i posted a thread yesterday, i just that the title would attract more people to look at it and hopefully be able to tell me whats wrong....once again, as soon as i start the quad and take off, the tires dont spin as much as they should, they dont even spinout but the quad revs up as if the wheels were spining but after a little while of riding, and i come to a stop, it works just fine... a friend said i had to tighten the clutch, is this the case?