OFNA Racing Mutilator Power Start User Manual

VER. 12-04-2008

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 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 TO CAR RUN AWAY IS NOT A

• 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 Not 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.

WARRANTY 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 Plug (#51009).
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

51009 OFNA GLOW PLUG #3 RTR

#10202 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

Glow Plug & 17MM Cross Wrench

#10801 $6.95
Cross Wrench
#17109 $3.95

Phillips Type Screw Drivers ( L )

Phillips Type Screw Drivers ( S )

Cutter

Curved Scissors

91009 $5.95

Precision Caliper

Instant Cemment

Masking Tape

INCLUDED WITH KIT

1.5mm Allen Wrench

2mm Allen Wrench

Needle Nose Pliers

2.5mm Allen Wrench

Hobby Knife

4mm'5mm Allen Wrench

PLASTIC PARTS FOR USE

40017
GEAR BOX

40140
FRONT & REAR LOWER ARM

40003
DIFF. CASE

40536
FRONT C HUB

40015
ARM HOLDER

40540
REAR UPPER ARM & REAR WHEEL HUB

30802
THROTTLE LINKAGE

40015

FRONT UPPER ARM

40027
WING STAY

PLASTIC PARTS FOR USE

40031
SERVO SAVER

40040
CENTER DIFF. MOUNT

40541
RECEIVER BOX

40018/40029
CENTER BRACER

40137
BUMPER

40643
SHOCK PLASTIC BALL END

40643
Shock Plastic
Ball End
(Short)

40643
Shock Plastic
Ball End
(Long)

41008
SHOCK HOLDER

40643
Shock Cap
Washer

1

1

ASSEMBLY OF THE FRONT AND REAR DIFF.

Step 1 Step 2

Builds two differentials for front and rear.

40010

2.5x13.8mm
Pin

94034
4x4mm
Set Screw

40009
P6 O-Ring

30776
4x10mm
Washer

........x4

........x2

........x4

........x8

40006

Step 3

30776

4x4mm

40513

Oil

40010

36053

30773

40003

iff. O

40009

D

40010

40513

40513

Tighten

Step 4

3x12mm

il

40011

40009

49032

36053

Fill the diff oil just level with the
top of the satellite gears.

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80%

Tighten the diff screws in this order.

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1

Oil

40006

3

94020
3x12mm
Flat Head
Hex Screw

2

ASSEMBLY OF THE CENTER DIFF.

40010

2.5x13.8mm
Pin

94034
4x4mm
Set Screw

40009
P6 O-Ring

........x8

Step 1 Step 2

Oil

40005

........x2

4x4mm

........x1

........x2

Step 3 Step 4

30776

40513

40010

36053

30773

40003

40009

40513

40513

40010

40009

4

40134

36053

2

Oil

40005

30776
4x10mm
Washer

94020
3x12mm
Flat Head
Hex Screw

........x4

........x4

D f

Tighten

i

f .

Oi

l

40011

3x12mm

3

ASSEMBLY OF THE FRONT GEAR CASE

94036
5x4mm
Set Screw

94011
4x16mm
Hex Screw

........x1

........x2

｡ｯAdjust the backlash with the shims.

