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.

Harley davidson exhaust popping. 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. 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. The popping is caused by unspent gas building up in the cylinder or within the exhaust header on decel and then finally the heat or spark will set it off.

It is nothing to worry about. Cobra 909 Uppercut Slip On Harley Davidson Exhaust. It is also necessary that the exhaust system have rather open mufflers.

All exhaust popping or backfiring on a Harley-Davidson motorcycle is caused by fuel combustion in the exhaust manifold or the header pipes. Vance Hines Titan 450 Slip On Harley Davidson Exhaust. Ad Fast Free Shipping on Orders Over 40.

Exhaust leaks can cause decel pop make sure the exhaust is sealed completely at the motor and at any other connections. Check the slip-on connections and also where the header joins the cylinder. Loosen and retighten the nuts holding it together at the cylinder head exhaust port.

Unknown June 4 2017 at 703 AM. 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.

Timing even slightly retarded will also greatly contribute to this popping. Depending on the cam you run also has a effect on popping when decelerating. Just pull it off check the gasketif its worn at all replace but most often its fine.