3. Install: woodruff key AC magneto rotor NOTE: _ Before installing the rotor, clean the outside of the crankshaft and the inside of the rotor. After installing the rotor, check that the rotor rotates smoothly. If not, reinstall the key and rotor. 3 4. Tighten: AC magneto rotor nut 1 2 NOTE: _ While holding the AC magneto rotor 2 with the sheave holder 3 , tighten the AC magneto rotor nut. 1 Sheave holder 90890-01701 Primary clutch holder YS-01880-A 5. Install: AC magneto cover lead holder 1 AC magneto cover bolts 1 NOTE: _ Tighten the AC magneto cover bolts in stages, using a crisscross pattern. 4 - 48 AC MAGNETO ENG T.R. 70 Nm (7.0 m · kg, 50 ft · lb) T.R. 10 Nm (1.0 m · kg, 7.2 ft · lb)