4x16mm

40024

40017

Apply
Grease

40024

49012

36053

5x4mm

40017

36053

nt

rew

e

m

Sc

Ce

36730

40024
13x16x0.2mm
Shin

4

ASSEMBLY OF THE FRONT ARMS HOLDER

4x45mm

........x2

Tighten

40022

40015

94027
4x16mm
Flat Head
Hex Screw

94014
4x45mm
Hex Screw

........x4

........x2

40015

4x16mm

5

ASSEMBLY OF THE FRONT SHOCK STAY

4x12mm

35313
3mm
Nylon Nut

35314
4mm
Nylon Nut

94004
3x12mm
Hex Screw

94010
4x12mm
Hex Screw

94012
4x20mm
Hex Screw

90018
3x25mm
Screw

........x2

........x2

.......x4

.......x4

.......x2

.......x2

40117

3mm

4x20mm

40117

40531

40116

3x12mm

3x25mm

4mm

6

ASSEMBL OF THE KNUCKLE ARMSY

94034
4x4mm
Set Screw

35314
4mm
Nylon Nut

40527
Knukcle Arm
Bushing

40128
8x12x0.3mm
Washer

........x2

........x4

........x4

........x2

4x12mm

3x12mm

Step 1 Step 2

40536

Step 3

4mm

40527

Step 4

40520

Assembly for both right and left side

36053

Sc

Ce

r

ew

m

ent

30058

40128
8x12x0.3mm

36055

36053

4x4mm

36055

2.5x16.8mm
Pin

40528
King Screw

........x2

........x4

4mm

40528

40141

Right side

7

ASSEMBLY OF THE FRONT SUSPENSION ARMS

90020

2.5mm
E-Ring

........x2

*Insert the front drive shaft into
cap joint before assembly

4x10mm

Assembly for both right and left side

4x10mm

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

90021
3mm
E-Ring

36870
4x10mm
Set Screw

40546
3x42.7mm Arm Shaft

40524
4x73mm Arm Shaft

8

ASSEMBLY OF THE FRONT UPPER ARMS

36850
7mm Ball

........x2

........x2

........x2

3mm

........x2

........x2

40524

40139

36861

40140

2.5mm

36690

40140

40546

2.5mm

Ensure
Free
Movement

Assembly for both right and left side

1:1

*Approx.12 mm

36861
5X35MM
Turnbuckle

9

ASSEMBLY OF THE FRONT SUSPENSION ARMS

90020

2.5mm
E-Ring

35313
3mm
Nylon Nut

94008
3x25mm
Hex Screw

36170
3x44.3mm Arm Shaft

........x4

........x2

........x2

........x2

........x2

2.5mm

36850

36170

3x25mm

Ensure
Free
Movement

Assembly for both right and left side

2.5mm

Tighten

3mm

10

ASSEMBL OF THE FRONT STABILIZERY

9435
3x8mm
Set Screw

94006
3x18mm
Hex Screw

30403
6mm
Ball

11

ASSEMBL OF THE FRONT STABILIZERY

........x2

........x2

........x2

Makes two rods for left and right
hand-side.

30341

40029

40199

3x8mm

30403

Scre
Cem

Assembly for both right and left side

3x18mm

w
ent

3x3mm

94033
3x3mm
Set Screw

94003
3x10mm
Hex Screw

12

ASSEMBL OF THE SERVO SAVERY

........x2

........x4

40017

40017

3x10mm

40037

Step 1 Step 2

40032

*Do not tighten 40037
Hex Screw too tight.

40031

40019

40037

40035

3x3mm

w

tCeme

e

n

Scr

*Approx. 6mm

4x10mm

3x12mm

4x10mm

40030

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

94004
3x12mm
Hex Screw

94009
4x10mm
Hex Screw

........x1

........x2

40031

40031

40031

40031

40031

40621

40018

40034

40036

13

ASSEMBL OF THE STEERING TIE-RODY

94041
3mm
Nylon Nut

94021
3x15mm
Flat Head
Hex Screw

94022
3x18mm
Flat Head
Hex Screw

........x2

........x2

........x2

3mm

Step 1 Step 2

40038

36700

40108

36700

40039

40038

3x15mm

40039

S

c ew

r

4x10mm

t

ew

en

cr

m

S

e

C

Cem nte

3x15mm

40039

94009
4x10mm
Hex Screw

14

ASSEMBL OF THE FRONT BUMPERY

3x10mm

94003
3x10mm
Hex Screw

........x2

1:1

*Approx. 45.8mm

Step 1 Step 2

40137

3x12mm

3x10mm

........x4

3x10mm

3x18mm

40137

40137

40137

3x12mm

3x12mm

40676

94004
3x12mm
Hex Screw

15

ASSEMBL OF THE REAR GEAR CASEY

40024
13x16x0.2mm
Shim

94011
4x16mm
Hex Screw

........x5

........x2

........x2

*Adjust the backlash with the shims.

40024

4x16mm

40017

Apply
Grease

36053

40017

36053

49012

40024

16

ASSEMBL OF THE REAR ARMS HOLDERY

94036
5x4mm
Set Screw

94003
3x10mm
Hex Screw

94009
4x12mm
Hex Screw

94030
4x45mm
Flat Head
Hex Screw

........x1

........x1

........x4

........x2

Step 1 Step 2

5x4mm

t

e

r w

c

e

S

em n

C

36730

40025

Tighten

40015

4x12mm

4x45mm

3x10mm

Do Not
Over Tighten

4x12mm

40027

17

ASSEMBL OF THE REAR SHOCK STAYY

Step 1 Step 2

40027

3x10mm

40145

Step 3

40531

40531

Screw

Cement

3x25mm

S

C t

3x25mm

c

e

r

men

e

w

94019
3x10mm
Flat Head
Hex Screw

94004
3x12mm
Hex Screw

90018
3x25mm
Cap Screw

........x1

........x2

........x2

3x12mm

18

ASSEMBL OF THE WING STAYY

Step 1 Step 2

40027

94042
4mm
Nylon Nut

94005
3x16mm
Hex Screw

94007
3x20mm
Hex Screw

........x2

........x2

........x4

Step 3

4x20mm

4x16mm

40027

40027

3x16mm

3x20mm

4x20mm

Step 4

40027

40027

3x20mm

3x16mm

4mm

4mm

4x20mm

94048
3x20mm
Cap Screw

94011
4x16mm
Hex Screw

94012
4x20mm
Hex Screw

19

ASSEMBL OF THE REAR WHEEL HUBSY

94036
5x4mm
Set Screw

36870
4x10mm
Set Screw

36055

2.5x16.8mm
Pin

........x2

........x2

........x2

........x1

........x3

........x3

40018

Step 1 Step 2

36053

36055

8x12x0.3mm

5x4mm

30058

2.5mm

3x20mm

4x10mm

Assembly for both right and left side

40140

2.5mm

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

4x16mm

4x10mm

Ensure
Free
Movement

40128
8x12x0.3mm
Washer

........x2

40522

40540

40525

40540

20

ASSEMBL OF THE REAR SUSPENSION ARMSY

Assembly for both right and left side

3mm

90021
3mm
E-Ring

40524
4x73mm Arm Shaft

21

ASSEMBL OF THE REAR SUSPENSION ARMSY

94041
3mm
Nylon Nut

94006
3x18mm
Hex Screw

94008
3x25mm
Hex Screw

........x4

........x2

........x4

........x2

........x2

3mm

40524

Step 1 Step 2

36850

40540

1:1

*Approx. 35mm

36880

40540

36850

3x18mm

40140

40142

(114mm)

