Post by TheCmAn on Sept 26, 2011 21:59:16 GMT -5
Hey Folks. I have had my MC 54b for a couple months. The muffler on it is an old supertrapp that the previous owner cobbled together and has seen better days. The other day it unceremoniously spit its guts out onto the road and I was left with basically a straight pipe exhaust that was loud as heck and cried out "Hey! Look at the fat guy on the scooter!"
So, I started looking for a replacement but was not really excited about what seems to be available. I wanted it to be quiet, and I dont want to re-jet the carb just yet. Also, I dont have much of a budget.
I decided to make one, and fiddled around with some designs and a little math to make an effective reactive muffler that would be quiet but not too restrictive. I came up with a design, the materials cost less than $50 and it took me a couple hours to make. I used 4" exhaust pipe from Jegs, 1"ID EMT conduit, and some 16 gauge steel from home depot. The muffler uses 2 baffles and a chamber at each end. I have enough material left to make a couple more, and may fool around with the design, maybe calculate for a Helmholtz resonator or something. I will work on making some plans to post on here if anyone is interested.
Put it on today, and it is awesome. nice and quiet, with a nice deep sound at idle. The scoot is actually running much better and I suffered very little if any loss to my high end. I am going to have to paint it before too long, but I couldnt wait to try it out.
The Cman
So, I started looking for a replacement but was not really excited about what seems to be available. I wanted it to be quiet, and I dont want to re-jet the carb just yet. Also, I dont have much of a budget.
I decided to make one, and fiddled around with some designs and a little math to make an effective reactive muffler that would be quiet but not too restrictive. I came up with a design, the materials cost less than $50 and it took me a couple hours to make. I used 4" exhaust pipe from Jegs, 1"ID EMT conduit, and some 16 gauge steel from home depot. The muffler uses 2 baffles and a chamber at each end. I have enough material left to make a couple more, and may fool around with the design, maybe calculate for a Helmholtz resonator or something. I will work on making some plans to post on here if anyone is interested.
Put it on today, and it is awesome. nice and quiet, with a nice deep sound at idle. The scoot is actually running much better and I suffered very little if any loss to my high end. I am going to have to paint it before too long, but I couldnt wait to try it out.
The Cman
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