The flywheel (Rotor) on my sons KTM Pro JR 50 slips a little. The shop suggested I lap the rotor on.
Does this mean put valve gringing paste on crank and than slide rotor straight on and off a few times? Or,use some emery cloth and sand the paste on the crank itself not touching the rotor?
Does this mean put valve gringing paste on crank and than slide rotor straight on and off a few times? Or,use some emery cloth and sand the paste on the crank itself not touching the rotor?