Yesterday, I attempted to quieten down the exhaust by swapping for another used muffler. Upon examination of the removed one, there was some missing metal from corrosion at the exhaust outlet, but the muffler case was fine. There was a lack of mesh inside.
I decided to fit another with a fully intact outlet, and it looked like it also needed more mesh inside, so I inserted some of that stainless steel dish scrubbing pad (not steel wool - the more coarse and porous stuff). It made no difference and some smoke came out the left side as well. It makes that pronounced crack sound which should be a lot more muffled.
I think the baffling I put in was not very effective and it needs the original type stuffed in. That doesn't explain the smoke out the side though. Maybe the bottom clip isn't located properly on the engine end?


Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!