My CB350F I recently picked up had open pipes with turn outs on stockish looking headers. I'm not too hung up on originality with this bike and it looked alright, but it sounded like a race boat with the open pipes. I needed a solution.
Step 1: Look at exhaust and realize there is no easy way to get a baffle in there because of the turn-outs.
Step 2: Put something in there anyway. This was a large Pepsi can with steel wool. It sounded good, but looked horrible. I'm not sure how the carbs are jetted, so It's a gamble if this is too much back preassure. The inside of the pipe is caked with carbon, so I can only imagine this helps.
Step 3: Realizing that step 2 looked horrible and was never going to be the final solution, this was easy to do.
Steps 4 and 5 invlove me buying cans of diced tomatoes , tomato paste and asparagus, then eating the contents. I'm sure you can take my word for it, although I have pictures if I get enough requests.
Step 6: I started to make some parts out of the cans as well as some sheet metal. I don't weld so its just cut/crimp/drill/rivet from here out.
Step 7: This is about the time that I took a break and went to the ER to have my finger stitched up. Sheet metal is sharp. I’ll wear gloves next time.
Step 8: This is the exhaust baffle I made before I punched holes in it
Step 9: Installed to cap!
Step 10: Since the smaller can is smaller than the exhaust pipe, I used a larger can to fill the gap and provide more area for packing.
Now I need to build another one, pack this and see how it sounds on the bike. I have a similar idea for how I can reattach the turn-out, but that is a bit further down the line.
