Exhaust Ideas . . Add yours

[Warner]

Here's a couple of photos of the mods that I made to my exhaust. It took almost ALL of that 2-stroke "crackle" out of the exhaust note and didn't seem to adversely affect power at all. It's much quieter than stock...I wasn't too sure until it fell off on my way home from work one day and the noise level went WAY up! I added another elbow and a straight piece onto it as shown in the second photo. It's now mounted with the sturdy hose clamp shown in the second photo, NOT the plastic tie wraps shown in the first photo.


http://i224.photobucket.com/albums/dd265/warners_photos/MAB24.jpg


http://i224.photobucket.com/albums/dd265/warners_photos/MAB27.jpg


Warner

 

[levsmith]

Here's a couple of photos of the mods that I made to my exhaust. It took almost ALL of that 2-stroke "crackle" out of the exhaust note and didn't seem to adversely affect power at all. It's much quieter than stock...I wasn't too sure until it fell off on my way home from work one day and the noise level went WAY up! I added another elbow and a straight piece onto it as shown in the second photo. It's now mounted with the sturdy hose clamp shown in the second photo, NOT the plastic tie wraps shown in the first photo.


http://i224.photobucket.com/albums/dd265/warners_photos/MAB24.jpg


http://i224.photobucket.com/albums/dd265/warners_photos/MAB27.jpg


Warner

ok sorry if i sound dumb but what is the gold looking cylinder?

 

[Warner]

ok sorry if i sound dumb but what is the gold looking cylinder?

That is the 2nd muffler that I added. It is a 6 or 8 dollar Briggs and Stratton muffler designed for 6HP engines. Works good....


Warner

 

[alex]

unraw, i got the pipe off of ebay, it was for a pocket bike or something. It was all of around 20 something dollars. It does require some welding though...

 

[unraw]

Thats still way cheaper than the pre made expansion chambers for our engines.

 

[ZnsaneRyder]

Larger muffler?...You mean like this?

http://motoredbikes.com/showthread.php?t=14488&highlight=maximum+quiet

Try it you'll like it! ;-)

Andrew

I LOVE IT!!!!!!! That is a HUGE muffler for such a small engine! You mention in that thread that it's quieter than ebikes, that's amazing.

What's the majority of the engine noise you hear now? Is it the engine itself making noise from the moving parts inside the block, vibration to the frame, or do you still hear that exhaust some?

I may do that ASAP with my bike trailer. After removing the RPM governor, the exhaust on my engine got so hot that the screws for the muffler cover vibrated out, and now it's louder because of the open screw holes in my muffler + higher RPM. I feel a car muffler would be the best way to quiet down my engine even at WOT.