My 1975 cb750f supersport doesn't have a stock megaphone. I could see the previous owner welded this megaphone with no baffle. It used to be so loud till I made baffle which is a straight pine with holes.
I was wondering if someone has a picture of the original baffle? I attempting to make it as close as the stock one, maybe it will sound better.
How to I check if I gaining or loosing a back pressure?
I tried lollipop which was a washer on a bolt, but the sound stayed the same. I like to hear some of that pop pop thing like those new bike out there.
