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kz440 Jet Question 21 Jul 2018 08:18 #787332

  • Grcko
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First let me say I am new to motorcycles. I was comfortable taking the carb apart and cleaning it but need some help on jetting. The bike came with pods and 2-1 exhaust. I am putting the air-box on and the original 2-2 exhaust. I checked the jets and the primary says 78 on it and the the secondary say M108. I looked at the Kawasaki parts diagram and it says the primary was originally 65 and the secondary was 88. Are these the jets I need? Do I need to replace anything else to bring the carb back to original to work withe the air-box/ exhaust? Any help would be greatly appreciated.
As Always,

1983 KZ440

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kz440 Jet Question 21 Jul 2018 19:30 #787370

  • Nebr_Rex
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Check the needle also.


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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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kz440 Jet Question 21 Jul 2018 20:15 #787372

  • Grcko
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I will do that. Thanks. 
So just change those to what the  parts diagram says all should be back to stock on the carbs?  
As Always,

1983 KZ440

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kz440 Jet Question 22 Jul 2018 15:24 #787440

  • TexasKZ
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Typically, that is all that gets changed. Other than that, it will be a matter of fine tuning as per the manual.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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kz440 Jet Question 10 Aug 2018 19:45 #788647

  • Grcko
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So I have the primary, secondary and needle jets now. I found one more though. Pilot jet. Will this need to be replaced as well. I can’t see any numbers on it with my glasses on and a lighted magnifying glass so I don’t know what it is.
One other question; is the needle for the needle jet suppose to be loose or tight in the vacuum cyclinder? They are loose right now and have some wobble.
As Always,

1983 KZ440

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kz440 Jet Question 11 Aug 2018 06:41 #788666

  • Nebr_Rex
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I would replace the pilot jet to eliminate that unknown.
Your jet needle being loose it normal.


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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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kz440 Jet Question 11 Aug 2018 07:47 #788670

  • Grcko
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I figured I should replace it. Guess I don't get it running this weekend.
Thanks for the confirmation.
As Always,

1983 KZ440

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