1969 Evinrude Seahorse. 1.5 Hp problems. WITH pictures.

[t-man10]

I got this motor from my uncle who meant to restore it. after freeing up the cylinder, it started right up. after replacing a few gaskets and cleaning up what little rust there was, i ran it again, and for about 5 minutes it ran then just quit. i took of the side panel, where you can clearly see a brown substance built up. Could this substance be the cause of the engine stopping? or is it something else? please help.

 

[bobbyc]

Does it have a strong spark??? Will it run if primed??? What is the compression number???

 

[t-man10]

it has a strong spark, no it will not run if primed and im not sure about the compression

 

[bobbyc]

I'm guessing the rings are stuck(rusted) and cauasing low compression...try a 16 to 1 fuel oil mixture...that might give it enough compression to start and if you can keep it running, the rings may break free. The other alternative is to dis-assemble and evaluate the internals.