john_bud
ArboristSite Operative
Lots of great info here... too much. I tried, I really really tried, but the temptation was just too great 
Had to pull the muffler and show it who's boss!
didn't think to get the "before" pictures, but the only outlet on the stock muffler is about the size of my pinky finger nail. Pretty small and the path the exhaust needs to take is twisted and blocked by the screen too. Here's what I did to help "correct" the situation.
1) using a 3/16" round carbide burr in a air grinder, the factory muffler outlet was opened up, but the mount for the screen was retained.
2) then working from the back side of the muffler, the "pipe" that the exhaust travels in as it is routed to the tiny exit was given a opening.
slightly different angle...
3) then I attempted to copy the louver look Mr "blsnelling" does when he mods a muffler. for that, a diamond coated cutting wheel was put on the dremel. A quick 3 slats were cut and the fronts were slightly lifted. No, there is no chance anyone will confuse my amateur hacking with the master's work! But, there should be more gas exiting than before.
The time involved was short. I cut some of the large butt end of the oak dropped earlier. The saw seems stronger, but it could all be in my head! Anyway, it is louder.
Just thought I'd share and give back in some small way for all the learning this site has provided!
Had to pull the muffler and show it who's boss! didn't think to get the "before" pictures, but the only outlet on the stock muffler is about the size of my pinky finger nail. Pretty small and the path the exhaust needs to take is twisted and blocked by the screen too. Here's what I did to help "correct" the situation.
1) using a 3/16" round carbide burr in a air grinder, the factory muffler outlet was opened up, but the mount for the screen was retained.
2) then working from the back side of the muffler, the "pipe" that the exhaust travels in as it is routed to the tiny exit was given a opening.
slightly different angle...
3) then I attempted to copy the louver look Mr "blsnelling" does when he mods a muffler. for that, a diamond coated cutting wheel was put on the dremel. A quick 3 slats were cut and the fronts were slightly lifted. No, there is no chance anyone will confuse my amateur hacking with the master's work! But, there should be more gas exiting than before.
The time involved was short. I cut some of the large butt end of the oak dropped earlier. The saw seems stronger, but it could all be in my head! Anyway, it is louder.
Just thought I'd share and give back in some small way for all the learning this site has provided!
