OFNA Racing Mutilator User Manual

REV 5-7-07

WWW.OFNA.COM

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. 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 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! label for additional precautions.

• Do not leave in fuel bottle with lid off at any time.

• Do not use any fuel other than glow fuel in this engine. • 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) • DAMAGE DUE CAR RUN AWAY IS NOT A WARRANTY

• 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 linkage before starting engine.

• Turn on car receiver battery switch.

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

The car is very fast

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 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

engine if left in tank.

• Always turn off the car BEFORE turning off radio.

ISSUE.

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

FAILURE TO NOT READ AND

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 rusting.

FOLLOW BREAK-IN ENGINE INSTRUCTIONS WILL VOID WARRANTY!

RTR KITS - REQUIRED FOR OPERATION

THINGS NEEDED

Glow Fuel

20%

AA Batteries ( 12 pcs )

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..

• #10162- Bottle, 250cc

• #10219 - Red “D” size glow heater

10195

7.2 Volt Over-nite Charger

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

• Radio TX needs (8) eight AA batteries.

• Shaft Starter requires a 7.2Volt battery pack and charger OFNA #10195

• Car needs (4) four AA Ni-cad batteries 2000Mah or higher or (4) 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..

10214 Rec’v Bat. Over-nite Charger

#10212 Rec’v Bat. NiHm Hump Pack, see charger 10214.

Recommended Option: You may want to upgrade the car battery pack to a Ni-Cad or NiHm 5 cell type(600AE). This will give more run time. OFNA #10212 1400NiMh Hump Pack and NiHm Battery Charger #10214

TOOLS NOT INCLUDED IN KIT

Cross Wrench #17109 $3.95

Phillips Type Screw Drivers ( L )

Phillips Type Screw Drivers ( S )

Glow Plug & 17MM Cross Wrench #10801 $6.95

Cutter

Curved Scissors

Precision Caliper

INCLUDED WITH KIT

Diff. Oil

Instant Cemment

Shock Oil

1000 3000 5000

Masking Tape

1.5mm Allen Wrench

2mm Allen Wrench

Needle Nose Pliers

Knife

Brush

Paints

2.5mm Allen Wrench

4mm'5mm Allen Wrench

1

ASSEMBLY OF THE FRONT AND REAR DIFF.

Step1

40006 Cap Joint

36053 8X16mm Ball Bearing

40003 Diff. Case

Step2

40004Diff. Gear (Large)

Builds two differentials for front and rear.

400102.5X13.8mmPin

40009P6-Oring

49032 43T Large Bevel Gear

40010 .......X2

2.5X13.8mm Pin

94034

4X4mm ........X1

Set Screw

40009 ........X2 P6 O-Ring

30779 ........X4 4X10mm Washer

94020

3X12mm ........X4 Flat Head Hex Screw

940344x4mmSet Screw

400102.5X13.8mmPin

Step3

30779 4X10mm Washer

40004 Diff. Gear (Small)

40009 P6-Oring

40004Diff. Gear (Large)

30773 4mm Cross Pin

*Apply diff. gear grease to the differential, during assembly . *Fill the diff. case to approx. 80% with grease.

Step4

40011 Diff. Gasket

36053 8X16mm Ball Bearing

94020 3X12mm Flat Head Hex Screw

40006 Cap Joint

2

ASSEMBLY OF THE CENTER DIFF.

40005

Step1

40010 .......X2

2.5X13.8mm Pin

94034

4X4mm .......X1 Set Screw

40009 .......X2 P6 O-Ring

30779 ........X4 4X10mm Washer

Break Cap Joint

Step3

94034 4x4mm Set Screw

40004 Diff. Gear (Small)

36053 8X16mm Ball Bearing

40010

2.5X13.8mm

307794X10mmWasher

40003Diff. Case

30773 4mm Cross Pin

40009P6-Oring

Step2

40004 Diff. Gear (Large)

40004Diff. Gear (Large)

40010

2.5X13.8mm Pin

Step4

40009P6-Oring

40011 Diff. Gasket

40134 62T Spur Gear

360538X16mmBall Bearing

40005 Break Cap Joint

94020

3X12mm ........X4 Flat Head Hex Screw

*Apply diff. gear grease to the differential, during assembly. *Fill the diff. case to approx. 80% with grease.

