1976 70hp johnson has no spark

Annie

Recruit
Joined
Jul 19, 2007
Messages
3
I hope there is someone out here that can help me. I have a 1976 70hp Johnson. It sunk last year, I had it running after that a few times. I was out on the lake and it died.

I put a new starter in today and I have no spark at all. Does anyone have any suggestions on how to figure out what is going on. I'm new to this boating world and have little knowledge on these motors. Any help would be appreciated.

Thanks,
Annie
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: 1976 70hp johnson has no spark

annie, it could be the power pack, stator any of the electronics. they don't do well after getting dunked. corroded connectors.
 

reload

Petty Officer 1st Class
Joined
Jun 29, 2004
Messages
368
Re: 1976 70hp johnson has no spark

I would check all electrical connections with a ohm meter first, maybe corrosion.
 

Annie

Recruit
Joined
Jul 19, 2007
Messages
3
Re: 1976 70hp johnson has no spark

All the connections seem to be ok . How do I check the power pack? Also how do I check the coils to see if they are ok.Is there anywhere I can find the wiring diagram for this motor on line?... Be patient with me I'm not really sure how to test these things.
 
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