What type of carb are these? should i junk them?

cpmaynard1980
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What type of carb are these? should i junk them?

16 Oct 2013 14:25

I have a set of carbs that were given to me that are for a kz but im not sure which one they are. They look rough but I got the slides to move freely. One thing that puzzles me is that if you look under the carb and the float bowl area there is a spot where it looks like there should be an adjustment screw. Like a mixture screw. But there is none. I shined a light in the hole and there is no threads for a screw. Ive read on one of the carb rebuilding sites on here that there was a set of carbs that are un tuneable. Im wondering if I have those and if they are worth messing with.

Also another carb question is about the carbs with the accelerator pump. Are these any good? and how hard are they to get parts for. My friend has my good carbs on a customers bike and wants to trade me a set of those but some one has taken the pump off and put a block off plate on them. I would like them to be complete but dont see the missing pieces in rebuild kits.

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StreetfighterKz
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Re: What type of carb are these? should i junk them?

16 Oct 2013 14:42

#610231

Not sure exactly what bike those were originally from but they look very similar to the VM26 carbs that came stock on the 77-78 Kz1000.

Later, Doug

1978 z1000 Streetfighter
1976 z900 Stripfighter
1979 z650 Resto-Mod
1983 Gpz750 Resto-Mod
2018 Z900RS

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koolaid_kid
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Re: What type of carb are these? should i junk them?

16 Oct 2013 15:35

#610241

Those are really rough. They are a VM-style carb, or at least they used to be.
AFA the carbs with the accelerator pump, if they are missing the pumps they are worthless IMHO. That is their whole value, and the pumps are made of unobtainium.

1983 GPz 750
810 Wiseco, Kerker, K&N, DynoJet S3, Accel, Progressive, etc.

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Nebr_Rex
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Re: What type of carb are these? should i junk them?

16 Oct 2013 16:29

#610253

cpmaynard1980 wrote: I have a set of carbs that were given to me that are for a kz but im not sure which one they are. They look rough but I got the slides to move freely. One thing that puzzles me is that if you look under the carb and the float bowl area there is a spot where it looks like there should be an adjustment screw. Like a mixture screw. But there is none. I shined a light in the hole and there is no threads for a screw. Ive read on one of the carb rebuilding sites on here that there was a set of carbs that are un tuneable. Im wondering if I have those and if they are worth messing with.

Also another carb question is about the carbs with the accelerator pump. Are these any good? and how hard are they to get parts for. My friend has my good carbs on a customers bike and wants to trade me a set of those but some one has taken the pump off and put a block off plate on them. I would like them to be complete but dont see the missing pieces in rebuild kits.

Those carbs will clean up. They have value. We need right side up pics of the pumper carbs you are referencing to.

.

2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0

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GPzEric
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Re: What type of carb are these? should i junk them?

16 Oct 2013 18:51

#610271

They look like they were painted black once - but I can't identify them either.

My wife asked me if I still loved her - I said "Honey, I love you more than new carburetor boots ! "
1982 KZ1100B2 (GPz)
1982 KZ750R1 (GPz)
(2) 1981 KZ550D1 (GPz) 1 mint, 1 under construction
1983 GS1100E

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testarossa
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Re: What type of carb are these? should i junk them?

16 Oct 2013 20:04

#610275

Those look just like the VM26 carbs that came on my 78 KZ1000. That set is pretty crusty. They are a fairly common carb and easy to find parts for. Not the greatest for performance in my opinion.

1978 KZ1000 A2 Click--->Build Thread
2004 ZX-10R
2007 Harley Sportster 1200
2020 Harley Street Glide Special
Angola, IN

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Motor Head
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Re: What type of carb are these? should i junk them?

16 Oct 2013 22:52

#610281

Check the size of the venturi, if 26mm better look for a good a set of 28's than put time and money in those, if they're 26's.

1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...

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loudhvx
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Re: What type of carb are these? should i junk them?

17 Oct 2013 11:34

#610316

It is common for people to block off the accelerator pump on the KZ1000 carbs. When jetted properly, it runs better than with the pumps. I suspect the pumps were to compensate for leaner jetting to pass emissions. Eliminate the pump, fatten the jetting, and the carbs work like classic slide carbs were meant to.

1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.

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