Ensure
Free
Movement

Assembly for both right and left side

3mm

3mm

22

ASSEMBL OF THE REAR STABILIZERY

Step 1 Step 2

30341

40029

3x8mm

40199

30403

94033
3x3mm
Set Screw

94035
3x8mm
Set Screw

94003
3x10mm
Hex Screw

........x2

........x2

........x4

3x16mm

40017

3x25mm

3x3mm

3x3mm

94005
3x16mm
Hex Screw

........x2

3x10mm

Ensure
Free
Movement

40019

23

ASSEMBL OF THE BRAKE AND CENTER DIFF. MOUNTY

Step 1

40591

Step 4 Step 5

40676

Step 2

40040

40662

3x10mm

Step 3

40040

36660

3x12mm

3x3mm

40041

40040

40665

3x3mm

30171

40665

3x12mm

Step 7Step 6

40031

30171

94033
3x3mm
Set Screw

94003
3x10mm
Hex Screw

94004
3x12mm
Hex Screw

........x2

........x2

........x6

24

ASSEMBL OF THE RADIO TRAYY

3x10mm

94040
3x8mm Washer

94003
3x10mm
Hex Screw

........x8

........x6

40138

40143

Step 2 Step 3Step 1

3x20mm

3x8mm

40676

3x8mm

3x12mm

3x8mm

40031

3x10mm

40117

40541

3x25mm

3x8mm

40676

94004
3x12mm
Hex Screw

94007
3x20mm
Hex Screw

94008
3x25mm
Hex Screw

25

ASSEMBL OF THE RECEIVER BOXY

Step 1

10282

2x8mm

........x4

........x2

........x2

Switch

40541

40541

Step 2

37410

40541

37410

40031

30560

40541

40855

Battery

*Use the screw provide
with your switch.

Screw

40541

........x42x8mm

Receiver

26

ASSEMBL OF THE RADIO TRAY INTO RECEIVER BOXY

94004
3x12mm
Hex Screw

27

ASSEMBL OF THE FRONT GEAR CASE ONTO CHASSISY

3x12mm

........x2

4x10mm

4x12mm

4x16mm

4x10mm
Flat Head
Hex Screw

94026
4x12mm
Flat Head
Hex Screw

94027
4x16mm
Flat Head
Hex Screw

28

ASSEMBL OF THE REAR GEAR CASE ONTO CHASSISY

40133

........x2

........x2

........x4

4x12mm

4x16mm

94026
4x12mm
Flat Head
Hex Screw

94027
4x16mm
Flat Head
Hex Screw

........x2

........x4

29

ASSEMBL OF THE CENTER DIFF. ONTO CHASSISY

40136
(104mm)

4x10mm
Flat Head
Hex Screw

30

ASSEMBL OF THE RADIO TRAY ONTO CHASSISY

........x4

4x10mm

Radio Tray assembly

40136
(120mm)

*Insert the drive shaft into
the cap joint before assembly
center diff. onto chassis.

94019
3x10mm
Flat Head
Hex Screw

31

ASSEMBL OF THE FUEL TANK ONTO CHASSISY

94040
3x8mm Washer

94019
3x10mm
Flat Head
Hex Screw

94004
3x12mm
Hex Screw

........x8

Pressure Nipple

40109

........x2

........x2

........x2

3x12mm

3x8mm

40138

3x12mm

3x8mm

Pressure Nipple

3x10mm

Step 2Step 1

Do Not
Over Tighten

3x10mm

32

ASSEMBL OF THE CLUTCH AND ENGINE MOUNTY

Step 1 Step 2

*Fit the flywheel using a pair of the
plIer and cross wrench.

10098

* Only use this 10091 pilot shaft for threaded crank
shaft engine.

Sc

Ce n

w

re

e t

m

10040

Sc

Cem nt

10040

10091

10010

re

w

e

*Place the clutch shoes with the clutch
springs over the 3 pins of the flywheel.
*Using a phillips screw driver or needle
nose pliers and bend the small end in

10330

the clutch spring behind the pilot shaft
10102 than press down.

Step 3 Step 4

10102

3x16mm

Threaded
Crank Shaft

10330

34110

5x9x0.3mm

3x10mm
Cap Screw

........x1

3x8mm

10399

3x16mm
Cap Screw

33

ASSEMBL OF THE MANIFOLD AND MUFFLERY

........x4

3x10mm

Step 1 Step 2

31995

40674

10120

97500

14

31994

10185

ZIP TIES

34

ASSEMBL OF THE ENGINE ONTO CHASSISY

Note book Paper.

*Use note book paper to set gear backlash between
spur gear and clutch bell gear, applying pressure
while tightening the engine.
*If the space is not correct the spur gear will
be damaged.

94034
4x4mm
Set Screw

4x10mm
Flat Head
Hex Screw

........x2

........x1

3x12mm

4x4mm

40050

4x4mm

94004
3x12mm
Hex Screw

10114
5mm
Engine Mount
Screw

35

ASSEMBL OF THE FUEL TUBEY

........x2

40051

10114

4x10mm

........x4

Connect to carbulater.

10177

Connect to pressure nipple.

Connect to fuel tank nipple.

Connect to fuel nipple.

