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1979 Kawasaki KZ400 spark plug gap

I have a 1979 Kawasaki kz400 and I am trying to find the spark plug gap specs and the spark plugs that I am using are NKG B7ES. So can you please help me? @

Posted by codyblockers on


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Steve P

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SOURCE: spark plug gap

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SOURCE: spark plug gage setting for 1999 kawasaki vulcan

correct setting for your plugs 0.8-0.9mm

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SOURCE: spark plug type and gap setting please

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SOURCE: spark plug gap

it's .8 "

Posted on Jun 03, 2009

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Problematic carburetor on 400cc Kawasaki needle settings have been checked and corrected etc but still no go, please help

I'll need some more information. Does the bike start at all? Does it idle fine, but then dies if you give it gas? Try to explain in detail what is going on so I can help you with this. There are a few things to check for, start by making sure your gas is good DON'T USE ANY GAS WITH ETHANOL (corn stuff) and that it is new. Another thing is to make sure you are getting spark. A simple way is to take the spark plug out while keeping it in the wire and touching it to the outside of the engine (grounding it), turn the motor over and you should see spark. If not, thats something you will need to correct. You don't have a year or what type of motorcycle so I'm assuming its a late 70's, early 80's KZ400 you are talking about. If so, the points could be the culprit as well (if the spark isn't going). But for the most part, the "needle" settings will only help with it's ability to rev high (main jet) and if it dies at idle, your idle jet is plugged up. Get back to us on the specifics and I can help more.


Here is a great site if it IS a KZ400

Looking for the spark plug gap specs for a 1979 Ford van

.044" Gap
this gap has been he same for years, who told u 0.26"?
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