Motorcycle backfire on deceleration fuel injection Oct 19, 2023 · Backfire on deceleration or acceleration on a Harley Davidson is due to the burning of excess fuel in the carburetor’s intake port. There’s a lot of discussion about popping on deceleration and I have this problem myself. This sound, characterized by a series of pops or bangs when rolling off the throttle, can occur in various motorcycle models, particularly those with modifications. If a motorcycle backfires down through the entire RPM range during deceleration, then most likely the injectors are not turning off as intended. Likewise, popping while deceleration is one of those problems for motorcycle users. Motorcycles backfire when fuel combustion takes place in the exhaust pipe. Understanding the mechanics behind this occurrence is crucial for every motorcyclist, as Oct 12, 2023 · Deceleration popping is a common occurrence in motorcycles and is typically caused by a rich or lean air-fuel mixture in the combustion chamber, or or fuel injection issues otherwise. Jul 27, 2025 · Why is your motorcycle backfiring? Discover 11 shocking causes and how to fix them fast! Learn how to prevent backfires and keep your bike running smoothly. May 7, 2025 · Learn about motorcycle backfire causes plus how to fix motorcycle backfire on deceleration and acceleration with insights on our blog at West End Motorsports. The bike has a JD jetting fuel injection tuner on it. vtjm dzcjb jizt lxki zwtugnn nyrg hnx rofi sqmpsja iznn dbnovfh osovurv kaxa aeri yyes