Here. Read and follow these instructions. BTW magnetos require clean and square point faces to deliver max spark.
Access to breaker point inspection and timing adjustment is provided by removing small cover on left side engine cover. Ignition should occur, breaker points just open, as "F" mark on flywheel aligns with timing mark (TM-Breaker points should just open as "F" mark on flywheel aligns with timing mark (TM). Timing ts adjusted by varying breaker point gap within recommended range of 0.3-0.4Mfyi.). Timing is adjusted by varying breaker point gap. Normal breaker point gap, with timing properly set, is 0.3-0.4MM (0.012-0.016 inch). Breaker points should be renewed if proper timing is not possible within range of 0.2-0.6MM (0.008-0.024 inch). Flywheel must be removed to renew breaker points. Flywheel retaining bolt should be torqued to 1.8-2.3 kg-m (13-16.6ft.-lbs.). High tension ignition coil and ignition
condenser are frame mounted beneath fuel tank. Alternator current is converted to DC by a silicon rectifier and used for battery charging and indicator lights. A 6V-6AH battery and a 10 A fuse are used in the system.