Chainsaw Repair

It displayed what looks like uuuuu. Zeros without the top. And then when I pulled it away it showed  mode 360.

this is how I do a muffler up for these. this is for the black painted brazed together mufflers.
self explanatory. I use a thin cutter in a dremmel.


depending if the assembler was sloppy with the braze, the front of the muffler might be stuck here. you'll need to work it loose carefully without bending it.


this muffler is pretty bronze free. 2 ways to get rid of the cat. get rid of this tack weld and remove the whole can--if it isn't also sealed down with bronze. it should pry out pretty easy.


or if it is stuck, I cut the top off the can and use a spade bit to remove the cat material. then clean up with a die grinder bit.
either way, I have found no difference in performance between these 2 ways.


then I open the whole hole


I have found no reason to go bigger than the stock sized opening. the only thing I do is remove the louvers.


and only open the deflector up a bit. anything else is just getting loud.




i'll leave it up to the individual on how to reattach the 2 parts. weld, braze or silver solder works. not jb weld

Thanks for the clear photos.

Philbert

You will probably have to remove the plastic limiters.  Some folk use a drywall screw.  These limiters are demanded by the EPA and in the US it is an offence (I'm told) to remove them but many do.  You can put them back once you get a good tune however so it will look stock.

Lee