My friend got a 05 polaris sportsman 500 ho from a guy.Now i got the 4 wheeler from him when he got it the cylinder was off from it so he bought a new piston and rings and cylinder for it. He put them on and now you cant really turn the motor over by hand with the starter rope. It doesnt have a starter on it so i been using the starter rope for now. I do know its out of time. I never timed these before so can anyone explain to me how to time it i know i have to put the piston at tdc. Can someone tell me how to time the cam do i need to take the sprocket off the cam and line it up then put it back on? Or how do i time that. Thanks!!!