OFNA Racing Ultra LX 1e User Manual

REQUIRED FOR OPERATION

TOOLS NOT INCLUDED IN THE KIT

Cutter

Phillips Type Screw Drivers ( L )

Curved Scissors

Phillips Type Screw Drivers ( S )

Needle Nosed Pliers

Knife

Precision Caliper

Brush

Cross Wrench

RADIO CONTROL UNIT

(NOT INCLUDED)

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

SUITABLE SERVO SIZE

m

m

1

mm-4

36

15mm - 21mm

29mm - 42mm

CA Glue

Masking Tape

Spray Paints

NOT INCLUDED

MAMBA MONSTER 1/8 ESC WITH
2650KV BRUSHLESS MOTOR

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 will.
*Adjustment can be made by re­ installing the servo horn.

Turn off the switch. (Receiver)

111111

12

Turn off the switch. (Transmitter)

13

Retract the antenna. (Transmitter)

INCLUDED IN THE KIT

17mm Wheel
Nut Wrench

4mm'5mm Allen Wrench

1.5mm Allen Wrench

2mm Allen Wrench

2.5mm Allen Wrench

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.

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.

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.

PLASTIC PARTS FOR USE

30751
DIFF. CASE

34063
REAR LOWER ARM

36011
FRONT LOWER ARM

30751
DIFF. CASE

30761
DIFF. CASE

40536
FRONT C HUB

30010
FRONT AND REAR GEAR BOX

36020
FRONT UPPER ARM

30201
CENTER DIFF. MOUNT

30351
REAR LOWER ARM HOLDER

30160
FRONT LOWER ARM HOLDER

36081
REAR WHEEL HUB

30240
BUMPER

40065
REAR UPPER ARM
PLASTIC ROD END

40643
SHOCK PLASTIC PARTS

40643
Shock Cap
Washer

40643
Shock Plastic
Ball End
(Long)

40643
Shock Plastic
Ball End
(Short)

PLASTIC PARTS FOR USE

30674
SERVO SAVER

16016
WING

41033
STONE GUARD

40019
FRONT STIFFENER

30662
BATTERY CASE

30270
WING STAY

SYMBOLS USED THROUGHOUT THE INSTRUCTION MANUAL

Degrease With
Motor Spray

Apply OilApply Screw

BAG

C

c

met

e n

w S re

Parts Bag Used

Cement

Oil

Do Not
Over Tighten

Apply
Grease

Do Not
Over Tighten

Apply Lubricant

Tighten

1:1

Tighten

True-To-Scale

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.

Step 1

94034
4x4mm
Set Screw

30121
3x5mm Screw

94004
3x12mm
Hex Screw

30777
P5 O-Ring

30776
4x10mm Washer

.....x2

.....x8

.....x8

.....x4

.....x8

30779

Step 3

30769

30777

30751

30620

30773

30769

30901

30780

30776

Oil

30769

4x4mm

*Notice the straight
holes are for the
front and rear only.

Step 2

Build two differentials for front and rear.

30751

30777

Step 4

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

30901

30620

Oil

30780

Tighten

3x12mm

30780
2x12.8mm Pin

30773
4mm Cross Pin

30121
3mm Tube

2

ASSEMBLY OF THE CENTER DIFF.

94034
4x4mm
Set Screw

94020
3x12mm
Flat Head Hex Screw

94004
3x12mm
Hex Screw

.....x4

.....x4

.....x8

.....x1

30779

.....x4

.....x4

Step 5

*Push 3mm tubes into the

30121

holes of the diff. case.

30121

30911

30620

Step 1 Step 2

30769

Step 3

30777

30761

30773

30780

30769

4x4mm

30776

Oil

30769

*Notice the tapered
holes are for the
center diff. only.

30120

30777

*Tighten the diff. screws
in this order.

1

3

30761

30620

Step 4

4

2

30911

Oil

30780

Tighten

3x12mm

30777
P5 O-Ring

30776
4x10mm Washer

30780
2x12.8mm Pin

30773
4mm Cross Pin

.....x2

.....x4

.....x2

.....x2

NB. It is very important to remove
the 30776 washer if the gear
mesh is too tight.

Step 5

3x12mm

*Apply diff. gear grease
to the differential, during
assembly.
*Use Diff. Oil #3000.

3mm

30110

*Tighten the diff. screws
in this order.

