engine backfires at varying speeds, especially when deceleration
1998 royal star motorcycle
When at cruising speeds and when slowing down in deceleration the engine backfires. Have checked all fittings to ensure tight and replaced gaskets. Adjusted carbs to try different fuel air mixtures.
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I have found out that in a multi-carb system, the carburetors need to be synchronized. That eliminated the backfiring.
by ironmonkeyto