Mid early 80's Mariner 20

[Barry the Limey]

Heloo people. My first post here. I've searched thru the board and can't find an answer to my prob. I've got an early/mid 80's mariner, the one made by yamaha, that has a misfire at idle.<br />I've stripped the carb as it needed the crud cleaning out. Starts and runs no probs. Just got this "miss" at idle revs.<br />Need a bit of info if you'd be so kind. Whats the plug gap on these engines. Is there a way of testing the coils and what else have I missed?<br />Thanking you in advance.

 

[Laddies]

Re: Mid early 80's Mariner 20

L-86-C or QL-86-C if you have an induction tach or even a timing lite you can tell which cyl its missing on