1978 Johnson 100 single cylinder not firing

[Joe Reeves]

In general, that cyl didnt fire, thats the issue. By swapping the coil I verified the coilnwas not the problem. Swapping the carb would verify that waent the problem.

I was thinking about post #12 where you said..............

"Went out this morning and fired it up. Briefly the cyl started firing, pulled the wire and the rpms dropped. Hmm.. after that it stopped firing again."

But yes, swapping the carburetors momentarily would tell the tale if the problem followed the carburetor.

[Ffarrell]

This morning I filled a squeeze bottle with 50:1 gas and squirted it in the lower carb. No effect. Could it be that the spark is arriving too late? Maybe a powerpack issue? The spark is definitely snappy.

[Ffarrell]

Somehow someone's spammed this thread but the moderator seems to have deleted them. Oh well.

Anyone else out there that may have ideas on this issue?