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4 into 1 exhast system for '77 kz650 10 May 2021 01:21 #848288

  • Vietvet
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G'day all, returning member from years ago. Doing a restoration on my '77 KZ 650. I already have done it once but it needs a touch up again, I intend to use it for historic racing here in Australia. I would like to know thoughts on a 4 into 1 exhaust system for it, are they still available and has anyone used one getting rid of the stock air filter system. I presume there would have to be some re-jetting required. Any info greatly appreciated Regards Neil

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4 into 1 exhast system for '77 kz650 10 May 2021 07:37 #848298

  • Mikaw
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Welcome back. 

Might be taking out of my backside here but before you modify the bike I’d check with the racing sanctioning body to find out what mods allowed. 
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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4 into 1 exhast system for '77 kz650 10 May 2021 15:11 #848310

  • rstnick
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I currently have a Delkevic 4 into 1 exhaust on my '78 kz650.
Stainless Steel, and the price is very competitive.
They have two muffler types; straight and megaphone.
I bough the straight, reminding me of the Yosh exhaust I use to have.
I'm currently using a stock air box, but have run pod filters way in the past, with a Kerker 4 > 1.


Rob.
CANADA
forums.kz650.info/
'78 KZ650 C2, 128K kms, Rickman fairing, Delkevic ex, EI, CVK32, ATK fork brace, steering damper, braced swingarm, 18" Z1R front wheel.
'00 ZRX1100, Ohlin's shocks, fork brace, steering damper, ELS +4, Corbin seat, Gimbel bugspoiler.
'11 Ninja 250R

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4 into 1 exhast system for '77 kz650 11 May 2021 06:24 #848326

  • martin_csr
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ZR7 ZR7S muffler system (1999-2005 ZR750 models).
It's ss & has crossover pipes between the 1-4 & 2-3 headers.


ZR-7 or ZR-7S. same exhaust as above.

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Last edit: by martin_csr.
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