1974 Johnson 135 HP Outboard Motors Service manual, Page 37Get this manual
Figure 4-11Motor Rurming at 22 Advance iming
Figure 4-12Terminal Board
TROUBLESHOOTING THE MAGNETO COIGNITION SYSTEM
Read through before first attempt at troubleshooting the ignition
systemINTRODUCTION
The magneto "C .D ignition is simple system to troubleshootIt requi res the use of a: