professor
Active Member
The first pic is to show this particular muffler that is in 2 sections. it is made out of a small electric motor weather enclosure. It does not have to be in two sections. This is what I had on hand. A used fire extingisher or any cylinderical light steel tube would be fine. In my case I had to fill a couple of small holes and adapt a tube to one end:
The white you see is what makes this a lot quieter than a normal muff. It is fiberglas wrapped around a heavy wire screen. Any kind of fiberglas will do, even old window curtains made of the stuff.
Here is a pic of the insert:
Each end tube has holes drilled around the part of the tube that goes in the muffler housing and the end capped:
The drilled pipe could be one straight piece with a divider in the middle(maybe 2 dividers to separate the noise a bit rather than my offset style with 2 pipes.
This one is going on my 24 inch FS 6hp mountain bike. Just playing around and yelling into it- this thing is great.
Maybe I'll do a sound meter check at the rear of the bike later on.
The white you see is what makes this a lot quieter than a normal muff. It is fiberglas wrapped around a heavy wire screen. Any kind of fiberglas will do, even old window curtains made of the stuff.
Here is a pic of the insert:
Each end tube has holes drilled around the part of the tube that goes in the muffler housing and the end capped:
The drilled pipe could be one straight piece with a divider in the middle(maybe 2 dividers to separate the noise a bit rather than my offset style with 2 pipes.
This one is going on my 24 inch FS 6hp mountain bike. Just playing around and yelling into it- this thing is great.
Maybe I'll do a sound meter check at the rear of the bike later on.