10177

36

ASSEMBL OF THE STEERING RODY

94003
3x10mm
Hex Screw

94004
3x12mm
Hex Screw

........x1

........x1

30661

30403

3x10mm

10759

30403

30401

38281

Use the screw
provided with
your servo.

3x12mm

1:1

*Approx. 28.5mm

37

ASSEMBL OF THE THROTTLE LINKAGEY

3x3mm

Step 1 Step 2

94033
3x3mm
Set Screw

2mm
Nut

2.5mm
Nylon Nut

2x8mm
Screw

94003
3x10mm
Hex Screw

........x4

........x2

........x1

........x2

........x1

3x3mm

10300

Step 3

Ce nt

me

2mm

30802

r

eSc

w

40664

3x3mm

10300

30531

2x8mm

30661

Cut off the servo saver as shown.

30802

Step 4

2.5mm

30802

30802

30802

2.5x18mm

Ensure
Free
Movement

40664

40617
Adjust the high
with3x6,4x1mm
washer

36140

3x3mm

36140

40664

2.5x18mm
Screw

38

ASSEMBL OF THE THROTTLE LINKAGEY

........x1

Use the screw
provided with
your servo.

3x10mm

3x3mm

10300

94033
3x3mm
Set Screw

10759

........x2

39

ADJUSTING THE ENGINE CONTROL LINKAGES

(Neutral)

Approx. 0.5mm

Turn on the Transmitter then Receiver and set the
Engine Control Servo Trim to the neutral position.
Adjust the idling adjusting screw on the Carburetor
to be open approx. 1mm gap.
Adjust both of the 10300 Engine Control and Brake linkage
accordingly.
Adjust the Engine while it is NOT RUNNING.

40

ASSEMBLY OF THE AIR FILTER

Step 1 Step 2

3x8mm

40127

40128

10300

Approx. 1mm gap

Idling Adjusting Screw

.

*Apply filter oil to the
foam before use.

(Throttle High)

Adjust the Servo-Horn mounting position for the
Carburetor to be full open.
Change the pivot mounting position on the servo
horn in case the Carburetor is not opening fully or
if it is opening excessively. Or if available on the
Transmitter, adjust the Throttle high end point.

ZIP TIES

Carburetor is
Opening fully

ZIP TIES

(Brake)

Spring Compress

10300

36140 Alum. Adjust Nut

Adjust 10300 so the brakes work smoothly.
If the brakes apply too much or not enough,
adjust 36140 accordingly. Or if available on the
Transmitter, adjust the High-End Brake
adjustment.
Adjust 36140 to Change the front or Rear Brake.

40128

94002
3x8mm
Hex Screw

41

ASSEMBLY OF THE FRONT SHOCK

Builds two front shocks.

2.6x5mm
Washer

40060

2.5mm
Nylon Nut

40090

3.5mm
O-Ring

40090
1mm
Washer

40090
2mm
Washer

........x4

........x2

........x4

........x2

........x2

........x1

Step 1

30403

41008

40090

40090

41019

41003

40127

40643
(Long)

40090

40090

40129

Fit the o-ring into groove
before assembly.

41007

41006

40054
(Short/Front)

2.6x5mm

41011
(1.4mmx6)

2.6x5mm

Step 2

1. Pull down piston and pour oil into shock cylinder.

2. To remove air bubbles by slowly moving piston up
and down.

3. Pull down piston, attach pressure top
and shock oil overflow with tissue
paper.

fill the shocks
with oil #50WT.

41013

41005

CORRECT SHOCK ASSEMBLY

56.7mm

28mm

OK

Carefully screw the shock
shaft into the bottom of the
plastic ball end untill the
distance between the ball end
and the shock body is 28mm
for the front .
N.B. Do not over tighten as the
plastic will strip.

30403
6mm
Ball End

........x2

40060

Do Not
Over Tighten

0 20

30

4010

42

ASSEMBL OF THE REAR SHOCKSY

Builds two rear shocks.

2.6x5mm
Washer

40060

2.5mm
Nylon Nut

40090

3.5mm
O-Ring

40090
1mm
Washer

40090
2mm
Washer

30403
6mm
Ball End

........x4

........x2

........x4

........x2

........x2

........x2

Step 1

30403

41004

41008

40090

40090

41019

40643
(Long)

40090

40090

Fit the o-ring into groove
before assembly.

41007

41006

40055
(Long/Rear)

2.6x5mm

41011
(1.4mmx6)

2.6x5mm

40060

Do Not
Over Tighten

Step 2

1. Pull down piston and pour oil into shock cylinder.

2. To remove air bubbles by slowly moving piston up
and down.

3. Pull down piston, attach pressure top
and shock oil overflow with tissue
paper.

fill the shocks
with oil .#50

41013

41005

0 20

CORRECT SHOCK ASSEMBLY

65.2mm

37.5mm

OK

Carefully screw the shock
shaft into the bottom of the
plastic ball end untill the
distance between the ball end
and the shock body is 37.5mm
for the rear .
N.B. Do not over tighten as the
plastic will strip.

