Can anyone help identify these exhausts?

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T2098
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Joined: Sun Oct 18, 2015 4:16 pm

Can anyone help identify these exhausts?

#1 Post by T2098 » Fri Apr 01, 2016 5:23 pm

Any ideas what exhausts these were - if they were a production piece at some point, or just a one-off? I've searched and looked through as many pages and pictures of RZ exhausts as I can, but never seen them.

They are mild steel, wobble around on their mounts a fair bit, and have the smallest silencers I've ever seen.
They're quite loud as you might imagine, and all the rivets on the silencers are loose so they wobble around quite a bit as well.

Trying to decide if I'm better off cleaning these up and refurbing/repacking/replacing the silencers, or just buying a new set.

These mystery pipes seem shorter than might be optimal, although oddly enough the bike feels like it's down on top-end from 8000rpm on up rather than the other way around.

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seahorse
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Re: Can anyone help identify these exhausts?

#2 Post by seahorse » Sun Apr 03, 2016 12:52 am

Not production pipes that's for sure.
Making it to the power band but dying power could be its wanting fuel.
Check mains if standard come up.
I would try and tune the bike to the pipes first.
They would look nice painted motospray CALIPER drum black.
The stinger does look short and I would have guessed at first site that they would perform ok in the upper revs.
They look reminiscent of Rg 250 shaped pipes but not saying they are just shaped a bit like them.
81 RD 250 LC Hybrid .Widened frame with Aprilia RS250 Back end & Front end, strokd RZ 421, Kennys TSA's, 31KVM26SS Carbs M-360 P-25 ALBA Ndl Pos 3, Air 1.3/4
81Rd350lc resto 2016
81 Rd250lc resto 2017
1999 ZRX 1100

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South_Oz
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Re: Can anyone help identify these exhausts?

#3 Post by South_Oz » Sun Apr 03, 2016 5:03 am

Looks like a big stinger?

Dave
RZ 250 85 (Waiting)
RZ 250 85 (Parts)
RGV VJ21 250, Australian Speed Record Holder, MPS/G 250, 140.5 MPH
BMW R1100S 99 (Its Red)
BMW R1200GS (Its BIG)


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MK
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Re: Can anyone help identify these exhausts?

#4 Post by MK » Sun Apr 03, 2016 6:46 am

Looks like a DIY project to me.
You could try to dial in jetting ignition and PV to those and after that it may even be rideable.
Bye
Martin

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