1971-1973 Arctic Cat Snowmobiles Factory Service Manual, Page 37Get this manual
ENGINE SERVICING (TVVIN CYLINDER) 15Pull the flywheel straight off the crankshaft and remove the flywheel puller from the flywheelCAUTION: Always place the flywheel on clean, dry areaDamage may result if dirt and other foreign particles come in contact with the flywheelPosition magnet ring upward18Disassembly of the coil bracket is accomplished by removing the two (2) screws and lock washers that retain coils to crankcaseWhen screws have been removed, both coils can be disassembled from the coil bracket
Disassemble the coil cover by removing the two (2) screws, lock washers, and washer plateNOTE: Spray the spark plug lead wires with lubricant or silicone to facilitate sliding the coil cover up the wires