KZ750... 4 into 1 exhaust?

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04 Feb 2022 02:11 - 04 Feb 2022 02:11 #861765 by gordone
Replied by gordone on topic KZ750... 4 into 1 exhaust?
I`m happy with Delkevic megaphone on my 810cc (750 H4), but I always you hear protection.... Center stand work as normaly, it spring touch the pipe some but not a problem.

 
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Last edit: 04 Feb 2022 02:11 by gordone.
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05 Feb 2022 10:17 - 05 Feb 2022 12:38 #861831 by stinkfinger
Replied by stinkfinger on topic KZ750... 4 into 1 exhaust?
Another option I found is Hindle makes a 4-2-1 that looks real nice, weighs just 10 lbs, and is reasonably priced.  Anybody using that one?

And not to stray too far off topic, but speaking of the 810cc kit...  Does that make a big difference?
1981 KZ750E, 2005 GasGas EC300, 2023 Husqvarna 701 Enduro
Last edit: 05 Feb 2022 12:38 by stinkfinger.
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06 Feb 2022 06:00 #861869 by ThatGPzGuy
Replied by ThatGPzGuy on topic KZ750... 4 into 1 exhaust?
The Hindle is a nice-looking system.  Hindle KZ650 pipe  but precludes the use of a center stand. 
Jim
North GA
2016 Yamaha FJR1300ES
1982 GPz750 R1
1974 Kawasaki H1
1976 Kawasaki KZ400
1979 Yamaha XS650 cafe'
2001 KZ1000P
2001 Yamaha YZ426
1981 Honda XR200 stroked in an '89 CR125 chassis
1965 Mustang
1967 Triumph GT6
1976 Bronco
"If you didn't build it, it's not really yours"

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06 Feb 2022 07:22 #861873 by stinkfinger
Replied by stinkfinger on topic KZ750... 4 into 1 exhaust?
Interesting that the text says that the center stand should be removed, but if you look closely at the photo the bike in the photo does have the stand.
1981 KZ750E, 2005 GasGas EC300, 2023 Husqvarna 701 Enduro
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06 Feb 2022 08:46 #861879 by ThatGPzGuy
Replied by ThatGPzGuy on topic KZ750... 4 into 1 exhaust?

Interesting that the text says that the center stand should be removed, but if you look closely at the photo the bike in the photo does have the stand.
[img
 Good eye!
Jim
North GA
2016 Yamaha FJR1300ES
1982 GPz750 R1
1974 Kawasaki H1
1976 Kawasaki KZ400
1979 Yamaha XS650 cafe'
2001 KZ1000P
2001 Yamaha YZ426
1981 Honda XR200 stroked in an '89 CR125 chassis
1965 Mustang
1967 Triumph GT6
1976 Bronco
"If you didn't build it, it's not really yours"

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08 Feb 2022 20:25 #862022 by stinkfinger
Replied by stinkfinger on topic KZ750... 4 into 1 exhaust?
Just to follow up, in case any one else is wondering... I emailed about center stand clearance, and this is the reply (from ripplerockracers):

"Yes , you can keep the centerstand with the KZ750 and 650 and it will deploy. It might rub on the crossover with the 650 so the stand may touch the pipe on deployment. If it does then a little gentle tapping with a mallet or hammer can give you the clearance."
1981 KZ750E, 2005 GasGas EC300, 2023 Husqvarna 701 Enduro
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12 Feb 2022 08:25 #862171 by rstnick
Replied by rstnick on topic KZ750... 4 into 1 exhaust?
Have a Delkevic exhaust on my 650.
I don't find it too loud, and others have never mentioned it's too loud.
Baffle is in.
I've never had a stock exhaust on my 650, so maybe I'm imune to the noise.
I did come from an open Yosh pipe to a Kerker with baffle, then the Delkevic.

I don't have a center stand, had to remove it to fit the braced swingarm.
Spools were fitted to the swingarm, so use a rear stand.

[IMG

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Rob
CANADA

Need a key for your Kawasaki? PM me

1978 KZ650 C2, 130K kms, Delkevic ex, EI, CVK32, PMC easy clutch, ATK fork brace, steering damper, braced swingarm, 18" Z1R front wheel.
2000 ZRX1100
2011 Ninja 250R
2005 z750s
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12 Feb 2022 08:30 #862172 by rstnick
Replied by rstnick on topic KZ750... 4 into 1 exhaust?
Stock 650 swing arm, braced:

[IMG

[IMG

[IMG
Rob
CANADA

Need a key for your Kawasaki? PM me

1978 KZ650 C2, 130K kms, Delkevic ex, EI, CVK32, PMC easy clutch, ATK fork brace, steering damper, braced swingarm, 18" Z1R front wheel.
2000 ZRX1100
2011 Ninja 250R
2005 z750s
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14 Feb 2022 07:47 #862322 by stinkfinger
Replied by stinkfinger on topic KZ750... 4 into 1 exhaust?
Beautiful bike rstnick... looks like you made a lot of changes throughout the pictures.  That you kept the Delkevic all that time (even over the Kerker, which seems to be a favorite) is a pretty good endorsement.
1981 KZ750E, 2005 GasGas EC300, 2023 Husqvarna 701 Enduro

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14 Feb 2022 10:44 - 14 Feb 2022 10:44 #862339 by willemZ900
Replied by willemZ900 on topic KZ750... 4 into 1 exhaust?
Ha Did the same tric with my swingarm 
[img

[img
Last edit: 14 Feb 2022 10:44 by willemZ900.

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15 Feb 2022 15:43 #862436 by Elfarm98648
Replied by Elfarm98648 on topic KZ750... 4 into 1 exhaust?
Just bought a 4-1 for my KZ750, what jets are you all running for a stock air box? I know pods makes a difference and I’m not looking to go that route. 

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15 Feb 2022 16:27 #862437 by DOHC
Replied by DOHC on topic KZ750... 4 into 1 exhaust?

Just bought a 4-1 for my KZ750, what jets are you all running for a stock air box?
Many 4-1 aftermarket pipes were advertised to work fine with the stock jets.  If the pipe has a baffle installed, and you have the stock engine internals, carbs, and airbox, I would stick with the stock jets. 
That at least should be close enough that you can drive it and see if you need to tweak it.
'78 Z1-R in blue , '78 Z1-R in black, '78 Z1-R in pieces
My dad's '74 Z1
'00 ZRX1100
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