1974 merc 65hp no fire

85 BOMBER

Seaman
Joined
May 31, 2010
Messages
67
Greetings all! I have a 1974 merc 65hp 3 cyl model no 3815866. It is not getting power to the coil. I have no voltage coming out of the lower (green) terminal on the switch box. Does this mean I have a bad switch box? Engine spins over fine, but no spark from coil. Thanks for any input!
 

stormmnv

Petty Officer 3rd Class
Joined
Nov 12, 2011
Messages
95
Re: 1974 merc 65hp no fire

go to www.cdielectronics.com they have a full test proceedure on line.
they also have good replacement products that you can order from iboats...
 

coolbri70

Lieutenant Commander
Joined
Oct 6, 2011
Messages
1,554
Re: 1974 merc 65hp no fire

make sure the coil has a good clean ground, then check to see if it is getting current, if it is not check where it comes out of the switch, if no current found there check if the switch is getting current if it is then its likely the switch if not check your fuse then battery connection?
 
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