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geezer#99 · 06-28-2022, 09:43 AM

Backfire thru the carb is usually lean mixture and retarded timing.
What main jet is in it now?
What is your initial timing set at?
How much vacuum at idle?

06-28-2022, 09:43 AM	#2
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,515	Re: Stromberg WW Main Jetting Recommendation Backfire thru the carb is usually lean mixture and retarded timing. What main jet is in it now? What is your initial timing set at? How much vacuum at idle?