1997 Johnson/Evinrude EU 25, 35 HP 3-Cylinder outboards Service Manual, Page 110Get this manual
Total Output Test, Step 1
Good Spark, Motor Runs Good Spark, Motor Doesn't Run No Spark On One Cylinder No Spark On Two Cylinders
Good Spark, High Speed Misfire
No Spark On Any Cylinder
Check Other Systems Go To Step Check Timing Test Ignition Coil, Page 3-10 Visually Check SensorEncoder
Go To Step 2
Substitute Ignition Module