1978 Johnson 175, 200, 235 HP Outboard Service Manual, Page 44Get this manual
APort Side
BStarboard Side 3Spark plugs 4Ignition coils 5Terminal board Figure 4- 2Ignition Components primary through SCR #2 and back to the capacitor, inducing high voltage into the ignition coil secondary, firing across the spark plug gap of cylinder #2SCR #2 returns to its non-conducting state and the capacitor is recharged620 amp fuse 7Motor cable connector
1Electrical component brackets 2Power packs
7The first pole (slot) of the sensor magnet which rotated 90 now travels an additional 30 where it will pass sensor #3, developing positive pulse to turn on SCR #3The capacitor's energy is discharged through the #3 ignition coil primary through SCR #3 and back to the capacitor, inducing high voltage into the ignition coil secondary, firing across the spark plug gap of cylinder #3SCR #3 returns to its non- conducting state and the capacitor is recharged