Stumble/Misfire just off idle

[The Male Whale]

Probably normal.  If the carbs are stock, the pilot circuit fuelling is going to be a shade lean and with a cool engine that could give your symptoms.  However, it would be made worse if you've some gumming in the pilot jets.  Try a tank or two of fuel with Redline fuel additive to clean the carbs.

And a set of plugs will do no harm unless they are fresh.


Starting these and letting them idle to warm up can "wet" a plug easily.


Whale