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9

the engine performance does not change, then you have exceeded 
the maximum safe lean setting.
If tuning for maximum performance results in engine temperature 
exceeding 300°F, try to increase airflow to the engine by cutting out 
the rear of the body, windshield, and front valance. If the engine 
temperature still cannot be kept in check, richen the high-speed 
needle slightly.

Adjustments 

Toe-in

Geometry and alignment specifications play an important role in 
your truck’s handling, so take the time to set them correctly. Set the 
steering trim on your transmitter to neutral.  Now, adjust your tie rods 
so that both wheels are pointing straight ahead and are parallel to 
each other (0° toe-in). This will ensure the same amount of steering in 
both directions. If you run out of adjustment, then the steering servo 
will have to be re-centered (see “Centering your Servos” on page 10). 

For increased stability, add 1°- 2° of toe-in to each front wheel. Use 
the turnbuckles to adjust the alignment.

Camber

The camber angle of both the front and rear wheels can be adjusted with 
the camber rods (upper turnbuckles). Use a square or right-angle triangle 
to set the camber accurately.  Adjust the front wheels to 0° of camber 
(wheel perpendicular to the ground). In the rear, adjust the wheels to 
1° to 2° of negative camber.  These adjustments should be set with the 
truck positioned at its normal ride height. 

 

Shocks

The four shocks on Nitro Stampede have the 
most influence on its handling.  Whenever 
you rebuild your shocks or make any 
changes to the pistons, springs, or oil, always 
do it carefully and in pairs (front or rear).  
Piston selection depends on the range of 
oil viscosities that you have available. For 
example, using a two-hole piston with a 
lightweight oil will, at one point, give you the 
same damping as a three-hole piston with 
heavier oil. We recommend using the two-
hole pistons with a range of oil viscosities 
from 10W to 50W (available from your hobby 
shop). The thinner viscosity oils (30W or less) 
flow more smoothly and are more consistent, 
while thicker oils provide more damping. 

Use 

only 100% pure silicone shock oil to prolong seal 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 height 
so that the suspension arms are slightly above being parallel to the 
ground.  Observe how the Nitro Stampede handles in turns. If it is 
picking up the inside rear wheel in hard turns, then stiffen the front 

suspension. If it is picking up the inside front wheel in hard turns, 
then stiffen the rear suspension. Proper set-up will add stability and 
help prevent roll-overs.

Gear Ratios

A unique Nitro Stampede feature is the ability to change the gear 
ratios. The final drive ratio of the gearbox is 2.81 to 1. Use the 
following formula to calculate the overall ratio:

Nitro Stampede comes with a 70-tooth spur gear and a 20-tooth 
pinion (clutch bell) gear. This combination will provide the best 
overall acceleration and top speed. If you want more acceleration and 
less top speed, then use a smaller clutch bell gear (fewer teeth).  For 
more top speed, use a larger clutch bell gear.

adjusting the Slipper Clutch

The Nitro Stampede features an adjustable slipper clutch on the spur 

gear to protect the drivetrain from sudden shock loads (such as landing 
off of jumps with the engine at full throttle). Under normal conditions, 
the slipper clutch should not slip. Before adjusting the slipper clutch, 
turn the model off. Do not adjust the slipper clutch while the engine is 
running.

Use the supplied wrench to tighten the slipper nut (clockwise) until  

it stops, and then back the nut out 1/4 of a turn. If you notice any 
decrease in performance after making changes to the slipper clutch 
adjustment, then it may be too loose. The slipper must not be allowed 
to slip during normal acceleration or the slipper could be damaged.

PRE-lOaD
SPaCERS

Pinion

22
22
22
20
20
18
18
16
16

Spur Gear

66
70
72
70
72
70
72
70
72

Final Drive

8.43:1
8.94:1
9.19:1
9.83:1

10.11:1
10.92:1
11.24:1
12.27:1
12.64:1

aCCElERaTION

TOP SPEED

Number of 

Spur

 Gear Teeth

Number of 

Clutch

 Bell Gear Teeth

x 2.81 = 

Final Drive Ratio

Changing the Clutch Bell and Spur Gears 

Remove the rubber exhaust pipe and 
the tuned pipe. Remove the electric 
starter drive. Loosen the four 3x8mm 
cap-head screws that hold the slotted 
adjusting plates to the engine mount. 

Remove the large E-clip on the clutch 
shaft and the clutch bell gear. Remove 
the ball bearings and install them in 
the new clutch bell gear. Reinstall the 
clutch bell gear and E-clip.  

Note

: Smaller clutch bell gears use 

smaller ball bearings. Refer to your 
parts list for the correct bearings. 
Reinstall the spur gear on the top shaft 
and secure it with the 4mm locknut. 

