Belt slipping?

[blackwidow]

My son has about a month of riding on a new Trailmaster XRX mid buggy. Buggy has stopped climbing...engine still seems to run OK and revs out to wide open but no forward motion or very little....definitely doesn't want to climb hills.

Could the belt be slipping already? Could there be a problem with the centrifugal drive? Anyone have experience with this buggy and know where to start?

Thanks

[x-bird]

do you have pictures of the setup or a link to the buggy? if it's one of the 50 cc powered ones, there seems to be a problem with the clutches on those. I've read about some mods on Hammerhead and other versions of that size engine's clutch to stop this particular situation.