1996 Johnson Evinrude "ED" 90 CV 88 thru 115 Service Manual, P/N 507126, Page 110Get this manual
Indexing Flywheel, Erratic Ignition Internal power pack problems could cause power pack to fire erratically or continuouslyTo troubleshoot this situation, you must determine that each cylinder is firing at the correct time and no more than once per revolution1Disconnect the spark plug leads and remove all spark plugs
1,1 2Place the eraser end of pencil in the No.2 spark plug hole
Slowly, turn the flywheel by hand, clockwise, until the greatest length of the pencil is outside the spark plug holeThis indicates he No.2 piston is near top dead centerMark on the flywheel rim, directly across from the timing pointerLabel this mark "No.2
4Repeat Steps and for each of the remaining cylinders,