i have a foreman 500 and i just installed a clutch kit in my bike last weekend, mine does jump when u put it into first gear or anything when i had it on the jacks but when u shift it into gear when on the ground sometimes it will want to hop...also sometimes (usually only when in 1st gear) it sounds like a squeeking kinda noise from the front of the motor, did i not push something far enough in when reinstalling my stuff...and when i shut down my bike it sounds like the piston is dropping out of the engine, i dont know if the cam or something is still spinning or if it is suppose to do that or whatnot
might ride it a little bit more and make sure its not just stretching the springs out or whatnot...try shifting a few different ways, shift when ur still on the gas a good bit and then like maybe just lift the rear axle up and shift through the gears with ur hand and see if it jumps or anything, i did that with mine when testing it out before i put it back together...
my guess would be on a smaller bike like a rancher if you dont have massively huge tires to get turning it is probably easier to move the bike along thus making it want to jump
might ride it a little bit more and make sure its not just stretching the springs out or whatnot...try shifting a few different ways, shift when ur still on the gas a good bit and then like maybe just lift the rear axle up and shift through the gears with ur hand and see if it jumps or anything, i did that with mine when testing it out before i put it back together...
my guess would be on a smaller bike like a rancher if you dont have massively huge tires to get turning it is probably easier to move the bike along thus making it want to jump