background image

12

STEP 

7:

Remove 

the 

3x23mm 

cap-head 

machine

 

screws 

that 

fasten 

the 

header 

to 

the 

engine. 

Carefully 

remove 

the 

header 

to 

avoid

 

damaging 

the 

gasket.

To

 s

ep

ar

at

th

en

gi

ne

 f

ro

the

 e

ng

in

mount, 

remove 

the 

four 

3x8mm 

cap-head 

machine 

screws. 

Rebuilding 

the 

Engine

STEP 

1:

Remove 

the 

4mm 

locknut 

from 

the 

front 

pipe 

hanger. 

Pull 

the 

pipe 

from 

the 

rear 

exhaust 

header.

STEP 

2:

Unplug 

the 

blue 

wire 

from 

the 

glow 

plug. 

Remove 

the 

fuel 

line 

from 

the 

carburetor 

inlet 

and 

from 

the 

exhaust 

header 

pressure 

fitting. 

Disconnect 

the 

red 

and 

black 

wires 

from 

the 

EZ-Start

®

 motor.

STEP 

3:

 

Remove 

the 

EZ-Start 

gearbox 

by 

removing 

the 

three 

3x8mm 

round-head 

machine 

screws.

STEP 

4:

Use 

2.5mm 

hex 

driver 

to 

remove 

the 

yellow 

ground 

wire 

from 

the 

engine 

mount. 

Move 

the 

EZ-Start 

wiring 

harness 

out 

of 

the 

way.

STEP 

5:

Use 

2.5mm 

hex 

driver 

to 

remove 

the 

three 

remaining

 

3x10mm 

cap-head 

machine 

screws 

from 

the 

engine

 

mount.

STEP 

6:

Pull 

the 

engine 

from 

the 

chassis. 

Turn 

the 

engine 

so 

that

 

the 

throttle 

linkage 

to 

the 

carburetor 

will 

come 

out.

 

STEP 

9: 

Changing 

the 

piston 

and 

sleeve 

assembly

Use 

5/16 

inch 

nut 

driver 

to 

remove 

the 

glow 

plug 

and 

copper 

gasket. 

STEP 

10:

Use 

2.5mm 

allen 

wrench 

to 

remove 

the 

four 

3x12mm 

cap-head 

screws 

that 

fasten 

the 

cylinder 

head. 

Rock 

the 

cylinder 

head 

gently 

from 

side 

to 

side 

to 

release 

it 

from 

the 

sleeve. 

Note 

the 

thin 

aluminum 

head 

gaskets. 

We 

recommend 

that 

you 

replace 

these 

gaskets 

with 

new 

ones 

upon 

reassembly.

STEP 

11:

Remove 

the 

backplate 

and 

the 

starter 

shaft. 

Replace 

the 

backplate 

gasket

 

with 

new 

one 

during 

assembly.

STEP 

12: 

The 

piston 

and 

sleeve 

are 

matched 

set. 

When 

the 

piston 

and 

sleeve 

are 

disassembled, 

they 

must 

be 

reassembled 

in 

the 

same 

orientation. 

Use 

hobby 

knife 

to 

scratch 

mark 

to 

indicate 

the 

location 

of 

the 

piston 

in 

relation 

to 

the 

pinning 

of 

the 

sleeve. 

STEP 

8:

Removing 

the 

carburetor 

is 

not 

necessary 

to 

rebuild 

the 

engine, 

unless 

you 

intend 

to 

replace 

the 

internal 

bearings 

of 

the 

engine. 

Remove 

the 

carburetor 

by 

loosening 

the 

3mm 

locknut 

and 

pulling 

the 

carburetor 

straight 

up. 

Содержание Nitro Stampede

Страница 1: ...OPERATING INSTRUCTIONS COVERS MODEL 4109 KC0532 R01 Part 4199X Rev 090731...

Страница 2: ...liable for any loss or damages whether direct indirect special incidental or consequential arising from the use misuse or abuse of this product and any chemical or accessory required to operate this...

Страница 3: ...iation for nickel cadmium The original rechargeable hobby pack NiCad batteries have very high current handling high capacity and can last up to 1000 charging cycles Good charging procedures are requir...

Страница 4: ...erent channels numbered 1 through 6 Each of the six channels is represented by a color Look at the crystal in the back of the transmitter to determine on which of the channels your truck is operating...

Страница 5: ...fit on initial startup is desirable for those who want the best performing engine Make sure you are using a good quality battery pack that is fully charged new batteries usually require several charg...

Страница 6: ...d with the engine break in 8 Do not rev your engine with no load wheels off the ground BREAKING IN THE ENGINE VERY IMPORTANT Once your engine is running it must be broken in The key to breaking in you...

Страница 7: ...temperature 1 Turn the throttle trim on the transmitter so that the brakes are applied This ensures that the throttle barrel is resting against the idle adjustment screw 2 If necessary remove the air...

Страница 8: ...life The ride height for Nitro Stampede can be adjusted by adding or removing the clip on spring pre load spacers Instead of adding spacers to increase stiffness use stiffer springs Adjust the ride he...

Страница 9: ...e requires timely maintenance in order to stay in top running condition Neglecting the maintenance could allow dirt deposits and moisture to build up inside the engine leading to internal engine failu...

Страница 10: ...uire periodic maintenance and are intended to be used in high performance applications over an extremely wide range of running conditions and situations no warranties are expressed or implied that cov...

Страница 11: ...ixture is too lean Richen the high speed mixture page 7 24 Idle speed set too low Increase idle speed page 7 25 Fuel flow blocked Check that all fuel lines are clear with no pin hole leaks Check for d...

Страница 12: ...he engine from the chassis Turn the engine so that the throttle linkage to the carburetor will come out STEP 9 Changing the piston and sleeve assembly Use a 5 16 inch nut driver to remove the glow plu...

Страница 13: ...n also Rinse thoroughly with denatured alcohol and lube with after run oil STEP 13 Pull the sleeve straight up and out of the crankcase If the sleeve will not move rotate the crankshaft until the slee...

Страница 14: ...see step 14 STEP 25 To assemble the connecting rod and piston place a drop of castor oil in the top end of the connecting rod Insert the wrist pin through the piston and the top of the connecting rod...

Страница 15: ......

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