79 mercury outboard 90 hp (no spark)

shadow33

Recruit
Joined
Mar 9, 2009
Messages
1
i have 12 volts at each coil pack while cranking but no spark. anyone have a sugustion?
 

OldMercsRule

Captain
Joined
Nov 30, 2006
Messages
3,340
Re: 79 mercury outboard 90 hp (no spark)

i have 12 volts at each coil pack while cranking but no spark. anyone have a sugustion?

You need to follow the trouble shoot proceedure to check out yer switchboxes as It sounds like the stator is OK but that needs to be verified in the troubleshoot proceedure as well, (search the threads here or check yer engine manual).

I would also verify that you have the engine properly gounded.

Good Luck, JR
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: 79 mercury outboard 90 hp (no spark)

Thats not nearly enough to fire a CD coil (transformer) here the system test.
scan0003.jpg

scan0005.jpg
 
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