Arpilia SR50 2t  By  traktori (Read 229 times)

Hello ,
Cant find the problem , my aprilia drives very well but only problem is when going uphills it stops and wont drive but if I twist throttle down and up two times it starts driving again from standstill
I cleaned airfilter and carb , changed sparkplug , variator rollers and belt .
My thoughts is maybe problem standa to clutch or spring ?

Thanks for help