

7mm and 5.5mm
Hex Wrench

5mm
Hex Wrench

3mm
Hex Wrench

2.5mm
Hex Wrench

1.5mm
Hex Wrench

PLASTIC PARTS FOR USE

40047
RECEIVER BOX

40020
REAR LOWER ARM

36081

40046
STONE GUARD

UPRIGHTREAR

36901
FRONT KNUCKLEARM ARM

40003
DIFF. CASE

40202

LOWER ARMFRONT

40017
GEAR BOX

PLASTIC PARTS FOR USE

40040
CENTER DIFF. MOUNT

40094
FRONT UPPER ARM

40027
WING STAY

40031
SERVO SAVER

16015
WING

40018 / 40029
CHASSIS BRACE

SYMBOL USED THROUGHOUT THE INSTRUCTION MANUAL

Degrease With
Motor Spray

Apply OilApply Screw

BAG

Sr
Ceme t

w

e c

n

Parts Bag Used

Cement

Oil

Do Not
Over Tighten

Apply
Grease

Do Not
Over Tighten

Apply Grease

Tighten

1:1

Tighten

True-To-Scale

1:1-ì¤o¹Ï

Ensure
Free
Movement

Rotate
Direction

Ensure Free
Movement

Clockwise
Rotation

Contact
Adhesive

Rotate
Direction

Contact Adhesive

Anti-clockwise
Rotation

1

ASSEMBLY OF THE FRONT AND REAR DIFF.

Builds two differentials for front and rear.

Step 1

94034
4x4mm
Set Screw

40009
P6 O-Ring

40010

2.5x13.8mm Pin

36053
8x16mm Ball Bearing

2

ASSEMBLY OF THE FRONT AND REAR DIFF.

30776
4x10mm Washer

.....x2

.....x4

.....x4

.....x4

.....X8

40006

Oil

Step 1 Step 2

36053

30773

40003

40513

4x4 mm

40010

40009

30776

40513

40513

Step 2

3x12mm

40009

49032

40010

Tighten

Oil

36053

40006

Builds two differentials for front and rear.

Tight the diff screws in this order.

1

3

94020
3x12mm

Flat Head Hex Screw

30773
4mm
Cross Pin

3

ASSEMBLY OF THE CENTER DIFF.

94034
4x4mm
Set Screw

40009
P6 O-Ring

40010

2.5X13.8MM PIN

.....X8

.....X4

Step 1 Step 2

.....x1

.....x2

.....x2

Oil

40005

36053

4x4mm

40010

40003

40513

40513

40011

i

ff i

.

O lD

*Put the Diff. Oil #3000 for front and the #1000 for rear
*Fill the Diff. case to approx. 80% with the Diff. Oil

40010

40009

40001

4

36053

2

Oil

36053
8x16mm Ball Bearing

.....x2

40009

40005

1

4

ASSEMBLY OF THE CENTER DIFF.

Step 1 Step 2

3x12mm

30776
4x10mm Washer

94020
3x12mm

Flat Head Hex Screw

30773
4mm
Cross Pin

5

ASSEMBLY OF THE FRONT GEAR CASE

94036
5x4mm Set Screw

94027
4x16mm Flat Head Screw

.....x4

....4

.....X2

.....x1

.....X4

40024
13x16x0.2mm Shim

.....x2

4x16mm

94011
4x16mm Hex Screw

.....x2

30773

Step 1

40513

40024

30776

Apply
Grease

49012

36053

S

C

cw

r

e

e

e

nm

t

40017

Step 2

Tighten

40011

Dif

5x4mm

36053

f

Tight the diff screws in this order.

1

4

.

Oi

l

Use 5000 weight diff. oil in the
center.
Fill the Diff. Case to approx. 80%
with the Diff.Oil.

30080

3

2

4x45mm

36053
8x16mm Ball Bearing

94014
4x45mm Hex Screw

6

ASSEMBLY OF THE FRONT SHOCK STAY

94042
4mm
Nylon Nut

94004
3x12mm
Hex Screw

94010
4x12mm
Hex Screw

94011
4x16mm
Hex Screw

41009
3x28mm
Cap Screw

.....x2

.....x2

.....x2

.....x2

.....x2

.....x2

.....x2

Step 1 Step 2

49047

41010

41009

41010

49048

40017

40024

41009

4x16mm

4x12mm

3x12mm

4x16mm

4x16mm

40015

40015

4mm
Nylon Nut

4mm
Nylon
Nut

2

7

ASSEMBLY OF THE FRONT LOWER ARMS

90021
3mm
E-Ring

36870
4x10mm
Set Screw

.....x4

.....x2

Assembly for both right and left side.

3mm

4x10mm

8

ASSEMBLY OF THE FRONT UPPER ARMS

90020

2.5mm

E-Ring

.....x4

2.5mm

3mm

40202

40524

Assembly for both right and left side.

2.5mm

40094

40094

36170

9

ASSEMBLY OF THE KNUCKLE ARMS

Step 1

94034
4x4mm
Set Screw

36055

2.5x16.8mm Pin

36053
8x16mm Ball Bearing

36903
14mm Steering Ball

.....x2

.....x2

.....x4

.....x4

Do Not
Over Thigten

36904

* L for left handside.

36903

36905

36904

36905

L

36903

40094

Assembly for both right and left side.

36901

Step 2

36053

30656

Sc

r

e

Ce

w

me

nt

4x4mm

36055

Ensure
Free
Movement

34053

36053

3

10

ASSEMBLY OF THE FRONT SUSPENSION ARMS

* Insert the drive shaft
before assembling the
knuckle arm.

11

ASSEMBLY OF THE FRONT STABILIZER

Assembly for both right and left side.

Assembly for both right and left side.

94035
3x8mm
Set Screw

30403
6mm Ball

94005
3x16mm
Hex Screw

12

ASSEMBLY OF THE FRONT STABILIZER

94033
3x3mm
Set Screw

94019
3x10mm
Flat Head Hex Screw

.....x2

.....x2

.....x2

.....x4

.....x2

40019

3x3mm

Screw
Cement

3x16mm

Makes two rods for left and right
hand-side.

40029

30341

30403

Sc

r

Ce

ew

m

et

n

3x3mm

3x8mm

40029

8mm

3x10mm

3x3mm

40018

3x3mm

4

Ensure
Free
Movement