30

4010

43

ASSEMBL OF THE FRONT SHOCK SPRINGSY

40058

m

u m

Ct7

45

ASSEMBL OF THE FRONT SHOCK ABSORBERY

Assembly for both right and left side

41028

41008

44

ASSEMBL OF THE REAR SHOCK SPRINGSY

40058

41023

41008

94041
3mm
Nylon Nut

94040
3x8mm
Washer

94007
3x20mm
Hex Screw

........x2

........x2

........x2

3mm

3x8mm

3x20mm

46

ASSEMBL OF THE REAR SHOCK ABSORBERY

Assembly for both right and left side

94041
3mm
Nylon Nut

94040
3x8mm
Washer

94007
3x20mm
Hex Screw

47

ASSEMBL OF THE TIRES AND WHEELSY

........x2

........x2

........x2

3mm

3x8mm

3x20mm

Step 1

80022

48

ASSEMBL TIRE ONTO FRONT KNUCKLE AND REAR HUBY

81106

Step 2

86106

Step 3

Apply instant glue into the groove of the wheel.

INST

GL

N

UE

TA

Tire and wheel assembly

40550

49

ASSEMBL OF THE WINGY

3x12mm

20

15

*Check the hole spacing on the underside.

3mm
Nylon Nut

3x12mm
Hex Screw

50

MOUNTING BODY

0

5

10

5

........x294041

........x294004

20

10

15

2525

40673RW

31159

40027

40083

3mm

51

STARTING OF THE ENGINE

How to start the engine:

1.Connect the Starter to the truck

*Connect the Starter control box to the connector
located in the rear shock stay mount.
*Caution : Before starting the engine ,review the
important-read this before running and operate
your model safety.

2.Start the engine

*With one hand ,hold the throttle half open using
the throttle trigger on the transmitter. With your
other hand ,press the red button on the Starter.
If the engine does not start ,release the red
button and try again in 5 sec. Interval.

*Follow the engine manufacturer instruction
manuals regarding engine set-up, carburetor
and maintenance.

7.2V Battery
(Not included)

Electric Starter

Electric Starter

SETTING GUIDE

FRONT CAMBER ANGLE SETTING REAR CAMBER ANGLE SETTING

Turnbuckle

+

Place the model car on flat surface. Raise the chassis to it's maximum clearance
before the wheels leave the ground.
Adjust the length of the front and rear upper arms so that the wheels are right angle to the
ground.
The camber angle adjustment can be moving the turnbuckle rod on the upper arms,
clockwise or anti-clockwise.

(We suggest use zero degree for the front and 2 degree for the rear.) negative

-

FRONT TOE-IN AND TOE-OUT SETTING

NEUTRAL POSITION

TOE-OUT

TOE-IN

-

+

TOE-OUT

+

-

NegativeNegative PositivePositive

FRONT SHOCK ANGLE SETTING

Soft

1

4

5

2

3

6

Turnbuckle

Firm

-

+

Adjust the length of front steering rod to change the
toe angle.

Making the tie rod longer will make the front tires
become toe-in.
Response will be slower and will over steer.

Making the tie rod shorter will make the front tires
become toe-out.
Response will be quicker and will under steer.

REAR TOE-IN SETTING

By change the rear toe-in block can be change
rear toe-in.

Steering Rod

Firm front suspension, less steering.
Soft front suspension, more steering.

REAR SHOCK ANGLE SETTING

Firm rear suspension, over steering.
Soft rear suspension, under steering.

REAR WHEELBASE

367.5mm 370mm365mm

0

Soft

1

4

5

2

Soft

6

3

Soft

Firm

12

Firm

12

Firm

1

1 Degree 2 Degree 3 Degree

2

3

Adjust the wheelbase by using the spacers on either side of the rear uprights (at the bottom pin).

IMPORTANT! Make equal adjustments on both left and right sides of the car.

Shorter wheelbase

less spacers in front of the rear upright.

- increases rearward weight transfer during acceleration.

- increases on-power traction.

- quicker off-power steering into corners.

- slight tendency to push on-power at corner exit.

- increases steering response.

- better on tighter, more technical tracks.

Longer wheelbase

more spacers in front of the rear upright.

- decreases off-power steering into sharp corners.

- increases stability.

- slower initial steering reaction (off-power).

- improves on-power steering at corner exit.

- better handling over bumps and ruts.

- better on more open tracks with high-speed corners.

MUTILATOR V3

SETTUP SHEET

DRIVER:

DATE:

TRACK:

SIZE:

OPEN

MEDUIM

TIGHT

TRACTION:

HIGH

MEDIUM

LOW

SURFACE:

SMOOTH

MEDIUM

BUMPY

FRONT SUSPENSION

TOE ANGLE

RIDHIEIGHT

CAMBER

SWAY BAR

OIL:

PISTON:

SPRING:

IN:

OUT:

mm

POS:

NEG:

2.5mm

OTHER

FRONT SHOCHS

W

STANDARD

DRLLRD

SOFT

MEDUIM

HARD

OTHER

mm x 1

mm x 2

WHEEL

NOTES:

1

2

3

4

5

6

1
2

3

1

2

REBOUND STOP:

A

B

mm

REAR SUSPENSION

REAR TOR-IN PLATE:

1

2

3

RIDHIEIGHT

CAMBER

SWAY BAR

REAR SHOCHS

OIL:

PISTON:

SPRING:

1 Degree

2 Degree

3 Degree

POS:

NEG:

2.5mm

OTHER

W

STANDARD

DRLLRD

SOFT

MEDUIM

HARD

mm

OTHER

mm x 1

mm x 2

WHEEL

NOTES:

