take the right hand engine case off leaving the kickstart lever bolted to the shaft and you will see a clutch at the back of the engine and a variator at the front,take the variator off by undoing the nut on the crankshaft and the belt will come off then replace it with the new one and reverse the procedure i would suggest using some loctite on the nut and crank as the have a habit off falling off ,ok
adam bike doctor
December 2006