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VM28 Pump Plunger 18 Oct 2020 05:47 #837123

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Mikaw, are those from a Suzuki? The knob is on the bottom. I think Kawasaki versions had the knob on the top. Mine is on the top.
I have a couple of Z1B's restored, an '80 KZ1000LTD restored, a 1981 KZ550 restored and a 2008 KLR 650 for off road fun. My wife has a 2019 Suzuki DR 650 for on and off road.

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VM28 Pump Plunger 18 Oct 2020 09:51 #837145

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hardrockminer wrote: Mikaw, are those from a Suzuki? The knob is on the bottom. I think Kawasaki versions had the knob on the top. Mine is on the top.


I think they are Kawasaki, but I'm far from the expert. I'll concede if I'm wrong.

www.partzilla.com/catalog/kawasaki/motor...retor-assy-usa-80-d3
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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VM28 Pump Plunger 18 Oct 2020 09:54 #837146

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kevski wrote: Just solved it, those with the single fuel feed have offset arm to allow clearance,


That's not consistent with the ones I posted from Evilbay. They are single feed and have a straight arm.
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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VM28 Pump Plunger 18 Oct 2020 11:39 #837163

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Mikaw wrote:

kevski wrote: Just solved it, those with the single fuel feed have offset arm to allow clearance,


That's not consistent with the ones I posted from Evilbay. They are single feed and have a straight arm.

if you look at the pictures the fuel tee and connection spigots are new and the arm, look at all the other zinc plated parts on the carbs, they all show signs of age but not the arm and diaphragm cover.

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VM28 Pump Plunger 18 Oct 2020 11:53 #837164

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My set has the low down idle adjuster and the central fuel feed Tee.

I sent off one carb to have the float post welded and when it gets back I'll assemble everything and check for clearance.

Thanks to everyone for all the great info!

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VM28 Pump Plunger 18 Oct 2020 12:42 #837169

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kevski wrote:

Mikaw wrote:

kevski wrote: Just solved it, those with the single fuel feed have offset arm to allow clearance,


That's not consistent with the ones I posted from Evilbay. They are single feed and have a straight arm.

if you look at the pictures the fuel tee and connection spigots are new and the arm, look at all the other zinc plated parts on the carbs, they all show signs of age but not the arm and diaphragm cover.


I can agree with that statement. But research shows the same part number for the '79 /'80 with single feed vs the '80 with dual feed. Part number Kawasaki 14025-1139. Here is a picture of it from CMSNL. Straight! Maybe the VM24's are different

www.cmsnl.com/kawasaki-kz1000a1-1977-can...251139/#.X4yYARKSm00

I know Partzilla isn't always correct but go here and check the application for that part number... I'd bet a large coffee and Krispy Kreme that its a straight arm

www.partzilla.com/product/kawasaki/14025...9a4092594511584bc79f
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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VM28 Pump Plunger 18 Oct 2020 13:04 #837172

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Mikaw wrote:

hardrockminer wrote: Mikaw, are those from a Suzuki? The knob is on the bottom. I think Kawasaki versions had the knob on the top. Mine is on the top.


I think they are Kawasaki, but I'm far from the expert. I'll concede if I'm wrong.

www.partzilla.com/catalog/kawasaki/motor...retor-assy-usa-80-d3


You're correct...more than just the Z1R carbs have the adjust knob on the bottom. All of the B series have it on the top.
I have a couple of Z1B's restored, an '80 KZ1000LTD restored, a 1981 KZ550 restored and a 2008 KLR 650 for off road fun. My wife has a 2019 Suzuki DR 650 for on and off road.

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VM28 Pump Plunger 18 Oct 2020 15:48 #837193

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Bought a idle speed stop screw from a KZ550. The size of the spline pattern is the same as the Mikuni part on these carbs so I'll either pull off the knob and install it on the original screw or mod this screw to work on the pumper carbs. An expert may notice it's not a perfect match but I doubt very many people will complain.

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VM28 Pump Plunger 18 Oct 2020 16:39 #837195

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PM sent with link to a decently price 28 pumpers for parts
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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VM28 Pump Plunger 24 Oct 2020 12:15 #837623

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kevski wrote: Just solved it, those with the single fuel feed have offset arm to allow clearance.


Confirmed.

I'll get some photos up in a little while but a straight arm would put the linkage rod right through the fuel feed Tee.

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VM28 Pump Plunger 24 Oct 2020 13:46 #837628

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Nessism wrote:

kevski wrote: Just solved it, those with the single fuel feed have offset arm to allow clearance.


Confirmed.

I'll get some photos up in a little while but a straight arm would put the linkage rod right through the fuel feed Tee.


Kevski. I guess I owe you a large coffee and a Krispy Kream
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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VM28 Pump Plunger 24 Oct 2020 16:37 #837641

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Carbs are almost done except for massive fuel leak whenever the pump is actuated. Fuel pouring from float bowl gasket. I don't understand because I've got new gaskets and have O-rings on the pump nozzles. Even if the O-rings are the wrong size I think the float bowl gasket would keep fuel in. Any suggestions?

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