Topic: 77/78 550 stock pipes...????...

[Tom in Newcastle......Ontario]

I just picked up a right side set of stock pipes for my 78 k,and there are a couple differences..

There are mig plug welds instead of spot welds

There is a paragraph on emissions stamped on them

and the indents are a bit different..

I'm more curious than concerned,any thoughts

[Jonesy]

The paragraph is found on later replacement mufflers. It's a requirement for newer pipes made to the old designs as nowadays they don't meet noise standards.

Where did you find them? I need a new set of pipes for our '78 550K.

[Tom in Newcastle......Ontario]

They were on a bike I picked up .............not new..............but darn close...the other side were total rusted through junk.

[Tom in Newcastle......Ontario]

The paragraph is found on later replacement mufflers. It's a requirement for newer pipes made to the old designs as nowadays they don't meet noise standards.

Where did you find them? I need a new set of pipes for our '78 550K.

Jonesy...........more curiosity...so you are saying that these were Honda replacement,not stock(on the bike new).......... they seem to be made better,.......might be something to look for when buying used pipes

[anparkinson]

I don't know what these OEMs are like but they look OK

http://www.motostoricheitaliane.com/omol_70_80_90.html

You can still buy original new 2 & 3 K3 pipes from David Silver and I used these to make new 1 & 4. Just cut the muffler off and welded it on the down pipes turned round a few degrees. The indentations for the swing arm end up at the bottom so you can't see them.

Not perfect but much better than rusty dull mufflers.

[Tom in Newcastle......Ontario]

I don't know what these OEMs are like but they look OK

http://www.motostoricheitaliane.com/omol_70_80_90.html

You can still buy original new 2 & 3 K3 pipes from David Silver and I used these to make new 1 & 4. Just cut the muffler off and welded it on the down pipes turned round a few degrees. The indentations for the swing arm end up at the bottom so you can't see them.

Not perfect but much better than rusty dull mufflers.

 Thanks   I book marked that page..........just have to learn how to read Italian