Reply To: 1967 Evinrude Lightwin won’t start/run

[mierla]

Thanks for the reply, Ronaldu.

I did try it without the silencer after I shot the video, with the same result: no go unless you shoot fuel straight into the carb.

I’ll double-check, but I believe the spark plug wires are on the correct plugs. The top one still has the little metal band that says “top” on it, but it’s not out of the realm of possibility that whoever had the motor before me had them swapped around. I’ll give that a go.

As for the carb(s), for the first one, I did remove the welch plug and the lead shot, sprayed/soaked it all with carb cleaner, ran a strand of wire through all the little holes, and cleaned it out with compressed air before putting it back together with a carb kit. That first one has what I now think is a not-quite-compatible high-speed adjustment needle kit, and the threads were pretty well stripped on the bowl where the needle valve goes. When the motor started..not..starting.. I noticed it was leaking a little fuel around that adjustment valve, so I thought, ahha, that’s the problem, and ordered a second carb from Ebay.

That second carb just has a high-speed plug, not a needle. When I took the bowl off and inspected the jets, they all looked clean so I didn’t go as far as pulling out the welch plug or the leadshot, though I did spray carb cleaner through all the orifices like they do on the Lightwin carb tune-up on outboard-boat-motor-repair.com

Maybe I should try the second, non-leaking carburetor bowl on the body of the first carburetor that I completely cleaned and rebuilt?