hard to start, idles for a bit then dies....

[deathwish]

the other day i finished putting everything back together and i started it up and it ran fine but when i went to put the body pieces back on i though that i would adjust the carb a little so started it up again and it idled but when i gave it any throotle it wants to die... i took of the carb made sure it was all clean but it back on and it was even harder to start and dies within a couple seconds.....it alos revs up and down and i notice some sparks in the exhaust.. . this thing has given me soo much trouble i dont kno wut to do anymore......

[zoom]

mines doing the same thingexcept mines not th hard to crank it just idles up and down. i cleaned the carb and it didnt do it then the next day i cranked it up and and did the same thing it stared going up and downat a high rpm.

[deathwish]

does the bystarter have abything to do with it???

[MySpree]

i didnt have a bystarter for the longest time and it was fine with my scooter.

[deathwish]

well im gonna try running it without it and see what happens. but what exactly does that thing do???

[noiseguy]

Don't run without the bystarter; you risk leaning the engine out and ruining it.

[deathwish]

well thne i dont have a clue what the problem is i took of the carb a million times and its clean as can be so im at a loss.... and i dont kno much about floats but would that cause this problem???

[noiseguy]

If the float doesn't float in gas ie fills up with gas, that can be a problem.

[deathwish]

wel i took of the carb once more cleaned it all out checked the float, looked at the bystarter and it seemed to be okay, charged up my battery, put a new sparklug in, adjusted the carb and it started up the first try and ran great, i got it up to about 35 which i think is great....

[noiseguy]

Dirty spree carbs are the problem 90% of the time.