So I installed that BSA muffler out of curiosity
I was surprised how restrictive the stock bullet muffler is... this photo is taken straight on. The tiny inside pipe is offset for some reason. Some engineer somewhere thought that was a good idea im sure.
The BSA exhaust also has some sort of baffling going on here, so I wasn't sure it would lean things out or not, but the openings are a bit bigger so I decided to try it...
I just used some more of my Honda CM parts I had laying around and an adapter pipe from the local auto parts store that I cut down and cut slits in so it could squeeze together. I didn't really care how it looked, this was just for testing purposes...
It took me FAR too long to get this to mount up with what I had on hand. I had to cut the slits in the BSA muffler deeper so the mounting bolt could reach the factory mounting spot. Even then I could only get one bolt in, which is a shame actually because the mounting holes are perfectly spaced for this to work, I just accidentally cut my adapter piece too short
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But it looks pretty decent I think!
Of course im going to improve the basket situation and clean it up looks wise. maybe remove the adapter pipe, they were really close in size, so maybe weld them together or figure something out that looks a little better there.
But the bike seems more happy with it and it sounds pretty good. Not that classic thump thump sound, but it sounds alright.
I had a hard time starting the bike, found out the spark plug was fowled from running it super rich after re-jetting the other day. Luckily I had one more plug on hand, so here's what the new plug looks like with only like 10 min of ride time.
A lot better looking than it was before I think. So I think the new muffler is leaning it out to a good point now. Ill have to put more run time on it to really say for sure. The ceramic on the plug is white on one side and black on the other so I can't really tell if its too rich or what yet. But happy to see progress!