Suzuki LT 250R lacks power

[tyler250rrocks]

ok heres the prob the bike had some cash put in to in b4 i got it. well the firts prob when i got it. the pickup coil went out in it. then had the rong plug in it it needed an k an n. got those probs. runs good but but crab. it has a newer topend, pipe, and over sized carb. dosnt say if it was ported. so on dirt runs good but can not make it wheelie onlly a lil if i rev it and drop it but from sit still i can not pop it up. can on a stock blaster and banshee but not this bike. and then i was at the dunes. i couldnt rev and take of in second gear. like you can on any bike. so what dos this mean

PLEASE HELP:aargh:

[DirtDemon]

A lack of power could be caused by lots of things. I would start by doing a compression test. If the compression is good, then the next thing I would do is a leak down test. If everything seems ok after that, then it is probably just a matter of getting the jetting dialed in, maybe the carb is too big.

[tyler250rrocks]

whats a leak down test

[tyler250rrocks]

i have an lt 250r with pipe and k an n. for the bast weeks ive had probs cuz the over sized carb now i have a stock carb. idk the make of the pipe but i think it is a bills pipe dosnt says on it. but what size jetting would i use

[LT250R]

do you have your airfilter cover off or modified? The bigger carb will not run on there with lid on it suffocates.Bump it up 2 over on main and 1 on pilot and do a plug chop.

[tyler250rrocks]

she runs good now back to stock carb. the fmf runs stock jet size

[DirtDemon]

Tyler250rrocks

"Whats a leakdown test?"

That is where you seal off the intake and exhaust holes, pump the motor up with about 6lbs of air pressure and see how long it takes to bleed off. Google it, you will find plenty of info out there.

Edited July 11, 2010 by DirtDemon