Harley Davidson Exhaust Popping

The popping is a result of the airfuel mixture becoming very lean when the throttle is closed and the engine is rotating well above idle speed.

Harley davidson exhaust popping. It is nothing to worry about. Ever since Cobra introduced the 909 slip ons they have been getting requests for a version that aligns perfectly with the bags. I kind of like the sound on my bike even though it is muffled a bit.

Internally the louvered core provides the bark and back pressure needed to make your bike run as well as possible. Ways to reduce and possibly eliminate this popping are listed below and can vary between Harley-Davidson motorcycles and others. 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 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. The engine backfire on deceleration is also caused by the too lean airfuel ratio - A lot of people think that the backfirepopping in the exhaust is caused by too rich mixture but its actually the other way round. Agreed you should check the muffler to header joint as well as the exhaust flange nut but even if tight you will still get the decel pop.

All exhaust popping or backfiring on a Harley-Davidson motorcycle is caused by fuel combustion in the exhaust manifold or the header pipes. Expert Gear Advice From Riders. Generally speaking it may be caused by a an exhaust manifold leak.

It is also necessary that the exhaust system have rather open mufflers. 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. Ad Fast Free Shipping on Orders Over 40.

Unknown June 4 2017 at 703 AM. Vance Hines Titan 450 Slip On Harley Davidson Exhaust. For older Magnetti Marelli fuel injected bikes adjusting the fuel table to remove fuel can help reduce popping.