1979 70 horse johnson

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: 1979 70 horse johnson

Hey loghomer....where is Oregon, Ohio???<br /><br />No spark....well....there are several things that can cause a no spark thing. As TMD posted, the power pack is usually the likely target. But the power coil in the stator could also be bad. The kill circuit from the key switch could also be at fault. Not likely all the ignition coils went south at the same time or the timer base under the flywheel went bad so your looking at the power pack or the kill circuit or power coil. If yer not familiar with troubleshooting the systems, you can spend some money and get an manual for the engine or take it to a mech for troubleshooting. But it would be nice to know that the right component is being replaced to solve the problem.
 

loghomer

Seaman
Joined
Aug 24, 2003
Messages
52
Re: 1979 70 horse johnson

Oregon, Ohio is a suburb of Toledo on lake Erie. Now, what does the power pack look like, so I have an idea of what Im about to destroy
 

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: 1979 70 horse johnson

Look on the righthand side of the engine for a "black box". It will have three harness' coming off it. Two of the harness' will connect to the two that come from under the flywheel and the third will connect to the ignition coils wire harness.
 
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