Exhaust cannister rubbing on swingarm

[Habu]

I searched on this topic and didn't find anything.....

I recently had my swingarm stretched 6 inches (welded extension). When I went to put everything back together, I found that my exhaust cannister touches the swingarm. I'm running a Yosh RS-3 full system (stainless with carbon fiber can), and the lowering links are set as high as they will go - which is stock length I believe.

It looks like the change in geometry causes this problem now that the bike sits lower due to the longer wheelbase. The angle on the mid-pipe is angled in towards the swingarm, which works fine with a stock wheelbase, but rubs now that it's lower and 6 inches longer.

I've considered a bunch of different options including: 1) having a local exhaust shop heat up the mid pipe and bend out the angle 1/2 inch, 2) installing a baffle in the mid pipe to create backpressure and running it without the cannister

Any other thoughts/suggestions?

Much appreciated.

 

[him]

Your bike does sit lower once you strech the swing arm. i had my bike lowered and inorder to keep teh swing are frm rubbing i tapped the can a little on teh inside where it was touch...just a suggestion.

 

[Wheelie]

im sure you have tried to loosen and twist the canister.


wee

 

[Professor]

Loosen and twist. It will work. Also turn the axle around backwards so the nut is on the other side to give it more clearance as well.

 

[Habu]

Thanks guys.....but I've tried twisting/rotating the cannister and the midpipe. Any way you turn it, it still rubs on the swingarm. The cannister is oval shaped, so anything other than straight up-down causes a worse condition.

It doesn't hit the axle nut, so that's not an issue.

Any other suggestions?

 

[Wheelie]

Thanks guys.....but I've tried twisting/rotating the cannister and the midpipe. Any way you turn it, it still rubs on the swingarm. The cannister is oval shaped, so anything other than straight up-down causes a worse condition.

It doesn't hit the axle nut, so that's not an issue.

Any other suggestions?

Alien Head.


wee

 

[Habu]

Closing out this post with final resolution:

I took the midpipe to a local exhaust shop. I had them heat the pipe up with a torch and they were able to bend the pipe outboard about a half inch - which did the trick. Now the cannister is parallel with the swingarm with enough clearance. I had to do some minor modification to the cannister hanger to get it to line up with the mounting bracket, but nothing big.

The only downside to doing this was the discoloration on the outside of the pipe....but not a big deal as it's low (almost directly under the bottom of the fairing. Since the pipe is stainless, it's got a nice pretty blue hue to it right around the joint where it connects to the header pipe. The pipes have about 10K miles on them, so they weren't perfect to begin with.

Nothing a little exhaust heat wrap tape won't cover up. Hope this helps someone else in the future.