Post by mmcl26554 on May 18, 2012 19:39:34 GMT -6
Peace racer 150.
Since mile "0" (now 850 miles) There has been a strange exhaust noise (a Buzzing sound) between 40-45 mph with light throttle. Noise goes away if I increase power or coast. I'm certain it is some kind of exhaust harmonic noise. Has anyone dealt with this and fixed it?
5/31/12 Update
I FOUND THE NOISE!
After playing with the exhaust and finding nothing I finally tried thumping on various parts of the scooter and muffler with a rubber hammer, suddenly when I hit on the right rear corner of the gas tank I heard a noise very similar to the one I had been hearing. A closer look revealed there is a rather thin cross bar under the gas tank, but about a 1/16 of a inch away from the tank. It would resonate when the exhaust sound matched the resonant frequency of the metal bar. I slid a plastic putty knife I had which fit firmly between the bar and gas tank. NO MORE NOISE. I always suspected something like this but couldn't find it. So if anyone else has a similar problem this is what to look for!
Michael
Since mile "0" (now 850 miles) There has been a strange exhaust noise (a Buzzing sound) between 40-45 mph with light throttle. Noise goes away if I increase power or coast. I'm certain it is some kind of exhaust harmonic noise. Has anyone dealt with this and fixed it?
5/31/12 Update
I FOUND THE NOISE!
After playing with the exhaust and finding nothing I finally tried thumping on various parts of the scooter and muffler with a rubber hammer, suddenly when I hit on the right rear corner of the gas tank I heard a noise very similar to the one I had been hearing. A closer look revealed there is a rather thin cross bar under the gas tank, but about a 1/16 of a inch away from the tank. It would resonate when the exhaust sound matched the resonant frequency of the metal bar. I slid a plastic putty knife I had which fit firmly between the bar and gas tank. NO MORE NOISE. I always suspected something like this but couldn't find it. So if anyone else has a similar problem this is what to look for!
Michael