My freinds V50 has a problem. It stops after a whiles use, its been like that the last year and half. Hes sick of it and havent really used it beacuse of that. I looked at it this weekend at got it to start easy and run nice, but then when i took it out for a test drive it died after ca 15 min. It had spark on the plug and every thing looked allright. But it just wouldent start, then after about half an hour i tried again and it started, but stoped after just a few minutes.
Does anybody have an idea of what could be wrong, could it be something as easy as the wrong spark plug? it got an 75 kit on and i think the plug was 6-8.