1985 Mercury 115 no spark on 1,3,5

1icewater

Recruit
Joined
Aug 10, 2017
Messages
1
I sure could use help on this one. The 1985 inline 6, 115 motor has no spark on 1,3,5. I put new spark plugs in. I replaced with oem stator, did not work then replaced the switch boxes with aftermarket ones did not work. Then I did the trigger oem. and replaced the rectifier. This did not solve the problem. Checked the spark plug wires, rotated coils on cylinder 1 and 2 this did not work. It will idle but again no spark on those 3. This motor has not been run much over the years, purchased new in 85. always stored inside . Any help would be appreciated, thank you.
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,937
Either low speed side of stator or switchbox or blk/yel wire is shorted to grnd on that box.
 
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