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10

Centering your Servos

Whenever your radio system has been removed for service or cleaning, 
the servos must be re-centered prior to installing the radio system in the 
model. If the radio system is installed in the truck, disconnect the servo 
horns from the servos. 
Connect the steering servo to channel 1 on your receiver and the throttle 
servo to channel 2. The white wire on each servo cable is positioned 
towards the center. Connect the red and black cable from the battery 
holder to the “batt” terminal on the receiver. The red wire is positive and 
the black wire is negative. 
Place fresh AA batteries in the transmitter and turn the power switch on. 
Turn the Steering Trim knob to the center position. Now install fresh AA 
batteries into the battery holder and turn the power switch to the “on” 
position. The servos will automatically jump to their center positions. 
Turn off the battery holder switch followed by the transmitter. The servos 
are now ready to be installed. Be careful not to move the servo shaft 
when reinstalling the servo horns. 

After-Run Procedure 

You must perform after-run maintenance on your engine whenever 
the model will be stored for longer than a few hours. Taking the time to 
prepare your engine for storage will reward you with longer engine life, 
easier starting, and better performance.
When a nitro engine is shut off, some excess unburned fuel remains in 
the engine. The methanol in model engine fuel is hydroscopic, which 
means it easily attracts and absorbs moisture. This moisture can cause 
rust and corrosion on the steel engine parts (crankshaft, bearings, wrist 
pin, and starter shaft) if the fuel is not removed from the engine. There 
are after-run oil products available from your hobby dealer or you can 
use WD-40

, a common household lubricant. To ensure your engine is 

protected from internal corrosion, use the following procedure:

1. 

Shut off the engine by pinching the fuel line closed. This allows most 
of the excess fuel to be consumed by the engine. Be sure the throttle 
is in the idle position. You may have to pinch the fuel line closed for 
several seconds before the engine stops. 

2. 

Completely empty the fuel tank. Use your fuel-dispensing bottle to 
suck out the old fuel. Do not mix the old fuel with your fresh fuel 
supply. If you leave fuel in the tank, transporting or handling your 
model may cause fuel to run into the engine.

3.  

With the fuel tank empty and the throttle at the idle position, try to 
start the engine. The engine will most likely start and run for a few 
seconds as it uses up any fuel remaining in the engine and fuel lines.

4.  

Once the engine stops, clean the outside of the engine with 
compressed air or spray motor cleaner. Once the engine is clean and 
dry, remove the glow plug power wire, glow plug, and air filter.

5.  

Open the throttle fully and spray a one-second burst of WD-40 into 
the carburetor and into the glow plug hole (

Caution! 

Wear safety 

glasses to prevent spray from getting into your eyes). If you are using 
after-run oil, follow the manufacturer’s instructions.

6.  

Place a rag or paper towel over the engine to catch any WD-40 or 
after-run oil that may come out of the carburetor or glow plug hole. 

7.  

Connect the EZ-Start

®

 controller to the model and spin the engine for 

10 seconds. 

8.  

Remove the rag or paper towel and repeat steps 5–7 two more times.

9.  

Clean and re-oil the air filter so it will be ready for use next time. 

10. 

Replace the glow plug, reconnect the glow plug power wire, and 
reinstall the air filter.

Maintenance 

Nitro Stampede 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 failure.

 The following procedures should be taken very seriously.

after each hour of running:

• Clean and re-oil the air filter. The instructions 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 itself.

• Tighten the wheel nuts (especially on the left side).

after each running session:

• Perform after-run maintenance on the engine. This clears the 

engine of destructive moisture and other corrosive deposits. 

This 

is extremely important for the life of the engine. 

• Inspect the gears for wear, broken teeth, or debris lodged between 

the teeth.

• Inspect the vehicle for obvious damage or wear. Look for:

 

1.

  Loose or missing screws

 

2.

  Cracked, bent, or damaged parts 

 

3.

  Cut or loose wiring 

 

4.

  Cut or kinked fuel lines

 

5.

  Signs of fuel leakage

Other periodic maintenance:

• 

Connecting rod:

 The connecting rod should be replaced when the 

piston and sleeve are replaced. Also replace the piston wrist pin and 

G-clip whenever the connecting rod is replaced. As with other internal 

engine components, connecting rod life depends on engine usage 

and the quality and frequency of engine maintenance. Inspect the 

connecting rod after three gallons of fuel have been used.

• 

Slipper clutch pegs 

(friction material): The slipper clutch pegs will wear 

over time and require replacement. The life of the pegs depends on 

how the slipper clutch was adjusted and how the Nitro Stampede was 

used. If the slipper will not tighten or you are seeing signs of wear on 

the face of the gear, then the pegs should be replaced. 

• 

Piston/sleeve: 

The life of the piston and sleeve will vary greatly with 

how the engine was used and maintained. The piston and sleeve 

should be replaced when they no longer seal effectively (loss of 

compression). Symptoms include the engine being difficult to start 

when warm, stalling when warm, and stalling when throttle is suddenly 

closed to idle. Replace the wrist pin and G-clip whenever the piston 

and sleeve are replaced.

Engine Troubleshooting 

The troubleshooting guide on the following page has been provided 
to help you in diagnosing and repairing common engine problems. 
Most difficulties with engines can be traced back to problems with 
adjustment, fuel quality, dirt blockage, or common parts that wear 
with everyday use.

Flooded Engine 

The engine can become flooded if it is primed too many times during 
the course of a routine start up. When the engine is flooded, the 
EZ-Start

®

 cannot turn the engine and it will appear to be locked. Use 

the following procedure to clear a flooded engine.

1.  

Remove the blue glow plug wire.

2.

   Remove the glow plug with the glow plug wrench supplied with 

your model. An 8mm (5/16”)  nut driver will also work.

3.

   Plug in the EZ-Start and turn the truck upside down.

4.

   Push the EZ-Start button for several seconds to clear the excess 

fuel from the combustion chamber.

5. 

Turn the truck over and re-install the glow plug with gasket.

6.

   Reconnect the blue glow plug wire.

7.

   Remove one of the motor wires from the EZ-Start motor.

8. 

Push the EZ-Start button for several seconds. This lights the glow 
plug and burns off any remaining fuel.

9.

   Reconnect the EZ-Start motor.

10. 

Do not prime the engine. Partially open the throttle and press the 
EZ-Start button. The engine should start immediately.

Glow Plugs 

The glow plug in your engine is a consumable item that  
must be replaced periodically to maintain peak performance  
and starting ease. To test for a leaking glow plug, place a few drops of 
fuel around the base of the glow plug when the engine is cool. With 
the engine running, look for bubbles around the glow plug. If the 
gasket is leaking, tighten the plug or replace the gasket. 
If the “Glow Plug” LED fails to light, the glow plug may be bad 
or broken.

 However, glow plug performance can deteriorate 

significantly before the element actually burns in two. 

The only 

sure way to test for a faulty glow plug is to replace it with a new 

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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