1

94020 3X12mm Flat Head Hex Screw

3

ASSEMBLY OF THE FRONT GEAR CASE

94036

5X4mm ......X1 Set Screw

94011

4X16mm ......X2 Hex Screw

40024 ......X2 13X16X0.2mm Shin

40024 13X16X0.2mm Shim

94011 4x16 Hex Screw

Adjust the backlash with the shims.

40017 Gear Case

49012 13T Small Bevel Gear

36053 8X16mm Ball Bearing

40024 13X16X0.2mm Shim

36053 8X16mm Ball Bearing

40017 Gear Case

94036 5X4mm

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Set Screw

36730 Cap Joint

4

ASSEMBLY OF THE FRONT ARMS HOLDER

40015 Front Lower Arm Holder(Rear/Plastic)

40015 Front Upper Arm Holder (Rear/Plastic)

94027 4X16mm Flat Head Hex Screw

94027

4X16mm ......X4 Flat Head Hex Screw

94014 4X45mm .... ..X2 Hex Screw

94014 4X45mm Hex Screw

40022 Front Lower Arm Holder

2

5

ASSEMBLY OF THE FRONT SHOCK STAY

40117 Body Post

94004

3X12mm .......X4 Hex Screw

94010

4X12mm .......X4 Hex Screw

94012

4X20mm .......X2 Hex Screw

35313

M 3 ........X2 Nylon Nut

35314

M4 ........X2 Nylon Nut

35313 3mm Nylon Nut

40117 Body Post Mount

94010 4X12mm Hex Screw

94012 4X20mm Hex Screw

40116 Alum Front Shock Stay

40531 Shock Ball End Post

94004 3X12mm Hex Screw

90018 3X25mm Screw

35314 4mm Nylon Nut

90018

3X25mm ........X2 Screw

ASSEMBLY OF THE FRONT KNUCKLE ARMS

6

40135 Universal Joint (Front)

40103 Alloy front Knuckle Arm

36055 .......X2

2.5X17mm Pin

94036

5X4mm .......X2 Set Screw

7

ASSEMBLY OF THE FRONT LOWER ARMS

(Left)

36053 8X16X5mm Ball bearing

94004 3X12mm Hex Screw

36055

2.5X17mm Pin

94036 5X4mm Set Screw

36053 8X16X5mm Ball bearing

36054 Alum. Wheel Hub 8mm

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94010 4X12mm Hex Screw

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36053 8X16X5mm Ball bearing

94036 5X4mm Set Screw

36055

2.5X17mm Pin

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40103 Alloy front Knuckle Arm (Right)

40135 Universal Joint (Front)

36870

4X10mm .......X2 Set Screw

40104 10mm Ball and Socket

40102 Front Lower Arm (Right)

36870 4X10mm Set Screw

3

36870 4X10mm Set Screw

40102 Front Lower Arm (Left)

40104 10mm Ball and Socket

36870 4x10mm Set Screw

*A 4x10mm set screw is used to adjust ride-height.

8

ASSEMBLY OF THE FRONT UPPER ARMS

Approx. 11mm

36860 .......x2 5X35mm Turnbuckle

9

ASSEMBLY OF THE FRONT SUSPENSION ARMS

40101 Front Upper Arm(Left)

36860 5X35mm Turnbuckle

40101 Front Upper Arm Ball End

40104 10mm Ball and Socket

40101 Front Upper Arm Ball End

40104 10mm Ball and Socket

36860 5X35mm Turnbuckle

40101 Front Upper Arm(Right)

Assembly for both right and left side

90021 3mm E-Ring

90020

2.5mm .......X4 E-Ring

40104

4X16mm .......X2 Cap Screw

40023 Lower Arm Shaft(4mm)

90021 3mm E-Ring

Insert the front drive shaft into cap joint before assembly the front lower arm.

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40104 4X16mm Cap Screw

90020

2.5mm E-Ring

36170 Arm Shaft(3mm)

90020

2.5mm E-Ring

40104 4X16mm Cap Screw

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10

CLIP IN THE CASTER ADJUSTER

40101 Caster Adjuster

Assembly for both right and left side

*Use adjuster to change the caster angle.

