1973 Mercury 40hp no spark

wakruem

Cadet
Joined
Jul 4, 2002
Messages
26
I have a 1973 Mercury outboard 40 hp Model 400<br />w/ Thunderbolt Ignition. The motor has been<br />sitting in my shed for the past 3 years. I just started working on it to get it running again.<br />I have replaced the solonoid with a new one.<br />Also replaced wires from solonoid to starter and<br />from solonoid to battery. The motor cranks but will not fire. I have new spark plugs as well.<br />Anyone have any ideas.<br /><br />Thanks,<br /><br />Wayne
 

Bear

Lieutenant Commander
Joined
Mar 1, 2001
Messages
1,627
Re: 1973 Mercury 40hp no spark

Do you have a good spark at the plugs?<br />Are the plugs getting wet?
 
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