Needle jet springs

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17 Apr 2018 08:25 #781945 by Bigz
Needle jet springs was created by Bigz
I'm going through the carbs on a 1979 kz650sr D2. I've gotten to the needle jets and I'm not seeing any springs between the needle clip and the piston. Is this something common for this year and model of bike or am I following the work of someone who hacked a carb job?

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17 Apr 2018 16:40 #781964 by TexasKZ
Replied by TexasKZ on topic Needle jet springs
Number 48?

www.partzilla.com/catalog/kawasaki/motor...-d2/carburetor-parts
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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17 Apr 2018 19:45 #781979 by Bigz
Replied by Bigz on topic Needle jet springs
Yes, that's the spring I see is "supposed" to be there. There isn't one of those springs on any of the needle jets. The carb rebuild kits that I bought didn't come with any springs that could fit in the 1/16" space that the needle has to travel.

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18 Apr 2018 05:23 #781989 by TexasKZ
Replied by TexasKZ on topic Needle jet springs
Partzilla lists them as in stock and only $2.39 each !

Looks like they fit a wide variety of models, so you may be able to score some used ones someplace.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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18 Apr 2018 06:44 #781993 by Bigz
Replied by Bigz on topic Needle jet springs
Ok. So does that mean I'm not crazy and it does in fact need those springs, and I didn't just get some odd year with a carb that doesn't need them? I just thought it exceptionally odd that not one of the carbs had the spring.

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  • SWest
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  • 10 22 2014
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18 Apr 2018 07:39 #781994 by SWest
Replied by SWest on topic Needle jet springs
Pics of what you have?
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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18 Apr 2018 09:30 #781998 by ajsfirehawk
Replied by ajsfirehawk on topic Needle jet springs
Note the washer, #47. It needs to be in there as well.
79 KZ650 SR
80 KZ1000 Z1 Classic
83 KZ1100 LTD
Z900RS
23 Mach 1

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18 Apr 2018 09:59 #782000 by Bigz
Replied by Bigz on topic Needle jet springs
This is it. None of the needles came with springs. The guy said it was running before I took it apart to clean.
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  • SWest
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  • 10 22 2014
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18 Apr 2018 10:50 #782005 by SWest
Replied by SWest on topic Needle jet springs
A washer would keep the needles from moving. I guess the springs would keep them more solid. Never seen them before.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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  • gd4now
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  • Denco where did you go?
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18 Apr 2018 11:18 #782007 by gd4now
Replied by gd4now on topic Needle jet springs
Not all of the vm24ss or vm22ss carbs that were stock on the KZ650 made use of the springs. It is my understanding that the carbs that came with needles that only have one slot (non adjustable ones) did not make use of the springs.
1977 KZ650 B1
Pods and Denco header

OLD KAW OWNERS SMILE ALOT
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18 Apr 2018 12:43 #782008 by zed1015
Replied by zed1015 on topic Needle jet springs
Your carbs do NOT need springs.
AIR CORRECTOR JETS FOR VM CARBS AND ETHANOL RESISTANT VITON CHOKE PLUNGER SEAL REPLACMENT FOR ALL CLASSIC AND MODERN MOTORCYCLE CARBURETTORS
kzrider.com/forum/23-for-sale/611992-air-corrector-jets-





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18 Apr 2018 13:13 #782009 by 650ed
Replied by 650ed on topic Needle jet springs
See link below for diagram of 1979 KZ650-D2 carbs. Ed

www.partzilla.com/catalog/kawasaki/motor...-d2/carburetor-parts
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
The following user(s) said Thank You: Bigz

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