I just bought a 80 cc 2-stroke and on the instructions it says to cut BOTH rubber/fiber washers and to put BOTH on the inside of the wheel, over the hub. This way the sprocket is tight against the spokes (metal to metal). Is this right? I see you put one of those fiber washers between the spokes and the sprocket...The way I have it with both washers over the hub on the inside is working great -- over 30 miles so far and the chain has never slipped off and the sprocket is very true.