1975 Johnson 4HP 4R75, 4W75 Outboards Service Manual, Page 26Get this manual
SECTION IGNITION SYSTEM
Table of Contents
Page Description Theory of Operation Removal of Magneto from Power Head Magneto Di sassembly Cleaning, Inspection, and Repair Testing Coil, Condensers, and Breaker PointsMagneto Reassemb Iy Reassembly of Magneto to Motor Breaker Point Adjustment 4-2 4-2 4-4 4-4 4-5 4-5 4-7 4-8 4-8