gilera stalker 50cc

[knight1]

hi my bike is a gilera stalker its a 50cc air cooled engine.

it snapped a belt a few weeks back , so i put a new belt on and started to drive it around again. but ever since ive changed the belt its been running really bad ! when u start off its like it was before the belt change (really fast for 50) that is untill you come off the revs, when you come off the revs its really relluctant to rev again which results in it being reallly sluggish , it does get to top speed again but it takes forever !
any suggestions welcome !!
cheers
tom

[tahrey]

Only guess, not being too au fait with scooters, is that the variator is sticking or is damaged somehow, meaning you're getting bogged down in high gear. Whether this was pre-existing (maybe caused the snap?), an effect of the break, or completely independent, well...

That or it's the wrong belt, causing a similar effect.

Why it doesn't happen from rest, dunno, may be that coming to a halt puts enough pressure on the system to force the pulleys back into low gear, but only slowing a little doesn't push them hard enough to overcome whatever's in the way.

Only a guess, mind.

[mazzda-007]

i had this problem with my stalker. i upjetted from a 53 to 60 jet. works a lot better with that.

how did you get your bike to do 50mph in the first place? im still trying with mine!
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gilera stalker 50cc going on gsxr 1000 i hope

[Nope.]