Wont run

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07 Jun 2011 10:25 #455912 by jimflex
Wont run was created by jimflex
1980 kz 1000. it started about two weeks ago, when I would jump on it and it would hit about 5000 rpm the bike would start to fall on its face, it would sputter and pop and go no where. Now it will idle when i start it but as soon as i give it some gas it just dies and gas pours out from the bowl overflow tubes. I just need some advice to what could be wrong before I start pulling things apart. Can anyone HELP?

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07 Jun 2011 10:54 #455915 by dshelly
Replied by dshelly on topic Wont run
Pull the carbs, clean them extremly well and set the float levels. Also check out your boots that attach the carbs to the head. If dry or hard they will need replaced. The float levels are why you have fuel running out the overflows. Use the clear tube method to set them. There is plenty of info on here about how to do it. Good luck and have fun.

dshelly

Occupation:Machinist 25+ exp.
'77 Kz1000B1
'78 Kz1000A2
'76 Kz900LTD

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07 Jun 2011 11:22 #455917 by Patton
Replied by Patton on topic Wont run

jimflex wrote: 1980 kz 1000...gas pours out from the bowl overflow tubes....


Where excessive fuel is entering the carb float bowl, the typical causes may include imperfect float valve (most likely), or function of the float itself.

It's critical that the pointed tip of the float needle interfaces perfectly with the orifice in the float seat.

Another possibility could be a cracked overflow tube, whereby fuel exits the overflow without ever rising to top of the tube.

Good Fortune! :)

1973 Z1
KZ900 LTD

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07 Jun 2011 12:27 - 15 Feb 2013 10:08 #455919 by martin_csr
Replied by martin_csr on topic -
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Last edit: 15 Feb 2013 10:08 by martin_csr.

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