Need help re-jetting carbs on 1983 KZ440 LTD

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20 Apr 2017 19:22 #759713 by jmccallum705
Need help re-jetting carbs on 1983 KZ440 LTD was created by jmccallum705
Hello everyone,
I am new to riding as well as motorcycles all together. Recently I acquired a 1983 KZ440 ltd in a trade and it is idling too high. I knew this going into the trade and was told it was an easy fix.I have been told to re jet the carbs and it should take care of it. The kid I got it from comes from a mechanical background and seemed pretty sure. I would really like to start working with small engines and doing my own maintenance on the bike and this seemed like a good project for me and something to be proud to ride. I have tried looking around to no avail but I'm sure its been talked about before. Is it easy enough and worth it to do it myself. Any responses are greatly appreciated.

Thanks,
Jimmy M.

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20 Apr 2017 19:35 #759719 by Nebr_Rex
Replied by Nebr_Rex on topic Need help re-jetting carbs on 1983 KZ440 LTD
Get yourself a manual and perform ALL the routine maintenance and go from there.
The carbs probably need to be cleaned. But go thru the brakes, ignition/electrical, engine and chassis.


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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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20 Apr 2017 19:42 #759720 by GPzEric
Replied by GPzEric on topic Need help re-jetting carbs on 1983 KZ440 LTD
Back in '83 my stepfather had one of these, and it was cold-blooded as heck - worse than my GPz550.

At the time, I looked at the jets for the Export only one, and changed the main jet / Pilot jet, and shimmed the meedle a very slight amount, and it made a world of difference.

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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20 Apr 2017 19:43 - 20 Apr 2017 19:48 #759721 by 650ed
Rejetting the carbs is not the solution for an engine idling too high. The person who told you that doesn't appear to be familiar with your motorcycle.

The answer is to simply turn the big idle adjustment screw counter-clockwise until the engine idles at the proper rpm. Be SURE you know what that rpm level is so you don't idle it down too low, otherwise you may lower the oil pressure too much and create a problem. Ed


1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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Last edit: 20 Apr 2017 19:48 by 650ed.

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