Harley Davidson Exhaust Popping

For older Magnetti Marelli fuel injected bikes adjusting the fuel table to remove fuel can help reduce popping.

Harley davidson exhaust popping. When any unburnt fuel exits the cylinder like on decel the air that can leak into the system will cause the mixture in the system to ignite causing a pop. Internally the louvered core provides the bark and back pressure needed to make your bike run as well as possible. Popping is basically caused by a leak in the exhaust system possibly at the head pipe or at a joint in the system that draws in air.

It is also necessary that the exhaust system have rather open mufflers. I kind of like the sound on my bike even though it is muffled a bit. Ways to reduce and possibly eliminate this popping are listed below and can vary between Harley-Davidson motorcycles and others.

Vance Hines Titan 450 Slip On Harley Davidson Exhaust. Check the slip-on connections and also where the header joins the cylinder. Just pull it off check the gasketif its worn at all replace but most often its fine.

All exhaust popping or backfiring on a Harley-Davidson motorcycle is caused by fuel combustion in the exhaust manifold or the header pipes. A fuel pak may help to rid of some of the popping but I would first check for any leaks in the system usually the main culprit. Ever since Cobra introduced the 909 slip ons they have been getting requests for a version that aligns perfectly with the bags.

Loosen and retighten the nuts holding it together at the cylinder head exhaust port. In fact one should expect a well-tuned high performance engine to pop and crackle when the throttle is closed at high rpm. When the Harley is backfiring with the stock exhaust system still intact it might signal the exhaust pipe weakening or the muffler is malfunctioning.

Popping on a Harley is not uncommon and many riders rather enjoy the light popping. The HD ECM does not shut off fuel on decel so there is some uncombusted fuel that hits the hot baffles in the muffler and burns off causing the popping. Ad Fast Free Shipping on Orders Over 40.