1980 KZ440 LTD Mac 2 into 2 Advice

Thanks a ton for all of your help with this, Martin. I really appreciate it and I think that I'll remove the exhaust system tomorrow and bring that pipe with me to the hardware store to see what I can find.

TexasKZ wrote: If there is a muffler shop open nearby, I bet a guy there could whip up a suitable pipe in short order.

I actually think that there is a nearby muffler shop. Perhaps I'll give them a call on Monday if I can't find anything to work easily at the hardware store. Thank you for the suggestion.

TexasKZ has the better solution. my way is for cheapskates.

Lol, I may end up just going the cheapskate way. I called my local muffler place and they told me that their machine can only go down to pipes 1 1/3 of an inch, and the smaler pipe is around 1 1/4 of an inch. I haven't removed the crossover pipe yet (been riding too much haha) but I'll do it today or tomorrow and take it to a hardware store to see if I can find anything that fits.

You might be able to use his smallest size pipe when installed in conjunction w a crossover pipe gasket.
The partsnmore gasket is 33.5 mm OD = 1.32" approx. If 1.33 is the I.D., his pipe might fit fine. If it's the O.D., his pipe might be a tight fit over the gasket, but he should be able to expand it to fit. The gaskets are graphite or something & you should be able to tap the pipe into place over the gasket. The muffler shop would then adapt the other end to fit the RH muffler. I would assume he would use a 1.33" pipe, then flare one end to fit the RH side or weld on the proper size if it can't be flared to 38mm or whatever size your crossover pipe actually is.

LH muffler >> gasket + 1.33 x 6" pipe w other end flared to 1.5" << RH muffler (1.5" = 38mm)(1.33x6" or whatever length).

LH muffler >> gasket + 1.33 pipe + 1.5" section of pipe welded to 1.33 pipe << RH muffler (if 1.33 pipe can't be flared to 1.5").