Me. I have an rs4-2 I had it running so frigging perfect until servos started acting up. I could pull it out of my box.. Prime it. Put glow warmer on and pull the starter one time and it would run PERFECT!. Now i have messed with the carb because i thought thats why it was dying but it was the servo sticking it shut. So now im lost. I have tried and tried and tried.. And even when i do get it started It will run great until the motor gets warm, Then it seems to lose power and will eventually die at low rpm when im not gassing it wide open. But until then it sounds good, and smokes well and has lots of power. Did i damage something major? or Is my tuning skills not up to par. Please help rc gods.

no one?

lsn probably needs adjustments. if you find the factory needle adjustments it'll give you a good baseline and you can go from there. but if you're still having trouble, not to scare you, but dieing when its warmed up can sometimes be a sure sign of a worn out motor in need of a rebuild, but i would play with the needles some more, mabye an idle adjustment.

if it started really easily it may have been because it was running lean, but it also would depend on the ambient temp. two storkes run best before they blow up, cause they usually end up running lean.

crap. I think your prolly right. Can you tell me what exact model i have Just by looking at it? Thanks. And how much is rebuild kit?

i'm not sure, i'm not a huge hpi guy. it may have one of the nitro star motors in it. look on the pullstart cover for the engine name.

anyone else.