How to reduce the exhaust sound of Harley 750vh?

1. First, clean up the carbon deposits in the engine, air intake and throttle, which will cause poor exhaust.

2. Secondly, check the valve clearance, the tightness of the valve train and the fixing of the exhaust pipe. Loose fastening screws of the exhaust pipe head will lead to leakage of the exhaust pipe.

3. Then, check the exhaust pipe for damage and holes. Small holes can be pasted with tin foil.

4. Finally, check whether the muffler inside the exhaust pipe is damaged. The damage of muffler will reduce the noise elimination effect and make the sound louder.