‘77 Johnson 70hp Starter Troubleshooting

saltchuckmatt

Captain
Joined
Jul 19, 2019
Messages
3,374
Welp I figured it out! Where the solenoid grounds is bad. Just have to run a ground wire to the main ground/exhaust manifold. Once I did that the solenoid clicked. Starter didn’t crank but I have a spare.

Thanks again, everyone!
Test and make sure starter power is coming out of the solenoid when the "click" sounds.
 

HerrGruyere

Cadet
Thread starter
Joined
Sep 1, 2025
Messages
28
For those wondering: it’s running! The new solenoid ended up being stuck on. I threw the old/original one back on. Worked fine. The starter was wasted, so I threw a new one on. She cranked to life after like 15 years!

All that to find out the solenoid ground was toast.
 
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