1

3

4

2

1

3

ASSEMBLY OF THE CENTER DIFF. MOTOR MOUNT

Sc

re

w

Ce

enm

t

3x12mm

3x10mm

S e

w

r

c

t

n

e

m

eC

94003
3x10mm
Hex Screw

94004
3x12mm
Hex Screw

4

ASSEMBLY OF THE FRONT GEAR CASE

.....x2

.....x2

*Note: the holes for
front diff. mount are
width.

Step 1 Step 2

94036
5x4mm
Set Screw

.....x1

30010

30653

30201

5x4mm

30630

c

S re

30080

30675

w

t

eCem n

4x12mm

30673

94010
4x12mm
Hex Screw

.....x2

30630

30130

30630
6x13x5mm
Ball Bearing

5

ASSEMBLY OF THE FRONT GEAR CASE

.....x2

Apply
Grease

Step 1 Step 2

94009
4x10mm
Hex Screw

94022
3x18mm
Flat Head Hex Screw

94029
4x25mm
Flat Head Hex Screw

90018
3x25mm
Cap Screw

94011
4x16mm
Hex Screw

.....x2

.....x2

.....x2

.....x2

.....x2

4x10mm

3x18mm

94003
3x10mm
Hex Screw

30655

4x25mm

.....x1

30010

Apply
Grease

*Notice the direction.

2

40531

4x16mm

3x25mm

30102

3x10mm

40531

30160

6

ASSEMBLY OF THE KNUCKLE ARMS

Assemble both right and left side.

Step 1

94034
4x4mm
Set Screw

94042
4mm
Nylon Nut

40527
Knuckle Arm
Bushing

40528
King Pin Screw

36055

2.5x16.8mm Pin

7

ASSEMBLY OF THE FRONT SUSPENSION ARMS

36870
4x10mm
Set Screw

.....x2

.....x4

.....x4

.....x4

.....x2

.....x2

36053

Step 3

34053

40218
8x12x0.3mm Washer

Step 1 Step 2

.....x2

40520

8x12x0.3mm

36053

36055

30656

Step 2

40536

4x4mm

4mm
Nylon Nut

w

cre

S

n

e

m t

Ce

4mm
Nylon Nut

40528

Assemble both right and left side.

40527

40527

90020

2.5mm E-Ring

36850
7mm Ball

36850
5x35mm
Turnbuckle

36170
3x44.3mm Arm Shaft

8

ASSEMBLY OF THE FRONT SUSPENSION ARMS

94041
3mm Nylon Nut

94008
3x25mm
Hex Screw

90021
3mm E-Ring

.....x4

.....x2

.....x2

.....x2

.....x2

.....x2

.....x8

4x10mm

36011

2.5mm

36170

Step 1 Step 2

3mm

2.5mm

3mm

36020

11¡G

*Approx. 9.5mm

36861

36850

Assemble both right and left side.

3mm

3mm

36171

36690

36640
4x47mm Arm Shaft

36171
4x74.1mm Arm Shaft

.....x2

.....x2

3x25

36640

3mm

*Insert the front drive shaft into
cap joint before assembly.

3

9

ASSEMBLY OF THE FRONT STABILIZER

Step 1 Step 2

94033
3x3mm
Set Screw

94035
3x8mm
Set Screw

94002
3x8mm
Hex Screw

.....x2

.....x2

.....x2

Assemble both right and left side.

3x3mm

94006
3x18mm
Hex Screw

94040
3x8x0.8mm
Washer

10

ASSEMBLY OF THE SERVO SAVER

94041
3mm Nylon Nut

94005
3x16mm
Hex Screw

36742
Servo Saver Bushing

36743
6mm E-Ring

8x12x1mm Washer

.....x2

.....x2

.....x2

.....x2

.....x2

.....x4

.....x1

3x8mm

Step 1 Step 2 Step 3

8x12x1mm

3x8x0.8mm

30674

36741

30361

34027

36743

30674

36743

30674

30361

30674

36743

30674

36743

3x18mm

*Makes two rods for left and right
hand-side

3x16mm

3x8x0.8mm

36742

30658

3mm
Nylon Nut

30341

40199

3x8mm

40199

30403

11

ASSEMBLY OF THE SERVO SAVER AND STEERING TIE-ROD

w

re

94003
3x10mm
Hex Screw

40038
7mm Ball

.....x3

.....x4

c

30659

30380

S
Ce e

t

m n

Step 1 Step 2

3x10mm

e

r w

c

S
Ce e m n

34014

40038

t

*Made two steering rods
for left and right hand-side.

36700

36790

11¡G

*Approx. 31mm

40038

36700

4