I have a traxxas tmaxx and I am having some problems with it. When it first starts up, the thing runs hard and pops wheelies all day long but after it runs for a couple minutes, then it starts spitting and sputtering. When it starts doing that, then shortly after, it will just die and wont start again but if you change glowplugs, it will start right up again but starts spitting and sputtering. I have tried adjusting the carb but doesnt help any. Could it just be that the carb is bad or what else could it be? Let me know guys Thanks

Youre getting the dreaded 1/2 tank to empty fuel delivery problem all T-Maxxes are afflicted with due to a poor tank design where the output nipple is deficiently small making it inadequate in the proper flow dept...I found the problem to have gotten worse when I added fuel filters to some of the trucks then I did some detective work and solved the case for my trucks to make them 3-4 tankfuls in a row runtime without problems

To cure my problems in all 6 of my T-Maxxes I removed the gastanks and stretched open the tank output with a little heat,an awl and a small allen wrench...Youll see that the hole before it enters the tip the hose slips onto is even smaller than the tip hole and once its all stretched larger and all the same size throughout,- the flow will stay as strong and consistent throughout the whole truck useage with no lean out conditions that make it run hotter and hotter until it quits and then you have to wait til it cools to re-start it..

If you dont think the mod works take off the tank...fill it with water and sit it in the sink and time how long it takes to empty.Mine took a little under 3-3/4 mins...Then mod the tank and do the same test..The modded tank will empty in half the time or less guaranteed with a pretty consistent flow throughout the whole evacuation,-like all 6 of my tanks..Then dry it out,reinstall it,reset your carb needles back to stock let it warm,tune it and test it out...Youll love the way it runs providing youve got no other underlaying airleaks at the slider boot,needle o-rings,carb base,fuel banjo bolt or engine backplate..

Sounds lean on your low side, richen it up 1 entire turn on your low and go from there, tune you high speed first though, what are your temps

Ok guys. I fixed the fuel tank and adjusted carb. Even took it to hobby shop so they can look at it. Still doing the same thing. Called traxxas, they sent me a brand new carb for it and still doing it. ANY MORE IDEAS.....LET ME KNOW. Im about to throw this thing away