1

2
3

4
5
6

1

3

4

5

2

1 2

1 2

REBOUND STOP:

WIN POSITION

A

B

mm

DIFF OIL TORSEN DIFF

ENGINE

FRONT: FRONT:

CENTER: CENTER:
REAR: REAR:

TYPE:

GASKET:

mm

PLUG:

MUFFLER:

FUEL:

TIRES

CLUTCH

TYPE: TYPE:

FRONT

INSERT: INSERT:

CLUTCH BELL

13T
14T
15T

CLUTCH SHOES

REAR

3 SHOE

4 SHOE

MUTILATOR V3

SETTUP SHEET

DRIVER:

DATE:

TRACK:

SIZE:

OPEN

MEDUIM

TIGHT

TRACTION:

HIGH

MEDIUM

LOW

SURFACE:

SMOOTH

MEDIUM

BUMPY

FRONT SUSPENSION

TOE ANGLE

RIDHIEIGHT

CAMBER

SWAY BAR

OIL:

PISTON:

SPRING:

IN:

OUT:

mm

POS:

NEG:

2.5mm

OTHER

FRONT SHOCHS

W

STANDARD

DRLLRD

SOFT

MEDUIM

HARD

OTHER

mm x 1

mm x 2

WHEEL

NOTES:

1

2

3

4

5

6

1
2

3

1

2

REBOUND STOP:

A

B

mm

REAR SUSPENSION

REAR TOR-IN PLATE:

1

2

3

RIDHIEIGHT

CAMBER

SWAY BAR

REAR SHOCHS

OIL:

PISTON:

SPRING:

1 Degree

2 Degree

3 Degree

POS:

NEG:

2.5mm

OTHER

W

STANDARD

DRLLRD

SOFT

MEDUIM

HARD

mm

OTHER

mm x 1

mm x 2

WHEEL

NOTES:

1

2
3

4
5
6

1

3

4

5

2

1 2

1 2

REBOUND STOP:

WIN POSITION

A

B

mm

DIFF OIL TORSEN DIFF

ENGINE

FRONT: FRONT:

CENTER: CENTER:
REAR: REAR:

TYPE:

GASKET:

mm

PLUG:

MUFFLER:

FUEL:

TIRES

CLUTCH

TYPE: TYPE:

FRONT

INSERT: INSERT:

