will_start
Member
Hi,
I have an experience to post here about noise reduction.
I once lost the baffle that fits into the muffler.
The bike is three to five times louder riding without it.
I even had someone at work say they could here me on the Bus when I was
in a park 50 metres away.
So I was determined to make good of loosing the baffle.
My flat-mate said you could use a tin can and steel wool,
to make a baffle for the motor.
So, I used the end off a can of Red-Bull, as the right size.
I worked out by using my finger as a measure on the muffler,
that was the size of the can I needed, when I was at the store.
(It Would look so uncool with a tape measure at the store.)
I bought three bags of steel wool, giving me 9 balls of coarse
steel wool.
After filling a glass with the Red-Bull, which I could sip
then-on in.
Click here to see finished "product"
http://groups.msn.com/MotorisedBicycle/shoebox.msnw?action=ShowPhoto&PhotoID=1
I took the muffler off the engine next.
Wearing gardening gloves (safety first, or second after comfort for me)
Using a Stanley Knife (are they called that in the US),
I then cut the can about two inches long and shaped
the thing over the end with hammer.
Cut a hole in the can where the screws go into the baffle
usually, for wire to go through the holes.
Filled the muffler with three balls of steel wool.
You're supposed to seperate the steel wool a bit first,
so it will be loose in the muffler.
You could probably use more steel wool, if its packed tight
I reckon the bike would still run.
Put the can on, then wire the whole thing up,
however best works for you.
Nip off loose or dangerous looking bits.
There is a neat hole for the gases to escape,
as its a drinking can and not a foods-stuff can.
I used this for about a week and it did deaden
the noise.
Was about 60% down on the noise level between no muffler
and proper muffler.
I bought a new muffler and replaced it after a week,
for $35. The option of new baffle was not given.
The baffle repair was a neat $3.50.
CYA
Will Start.
I have an experience to post here about noise reduction.
I once lost the baffle that fits into the muffler.
The bike is three to five times louder riding without it.
I even had someone at work say they could here me on the Bus when I was
in a park 50 metres away.
So I was determined to make good of loosing the baffle.
My flat-mate said you could use a tin can and steel wool,
to make a baffle for the motor.
So, I used the end off a can of Red-Bull, as the right size.
I worked out by using my finger as a measure on the muffler,
that was the size of the can I needed, when I was at the store.
(It Would look so uncool with a tape measure at the store.)
I bought three bags of steel wool, giving me 9 balls of coarse
steel wool.
After filling a glass with the Red-Bull, which I could sip
then-on in.
Click here to see finished "product"
http://groups.msn.com/MotorisedBicycle/shoebox.msnw?action=ShowPhoto&PhotoID=1
I took the muffler off the engine next.
Wearing gardening gloves (safety first, or second after comfort for me)
Using a Stanley Knife (are they called that in the US),
I then cut the can about two inches long and shaped
the thing over the end with hammer.
Cut a hole in the can where the screws go into the baffle
usually, for wire to go through the holes.
Filled the muffler with three balls of steel wool.
You're supposed to seperate the steel wool a bit first,
so it will be loose in the muffler.
You could probably use more steel wool, if its packed tight
I reckon the bike would still run.
Put the can on, then wire the whole thing up,
however best works for you.
Nip off loose or dangerous looking bits.
There is a neat hole for the gases to escape,
as its a drinking can and not a foods-stuff can.
I used this for about a week and it did deaden
the noise.
Was about 60% down on the noise level between no muffler
and proper muffler.
I bought a new muffler and replaced it after a week,
for $35. The option of new baffle was not given.
The baffle repair was a neat $3.50.
CYA
Will Start.