I have a 2000 Harley-Davidson, v-twin, heritage springer softail, that I have had the carb changed on it, whic

h I have had backfiring problems on deceleration. Any advice on how to get rid of this backfiring would be appreciated. thanks…plugs and wires and everything else has been changed.

Based on the short facts provided, I’d agree with everyone who says you’re running too lean. Carb farts are usually caused by a lean condition(not enough fuel to air ratio). Since it ran allright(I assume) before you changed carbs, try going to the next size up jets for your new carb and see if that helps. Don’t continue to run in a lean condition for too long as it will mess up your valves, etc. Harleys are designed to run rich in order to help cool the combustion process.

2003 Harley Davidson Heritage Springer Softail Menomonie Eau Claire WI WI

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