CLUTCH BELL

13T
14T
15T

CLUTCH SHOES

REAR

3 SHOE

4 SHOE

OFNA DESCRI PTION RETAIL OFNA DESCRIPTION RETAIL

10010 CLUTCH SHOES, BLACK, 3 SHOES 13.95 40065 BALL ENDS, PLASTIC, REAR UPPER 4.95
10011 SHOES,ALUM BLUE-1.8g W /SPRING 24.95 40083 W IN G , 9.5 , W H ITE 15.95
10012 SHOES,ALUM PURPLE-2.0gW /SPRING 24.95 40090 SEALS,SHOCK REBU ILD, 9.5 X-1 7.95
10013 SHOES,ALUM SILVER-1.7gW /SPRING 29.95 40093 CAPS, SHOCK, HARD COATED LONG 15.95
10040 3 P IN FLYW H EEL, .21 CORN TYPE 14.95 40098 PISTONS, SHOCK, BLACK 9.5 & X1 5.95
10069 RED SEAL, SILICONE ROUND, 2PCS 6.95 40108 TURNBUCKLE, 4x56mm, 9.5V PAIR 7.95
10073 PIPE,INLINE,OFNA-095, POLISHED 79.95 40109 TAN K,FUEL,150cc VIO LATO R,X1CR T 13.95
10098 CLUTCH NUT, SG SHAFT 4.95 40116 SHOCK TOW ER FR/RR NEW BLAZER 9.95
10101 SPRINGS,CLUTCH,GOLD 1.1M 3PCS 4.95 40117 BLAZER TRUCK BODY MOUNT NEW 10.95
10114 FLAT HEAD ENGINE MOUNT SCREW S 7.95 40127 AIR FILTER SET, X-1 9.95
10120 SPRING, MANIFOLD, R.PORT .21 4.95 40128 FO AM, REPLACEMEN T FOR 40127 5.95
10177 FUEL LINE 3FT. G RAY/BLACK 1.95 40129 CONNECTOR, RUBBER FOR 40127 5.95
10185 SILIC ONE JOINT TUBE, SPL, BLACK 5.95 40133 C HAS SIS , M UTILAT OR 6061 3mm 79.95
10282 SW ITC H COVER, SILICONE BLACK 3.95 40134 SPUR, GEAR STEEL 62T MTL. 34.95
10300 ALUM . STOPPER KIT, 6 PCS. 4.95 40136 CENTER DRIVE SHAFT 104,120mm 16.95
10399 CLUTCH BELL W /BEARINGS, 13T 19.95 40137 BUM PER MUTILATOR 12.95
10765 SERVO HORNS, HD NYLON,BLUE SET 8.95 40138 RADIO TRAY POST, PLASTIC 4.95
30051 W HEEL HUB 17x6mm, BLUE PAIR 10.95 40139 ARM, FRONT UPPER MUTILATOR PRO 6.95
30058 W HEEL HUB EXTENSIO NS, 15mm 4PC 19.95 40140 ARM, FR & RR LOWER MTL PRO 12.95
30171 LEVER, BRAKE 1.95 40141 UNIVERSAL FRO NT MUTILATOR PRO 39.95
30341 BALL END W ITH COLLAR, 6mm 3.95 40142 DRIVE SHAFT REAR 114mm MTL PRO 12.95
30401 STEER ING EN DS, PLASTIC 6 PCS. 2.95 40143 RADIO TRAY MTL PRO H.C. 12.95
30402 3x30m m TIE RO D 2.95 40145 SHOCK TOW ER RR MTL AUTOSTART 14.95
30403 6m m BALL, ST EEL (NO COLLAR) 4.95 40199 STEERING BALL END,PLASTIC , 6mm 7.95
30530 THROTTLE JOINT KIT, NYLON END 3.95 40513 DIFF. GE AR (sm all & large)ALU M 16.95
30531 SPRING, THROTTLE LINKAG E 2.95 40520 KNUCKLE ARM, L & R 19.95
30560 ANT TUBE AND MOUNT 2.95 40525 SHAFT 3x48.1m m DM UPPER FRONT 6.95
30661 SERVO HORN HEAVY DUTY BLACK 4.95 40526 W HEEL HUB 5m m 11.95
30776 W ASHE R, 4x10x0.2m m 4PCS. 1.95 40527 KNUCKLE ARM BUSHING 4.95
30800 LINKAGE, BRAKE/THRO TTLE (98) 6.95 40528 KING PIN SCREW 1.95
30802 LINKAGE, 2 THROTTLE LINKAG E 7.95 40531 SHOC K BALL POST/O NE-PIECE/TOP 9.95
31994 PIPE, 9.5mm RTR POLISED 54.95 40536 FRONT C HUB 11.95
31995 MANIFOLD, SILVER MTL AUTOSTAR T 25.95 40540 REAR UP RHT & UPR ARM, BUMPER 9.95
34110 BEARING, 5x10, 2 PCS 6.95 40541 REC EIVER BOX, NEW TYPE 14.95
36053 BEARING, 8x16m m, PAIR 12.95 40546 FRONT ARM SHAFT 3x42.7mm 11.95
36055 PIN, 2.5x17mm , HEX HUBS, 4PCS 3.95 40550 W HEEL NUT 5mm 4.95
36081 REAR UP-RIGHT (8mm BEARING) PR 12.95 40556 ALUM. SHOCK SPRING ADJ. H.C. 21.95
36082 REAR AXLES, 8mm PAIR 10.95 40591 BRAKE DISK, FIBER X1-C R/CRT 14.95
36170 ARM PINS, 3mm 4PCS LX1 7.95 40617 W ASHER , PLASTIC, BLAC K 8PCS. 3.95
36660 BRAKE PAD, 4PCS. 3.95 40642 ANTENNA PIPE FIXING NUT 2.95
36690 UPPER BALL END, 7mm 6PCS 6.95 40662 CENTER DIFF. MOUNT POST 19.95
36700 STEER ING BALL END, 7mm , 8PCS. 6.95 40664 BRAKE ROD, 2x68mm 3.95
36730 JOINTS CAP, 6m m, 2PCS. 11.95 40665 BRAKE CAM 8.95
36850 7m m BALL, 6 PC S. 3.95 40673R W BODY, TRUGGY MUTILATOR RED/W H 69.95
36860 5x40mm TURNBUCKLES, 2 PCS. SIL 6.95 40674 ENGINE MOUNT (Tall) CR & CRT 18.95
36861 5x40mm TURNBUCKLES, 2 PCS BLK 6.95 40676 BODY PO ST AND SERVO MOUNT 9.95
36880 5x60mm TURNBUCKLES 6.95 40855 ANT. TUBE FIXING NUT (BROW N) 2.95
37410 BO DY CLIPS, 10 PCS. SMALL 3.95 41001 SHOCK BIG BORE FRO NT 16MM PAIR 79.95
38281 TURNBUCKLES, 3X40MM, 2PCS 5.95 41002 SHOCK BIG BORE REAR 16MM PAIR 79.95
38313 CONE, TAPER ED 7mm , SG 2.95 41003 SHOCK BODY FRONT 16MM PAIR 29.95
40003 CASE, DIFF, 1 PC 9.95 41004 SHOCK BODY REAR 16M M PAIR 29.95
40005 CAP JOINT, BRAKE, 2PCS 13.95 41005 SHO CK CAP 16MM 4PCS. 22.95
40006 CAP JOINT, FNT&RR DIFF, 2PCS. 13.95 41006 SHOC K SPRING ADJ. 16MM 4PCS. 14.95
40009 SEAL, P-6 O-RING, DIFF, 2PCS 2.95 41007 O -RIN G 19x1.5MM 16MM 4PC S. 4.95
40010 P IN , 2 .5X1 3 .8M M , D IFF , 2 P C S 2.95 41008 PLASTIC SH OCK PARTS 16MM SET 12.95
40011 G ASKET, DIFF 3PCS 3.95 41009 CAP SCREW S 3X28M M 4PCS. 2.95
40015 FRONT HOLDER, LOW ER ARMS 5PCS 14.95 41010 SHO CK BALL END PO ST LONG 4PCS 11.95
40017 M AIN G EAR BOX, FRONT&REAR, 1PC 18.95 41011 SHO CK PISTON 16MM 8PCS. 10.95
40018 BRACE, CENTER, NYLO N, 9.5 KIT 7.95 41012 REPAIR KIT FO R 16MM SHOCK 9.95
40019 ANTI-ROLL KIT (FRONT/REAR) 13.95 41013 PRESSURE TOP ORANGE 16MM 4PCS. 7.95
40022 FRONT, LOW ER ALUM. HOLDER 11.95 41014 SPRING 16MM SUPER SOFT YEL SET 17.95
40023 SHAFTS, LOW ER ARM S, 4MM , 4PCS. 17.95 41015 SPRING 16MM SOFT W HITE SET 17.95
40024 S H IM , 13 X 16 X O .2 M M , D IF F G E A R ,4 2.95 41016 SPRING 16MM BUGGY SILVER SET 17.95
40025 REAR, LOW ER ARM ALUM. HOLDER 11.95 41017 SPRING 16MM HARD GRAY SET 17.95
40027 W ING MOUNT SUPPORT SET 19.95 41018 SPRING 16MM TRU GGY BLUE SET 17.95
40028 DOG BONES, 93MM PAIR LX1 19.95 41019 O-RING 1OMMx1MM FOR 16MM SHOCK 2.95
40029 BALL ENDS, PLASTIC, ANTI-ROLL 3.95 41020 SHO CK BALL END POST L.W . LONG 14.95
40030 FRONT PLATE, ALUM. H.C. 8.95 41021 SP RING .52 REAR 16M M YELLOW 9.95
40031 SERVO SAVER HORN 15.95 41022 SPRING .58 REAR 16MM W HITE 9.95

