1971-1973 Arctic Cat Snowmobiles Factory Service Manual, Page 22Get this manual
ENGINE SERVICING (SINGLE CYLINDER) 31Assemble the emergency rope pulley to the flywheelUsing flywheel holding tool to hold the flywheel, slightly torque the three (3) emergency rope pulley bolts
Insert the magneto wires through the hole .in the crankcase and seat the rubber grommet in the holePosition the magneto assembly per the scribe mark made on the crankshaft during disassemblyTighten the two (2) screws securely as this will insure nearlycorrect timing32Install the special washer and flywheel nutHold the flywheel with flywheel holding tool and torque the nut to 56 ftIbsRemove auxiliary rope pulleyBend locking tabs of the special washer to properly retain flywheel nut