I have a problem with my brothers raptor it is an 02 and when you pull away the clutch seems to slip for a bit before engaing correclty, it sets off but slipping slightly. Also the bike strugles to go backwards.

Is it that the clutch is warn out or somone told me that it may be due to wrong type of oil can anyone help

 

ask him if he has done any adjusting to it on the handle bars, thats what i did and mine kept slipping after a while and i just turned it back and its been fine ever since

 

i have tried ajusting the lever but it makes to odds