<div>I explained the problem to traxxas support and I reciever this reply. Do you guys agree with what he said?</div><div>
</div><div>Hello </div><div>
</div><div>Start with a fresh plug. We recommend using the Traxxas glow plugs. For the TRX 2.5 or the TRX 3.3 engines use the SD plug (part #3232.....$7) or the .Super Duty Plug (part 3232X...$7).</div><div> </div><div>If you cannot find Traxxas plugs you can substitute the McCoy MC9 (cold) and the K&B 1L (medium).</div><div>Your best source for glow plugs will be your local Traxxas hobby dealer. You can find your nearest U.S. Traxxas dealer at this link! http://www.traxxas.com/support/dealerlocator </div><div>
</div><div>Next try resetting both of the mixture needles and the idle stop screw back to factory base settings. The high-speed needle should be threaded in (clockwise) gently until you feel resistance, and then backed out (counterclockwise) four full (360 degree) turns. The low-speed needle should be set flush with the slide ring located between the throttle arm and the low-speed adjustment screw. The idle stop screw should be adjusted to where there is a 0.7mm to 1.0mm gap between the slide valve and the inner side of the inlet tract of the carburetor. </div><div>
</div><div>Be sure to tune the high-speed needle first so that the engine will clear out with good top end power while maintaining a steady stream of smoke from the pipe. Next, set the idle and low speed adjustments together so that the engine idles down within 5 to 8 seconds after a few high-speed passes. The low speed should be lean enough for quick response, but it should also be rich enough to allow the engine to idle down to a low and steady idle. Remember that the idle gap should never be more than 1.0mm. If the engine is idling very low and sluggish, do not adjust the idle stop screw beyond 1.0mm. In this case, it would be a rich low-speed needle. The low-speed mixture would need to be leaned out little by little until the throttle response is crisp and the engine idles smoothly. </div>