1978 Johnson 175, 200, 235 HP Outboard Service Repair Manual P/N JM-7810, Page 50Get this manual
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1 Set spark checker gap to 716" (11 )
Weak or e1 Tatic spark from three coilscheck cha1'ge coil output into Power PackStep 3
dNo spa rk f1'om outputStep 3 Spark strong and steady fi