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I just bought an XTM X factor 24.7 monster truck. Need help tuning it
does not run. is there anyone who can help?
find out wat the base carb settings are, prime th engine by blowing into the exaust pressure line. fire it up. if it wont start give it some throttle trim on the controller. (i always have to to get my truck to start) then from there tune the hsn first (normaly leaner than the base setting) lean it 1/8 turn at a time untill there is just a small stream of smoke comming from the exaust. (dont go to lean tho this can ruin your engine) then fro there do the lsn let the vehicle idle for about 5-10 seconds then punch the gas. if it bogs down or blows excesive smoke lean it an 1/8 repeat until it hase nice exceleration without boggy down (again dont go to lean)
IF THE ENGINE IS BRAND NEW MAKE SURE TO BREAK IN THE ENGINE BEFORE TUNING OR DRIVING!
hope this helps you out! good luck and have fun!
with a three needle carb I'm not so familiar, you have a low, mid, and high needle. from wat I've herd you shouldnt touch the mid needle from base settings. so you would tune it exactly the same as a 2 needle
https://www.rcnitrotalk.com/forum/showthread.php?t=60832
i belive this will tell you EVERYTHING you need to know and even more