Nice rockerarm-set-up Redboots!
Where did you buy it - Israel Motoren?

As for balance-pipe or not. I do not know how it affects the GS. On the street model you will hear a lot of opinions. My personal experience is that below 3000rpm is does play a significant role in back-pressure / low-rev torque. I have tested none, single and dual - only dual gives my bike the torque I want. On higher revs, 4000 and up, I can not say that I noticed any difference at all whilst driving.

Tested a K75 with motorcross muffler - it sure sounded a lot!
Now low-rev power at all!
But, as revs built up, so did power!!!
It was -fun- driving; no one asked the locals what they thought though...

Ok - issue here is funds.
Keihan s/s mufflers are ok, but the Aussie once are better.

Go to the scrap-yard and pick-up a nice muffler from a Nippion Rice Cooker (RR-bike); something that have a loose inner section around which you stuff insulation/silencing material.
You will need to re-jet the carbs though; a fair guess is 1 step up on the mainjet and perhaps 1 notch up with the needle - your mechanic can set it up. Motorworks have a good collection of jets and needles.

You will get a louder sound, loose a bit of low-rev torque, and save a bundle.

Size and weight is an issue on a GS, I know, but the scrap-yard will gladly help you find a suitable silencer/muffler.


Creativity at work is always apprechiated:
- Remember to post/send photos of the solution!

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Drive Safely,
Albert

There is a guy on German 2v forum that makes a batch now and then: kipphebelb�cke

I think I paid €120, posted.

My silencer rattles a lot... cant afford another right now though

John

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Nostradamus Ate My Hamster

I've just fitted Keihan down tubes (without balance pipe) and a Keihan s/s exhaust from Motorworks - a stainless copy of the original. I already had the Keihan y piece. All works fine. Although the right hand pipe doesn't seem to fit quite right, and is currently vibrating against the sump guard, but i'm sure i can sort that out. Keihan seems good quality.

I also had the carbs cleaned, s/s pushrod tubes, replaced an exhaust valve and de-coked. The engine is idling too high when fully warmed up - carbs needs adjusting, and surging a little - throttle cables are snagging under the tank.

I feel that it is a bit more responsive at low revs, and a bit quicker. But that might just be my imagination, or the 20kg weight lost from stripping off the fairing and lots of other un-necessary junk.