A

B

Caster Adjuster

*Caster angle will become bigger.

A

B

*Caster angle will become less.

A B

4

11

ASSEMBLY OF THE FRONT STABILIZER

* Makes two stabilizer rods for use.

30341 Stabilizer Ball

40029 Stabilizer Ball End

94035 3X8mm Set Screw

40199 Stabilizer Ball End

Assembly for both right and left side

30403 6mm Ball End

94035 3X8mm Set Screw

94033 3X3mm Set Screw

94003 3X10mm Hex Screw

94005 3X16mm Hex Screw

24

12

ASSEMBLY OF THE SERVO SAVER

* Take the plastic bushing from servo saver plastic parts tree.

......X2

......X4

......X2

40032 Servo Saver Connecting Plate

40037 Steering Plat Hex Screw

40017 Stabilizer Mount Plastic

94003 3X10mm Hex Screw

*Do not tighten 40037 Hex Screw too tight.

40031 4X8mm Plastic Flange Bushing

40037Steering Plat Hex Screw

40017 Stabilizer Mount Plastic

94005 3X16mm Hex Screw

40019 Stabilizer

40035 Servo Saver Alum. Tube

40031 Servo Saver Horn A

40031Servo Saver Horn B

94033 M3X3 Set Screw

94009 4X10mm Hex Screw

94033 M3X3 Set Screw

94004 3X12mm Hex Screw

940094X10mmHex Screw

40030 Front plate

94004

3X12mm .........X1 Hex Screw

94009

4X10mm .........X2 Hex Screw

40031PlasticBushing

40031Servo Saver Horn C

40031PlasticBushing

40033 Servo Saver Spring(Black)

40034 Servo Saver Spring Tension Adjuster

40036 Servo Saver Post

40018 Center Chassis Bracer (Front)

5

13

ASSEMBLY OF THE STEERING RODS

40038 7mm Ball

94021

3X15mm ........X2 Flat head Hex Screw

94022

3X18mm ........X2 Flat head Hex Screw

94009

4X10mm ........X2 Hex Screw

94041

3mm ........X2 Nylon Nut

ASSEMBLY OF THE FRONT BUMPER

14

94004 3X12mm Hex Screw

36700 7mm Steering Ball End

40006 Turnbuckle

36700 7mm Steering Ball End

40137 Front Bumper(B)

40039 3mm Tapper Washer

Approx 34.8mm

94041 3mm Nylon Nut

40038 7mm Ball

94022 3X18mm Flat head Hex Screw

40137

Front Bumper(D)

94021 3X15mm Flat head Hex Screw

40039 3mm Tapper Washer

Front Bumper(C)

40137

94009 4X10mm Hex Screw

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94021 3X15mm Flat head Hex Screw

Screw

Cement

40039 3mm Tapper Washer

94003 3X10mm Hex Screw

94003

3X10mm ........X6 Hex Screw

94004

3X12mm ........X3 Hex Screw

ASSEMBLY OF THE REAR GEAR CASE

15

94011

4X15mm .......X2 Hex Screw

94011 4X15mm Hex Screw

40024 13X16X0.2mm Shim

94004

Hex Screw

3X12mm

40137Front Bumper(A)

40137

Front Bumper(D)

40676 Bumper Washer

49012 Small Bevel Gear

36053 8X16mm Ball Bearing

40017 Gear Case

94004 3X12mm Hex Screw

36053 8X16mm Ball Bearing

40024 ........X2 13X16X0.2mm Shim

4002413X16X0.2mmShim

40017Gear Case

6

ASSEMBLY OF THE REAR ARMS HOLDER

16

94036

5X4mm .......X1 Set Screw

40025

94011 4X15mm Hex Screw

Rear Lower Arm Holder

94003

3X10mm .......X1 Hex Screw

94009

4X10mm .......X2 Hex Screw

94011

4X15mm .......X2 Hex Screw

.......X2

94030 4X45mm Flat Head Hex Screw

17

ASSEMBLY OF THE REAR SHOCK STAY

94036 5X4mm Set Screw

36730 Cap Joint

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94030 4X45mm Flat Head Hex Screw

