Why is my motorcycle louder when shifting?

Answer by  Amber40 (24961)

Well I would assume it is because of the clutch being pulled. Especially when you are accelerating. Essentially this is putting the bike into neutral which lets it spin slightly faster then if it where in gear. Try rolling off the throttle and shifting to see if that makes a difference.

Answer by  Allstar (2071)

When you pull in the clutch, you unload the engine, which allows it to rev up and get louder. It's also kind of bad for the engine. Reduce throttle most of the way when pulling in the clutch. It's called rev matching; it'll make the ride more comfortable too.

Answer by  peters (296)

It is louder because all the cylinder noise is coming out of the tailpipe due to the throttle body being shut. When cruising, some of the noise comes out the intake side, and some out the exhaust side, but when you close the intake side off and force everything to the exhaust side, it gets louder.

Answer by  bb (674)

sometimes motorcycles are louder when shifting because the engine revs up higher between gears. when the engine revs up higher, there is more combustion in the engine cylinder which causes more noise.