1983 Yamaha 30EN Outboards Service Manual, Page 59Get this manual
3 Remove the CDI magneto with the flywheel magneto pullerRemove the woodruff key from the crankshaft keyway
WARNING:
1Be sure to hold the openend wrench correctly so that it does not slip off the flywheel magneto puller when the flywheel comes off the tapered end of the crankshaft2 The flywheel magneto puller set bolts must be tightened evenly so that the flywheel magneto puller plate is held in parallel to the flywheel top