40015 Rear Arm Holder

90018 3X25mm Cap Screw

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94003 3X10mm Hex Screw

40027 Win Stay Mount

94009 4X10mm Hex Screw

40137 Body Post Plastic

94003

3X10mm .......X1 Hex Screw

94004

3X12mm .......X2 Hex Screw

90018

3X25mm .......X2 Cap Screw

40027 Rear Body Post

94003 3X10 Flat Head Hex Screw

40531 Shock Ball End Post

94004 3X12mm Hex Screw

94003 3X10mm Hex Screw

40531 Shock Ball End Post

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40026 Rear Shock Stay

90018 3X25mm Cap Screw

94019

3X10 .......X2 Flat Head Hex Screw

7

18

ASSEMBLY OF THE WING STAY

40027 Wing Stay

Step1

Post

40027 Wing Stay(Left)

40027 Wing Mount

94007 3X20mm Hex Screw

Step2

40027 Wing Stay(Right)

40027 Wing Mount

94005 3X16mm Hex Screw

94007 3X20mm Hex Screw

94005

3X16mm .......X2 Hex Screw

.......X5

94007 3X20mm Hex Screw

94011

4X16mm .......X6 Hex Screw

94042

4mm .......X2 Nylon Nut

94011 4X16mm Hex Screw

Step3

94005 3X16mm Hex Screw

40018 Center Chassis Bracer(Rear)

94007 3X20mm Hex Screw

94042 4mm Nylon Nut

94011 4X16mm Hex Screw

94042 4mm Nylon Nut

Step4

94011 4X16mm Hex Screw

19

ASSEMBLY OF THE REAR WHEEL HUBS

94036

5X4mm .....X1 Set Screw

36870

4X10mm .....X1 Set Screw

90020

2.5mm ......X2 E-Ring

36055 ......X1

2.5X16.8mm Pin

36053 8X16X5mm ball baring

36082 Rear Wheel Axis Shaft

36055

2.5X16.8mm Pin

36081 Wheel Rear Hub

94036 5X4mm Set Screw

36054 CNC Alum. Wheel Hub 8mm

36053 8X16X5mm ball baring

*A 4x10mm set screw is used to adjust ride-height.

8

36870 4x10mm Set Screw

90020

2.5mm E-Ring

36870 4X10mm Set Screw

36170 3mm Arm Shaft

Assembly for both right and left side

40102 Rear Lower Arm

36081 3mm Plastic Washer

90020

2.5mm E-Ring

36081 3mm Plastic Washer

20

ASSEMBLY OF THE REAR SUSPENSION ARMS

90021 3mm E-Ring

Assembly for both right and left side

90021

3mm .......X4 E-Ring

21

ASSEMBLY OF THE REAR SUSPENSION ARMS

Step1

40065 Upper Arm Plastic Rod End

94041

3mm .......X4 Nylon Nut

94006

3X18mm .......X2 Cap Screw

94008

3X25mm .......X2 Cap Screw

ASSEMBLY OF THE REAR STABILIZER

22

36850 7mm Ball

36861 Turnbuckle

Approx. 32.2mm

40023 4mm Lower Arm Shaft

40065 Upper Arm Plastic Rod End

36850 7mm Ball

Step2

30341 Stabilizer

94006 3X18mm Cap Screw

40029 Stabilizer Ball End

40107 Rear Driver Shaft(104mm)

94008 3X25mm Cap Screw

Assembly for both right and left side

94041 3mm Nylon Nut

Assembly for both right and left side

94033

3X3mm ........X2 Set Screw

94035

3X8mm ........X2 Set Screw

94003

3X10mm ........X4 Hex Screw

94005

3X16mm ........X2 Hex Screw

94005 3X16mm Hex Screw

94003 3X10mm Hex Screw

40017 Stabilizer Mount Plastic

9

94035 3x8mm Set Screw

30403 6mm Ball End

40029 Stabilizer

94033 3X3mm Set Screw

40199 Stabilizer

94033 3X3mm Set Screw