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Small Engine Repair - Mufflers

Posted on 12/13/24 at 9:52 am
Posted by Warwick
Member since May 2022
1974 posts
Posted on 12/13/24 at 9:52 am
Ive got a 9 hp Briggs&stratton that needs a new muffler. Engines been discontinued so the only OEM muffler i can find is expensive.

Will pretty much any B&S (or aftermarket for that matter) work, so long as it mounts correctly on the exhaust port?

or is trying to put a muffler designed for a 5 hp onto a 9 hp not going to work well?
Posted by gumbo2176
Member since May 2018
19427 posts
Posted on 12/13/24 at 10:15 am to
Have you removed the old muffler to see how it connects to the exhaust side of the engine?

That is the first thing to do and then take it to a mower shop or small engine repair place to try to match one up to it.
Posted by Warwick
Member since May 2022
1974 posts
Posted on 12/13/24 at 10:22 am to
yea, looks like a pretty standard mount to me.

Posted by El Segundo Guy
1-866-DHS-2-ICE
Member since Aug 2014
11408 posts
Posted on 12/13/24 at 10:49 am to
As long as it all lines up properly (and it fits), go for it.

I've modified small engine mufflers before, even small welding jobs to make them work with no issues.
This post was edited on 12/13/24 at 10:58 am
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
71071 posts
Posted on 12/13/24 at 12:31 pm to
quote:

Will pretty much any B&S (or aftermarket for that matter) work, so long as it mounts correctly on the exhaust port?



Yep. You may have to rig up a support for it, but for something like that anything that fits will work.
Posted by Loup
Ferriday
Member since Apr 2019
15721 posts
Posted on 12/13/24 at 12:46 pm to
If it fits up right it should work. I modified an old dirt bike muffler onto a push mower I'd snagged from the curb. Worked fine for a few years until rust on the deck made me scrap it.
Posted by Spankum
Miss-sippi
Member since Jan 2007
60605 posts
Posted on 12/15/24 at 4:53 pm to
You should be able to find a lot of mufflers that have that connection and gasket. What you have to search for is something that points the muffler in the right direction that you want to blow the exhaust.
Posted by Randall Savauge
Member since Aug 2021
576 posts
Posted on 12/16/24 at 8:27 am to
how does a muffler go bad? lol i guess rotted out.

that's an extremely common flange there. any chinese part on amazon should work. just try to locate the part number.
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