34313 MUTILATO R AUTOSTART PARTS LIST

40032 PLATE, SERVO SAVER ,SLIDER H .C. 10.95 41023 SPRING .59 REAR 16MM BLUE 9.95
40033 SPRING, SERVO SAVER 3.95 41024 SPRING .60 REAR 16MM SILVER 9.95
40034 ALUM . RING, SERVO SAVER ADJ.RI 5.95 41025 SPRING .64 REAR 16M M GRAY 9.95
40035 AXLE TUBE, SER VO SAVER 35.95 41026 SPRING .66 F RONT 16M M Y ELLOW 9.95
40036 AXLE POSTS, SERVO SAVER 5.95 41027 SPRING .70 FRONT 16MM W HITE 9.95
40037 SCREW S, SERVO PLATE 5.95 41028 SPRING .71 FRONT 16M M B LUE 9.95
40038 BALLS, 7MM 4PCS. 9.95 41029 SPRING .74 FR ON T 16MM SILVER 9.95
40039 CONE, ALUM. 3MM, 4PCS. 3.95 41030 SPRING .88 FRONT 16MM GRAY 9.95
40040 CENTER DIFF MOUNT 4.95 50110 M OTOR, AUTO STAR T REPLACEMENT 9.95
40041 CENTER, ALUM . TOP PLATE, H.C . 8.95 50111 W IRE SET FOR AUT0 START 5.95
40050 PO ST, PIPE HOLDER 6.95 50114 GEAR ASLB W /O M OTOR MTL, ULTRA 33.95
40051 W IRE, PIPE MOUN T 4.95 52226 FORC E .28 AUTO START SYSTEM 299.95
40054 SHAFTS,3.5m FRONT SHOCKS, 2PCS 7.95 49012 GEAR, 13T PINION 7.95
40055 SHAFTS,3.5m REAR SHOCKS, 2PCS 7.95 49032 GEAR, BEVEL, 43 TOOTH 29.95
40057 ADJUSTERS, SPRING, BLUE, 4PCS 20.95 80022 TIRES, X LPR TRUGGY w/INSERTS 30.95
40058 COVERS, SH OCK SHAFTS, SILICONE 9.95 86106 W HEELS ,3.7 1/2O FFSET LPR W HT4P 28.95
40059 SEALS, 14.7mm O-RING, 4PCS 4.95 86107 W H EELS,3.7 1/2OFFSET LP R YEL4P 28.95
40060 NYLOK NUT, 2.5, PISTON NUT, 4 4.95 86108 W HEELS,3.7 1/2OFFSET LPR BLK4P 28.95

86109 W H EELS,3.7 1/2OFF SET LPR ORG4P 28.95

OWNER’S REGISTRATION CARD

OFNA Racing congratulates you on your purchase of our fine OFNA Product. With proper maintenance and han­dling this kit will provide many hours of enjoyment.

The registration card should be filled out and mailed to OFNA Racing within 10 days of purchase date.

In the event that the kit is incomplete or component parts are broken due to error in manufacturer, contact your
dealer from which you purchased the kit for replacement part or call OFNA at [phone] for your nearest dealer
location. Other items such as radio and engine other covered by individual warranties.

IMPORTANT!
Please print or type, filling in the information listed below and mail immediately

MAIL TO:

OFNA RACING

7 VANDERBILT

IRVINE, CA. 92618

TEL: [phone]

Write in Your Model Name and Part Number

REGISTRATION CARD

RACER’S NAME TEL:( )

ADDRESS

CITY STATE ZIP

DEALER’S NAME TEL: ( )

ADDRESS

CITY STATE ZIP

OFNA
7 Vanderbilt
Irvine, Ca. 92618