Remove the 4mm nylon locknut and 
the spring from the slipper clutch. Try 
to remove the slipper clutch as one 
assembly by holding the pressure 
plates together with your thumb and 
index finger.

Slide a strip of thin note paper 
between the spur gear and the clutch 
bell gear. Push the clutch bell gear 
against the spur gear and tighten 
the 3x8mm adjusting plate screws. 
Remove the paper; the gear mesh 
should be correctly adjusted.

Toe-in

Positive camber  

 

  Negative camber

Содержание Nitro Stampede 41094

Страница 1: ...COVERS MODEL 41094 KC1803 R00 121206 OPERATING INSTRUCTIONS ...

Страница 2: ...ecautions printed on the fuel container Model engine fuel is poisonous to humans and animals Drinking the fuel can cause blindness and death Handle with care and respect Model engine fuel especially when in a fuel dispensing bottle may look like a cool drink to a child Keep all fuel out of the reach of children at all times Do not place fuel containers on the ground where children can reach them w...

Страница 3: ...operates on the 2 4GHz direct sequence spread spectrum mAh Abbreviation for milliamp hour a measure of the capacity of the battery pack The higher the number the longer the battery will last between recharges Neutral position The standing position that the servos seek when the transmitter controls are at the neutral setting NiCad Abbreviation for nickel cadmium The original rechargeable hobby pack...

Страница 4: ... bind to one another the receiver in the model must be turned on within 20 seconds of turning on the transmitter The transmitter LED will flash fast red indicating a failure to link If you miss it simply turn off the transmitter and start over Always have the transmitter and receiver turned on before you start the engine Never turn the radio system off while the engine is running The on off switch...

Страница 5: ...peed it is best to position yourself in the middle of the truck s running area not the far end so you drive the truck towards and past your position In addition to maximizing the radio s range this technique will keep your model closer to you making it easier to see and control No matter how fast or far you drive your model always leave adequate space between you the model and others Never drive d...

Страница 6: ...C A new engine will typically have a tight fit between the piston and the top of the sleeve This is a tapered fit and a tight piston sleeve fit on initial start up 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 charge cycles to reach peak voltage and full capacity This is esp...

Страница 7: ...ood with fuel and stop turning 5 Once fuel reaches the carburetor the engine should quickly start and idle 6 Disconnect the EZ Start controller from the model 7 Proceed 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 your engine is patience The break in...

Страница 8: ...hout speeding up then richen the low speed needle 1 8 turn make several more high speed runs and retest 6 If the engine dies when you try to accelerate abruptly then the low speed needle is probably set too lean Richen the low speed needle 1 8 turn make several more high speed runs and retest 7 When the low speed needle is set correctly the engine s throttle response should be very quick Idle Spee...

Страница 9: ...uspension If it is picking up the inside front wheel in hard turns then stiffen the rear suspension Proper set up will add stability and help prevent roll overs Gear Ratios A unique Nitro Stampede feature is the ability to change the gear ratios The final drive ratio of the gearbox is 2 81 to 1 Use the following formula to calculate the overall ratio Nitro Stampede comes with a 70 tooth spur gear ...

Страница 10: ...tructions for this procedure are on page 6 We cannot stress enough the value of cleaning your air filter at the scheduled intervals The cleanliness and condition of your air filter directly influences the running life span of your engine Do not skip air filter maintenance Clean the outside of the engine of accumulated dirt oil and grime Accumulated grime will decrease the engine s ability to cool ...

Страница 11: ...gainst the engine head while pressing the EZ Start button The glow plug will not light unless it is grounded against the engine Glow plugs can be damaged by particles in the combustion chamber or by running the fuel mixture excessively lean Traxxas makes three glow plugs The standard hot plug part 3230 is the stock replacement plug for Pro 15 engines The optional super duty part 3232 plugs will la...

Страница 12: ...the engine from the chassis Turn the engine so that the throttle linkage to the carburetor will come out Changing the piston and sleeve assembly STEP 9 Use a 5 16 inch nut driver to remove the glow plug and copper gasket STEP 10 Use a 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 sle...

Страница 13: ...t pin 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 sleeve pushes up STEP 14 Rotate the crankshaft to bottom dead center Lightly grab the connecting rod with a pair of needlenose pliers and gently pull it off of the crankshaft journal Removing the clut...

Страница 14: ...e 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 Secure the wrist pin with the G clip Make sure the G clip fits securely into the groove machined in the piston Be careful not to scratch the sides of the piston STEP 26 Reinstall the crankshaft into the...

Страница 15: ...15 NOTES ...

Страница 16: ...mmunications The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Canada Industry Canada IC This Class B digital apparatus complies with Canadian ICES 003 and RSS 210 This device complies with Industry Canada license exempt RSS standard s Operation is subject to the following two ...

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