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78 kz650, help!! please!! 22 May 2012 17:40 #524078

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ok im stumped, and about to give in and take her to someone who knows what there doing,
the only way i can get her running is to turn on the gas fill the bowls, turn the gas off,
then start her, and the choke has to be off, i can turn choke on after shes running and then turn the gas back on, but number one wont fire until i give it some gas??
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78 kz650, help!! please!! 22 May 2012 17:44 #524081

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Clean/soak the carbs B)
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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78 kz650, help!! please!! 22 May 2012 17:53 #524082

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tried that, use a small piece of wire cleaned everything then soaked everything in carb cleaner, and then blew everything out with air compressor, only thing i change was the float height, cause all the bowls overflowed
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78 kz650, help!! please!! 22 May 2012 17:59 #524084

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pm Patton for a picture of how to set float levels B)
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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78 kz650, help!! please!! 22 May 2012 18:09 #524089

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alright thanks, didnt think that could cause that, but i know just about enough to get me in trouble
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78 kz650, help!! please!! 22 May 2012 18:11 #524091

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What are you using for air filtration?
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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78 kz650, help!! please!! 22 May 2012 18:13 #524092

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pods
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78 kz650, help!! please!! 22 May 2012 19:02 #524102

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When adjusting the float height to achieve the correct fuel level, the float valve must be properly functioning.
Bowl overflow often indicates that the float valve isn't properly functioning.



Good Fortune! :)
1973 Z1
KZ900 LTD
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78 kz650, help!! please!! 22 May 2012 19:07 #524103

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Wear eye protection when spraying carb cleaner, which always backfires -- ALWAYS. :pinch:

Good Fortune! :)
1973 Z1
KZ900 LTD
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78 kz650, help!! please!! 22 May 2012 20:18 #524119

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thanks guys, ill pull em back off, and re-clean everything, thanks for the info,
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78 kz650, help!! please!! 22 May 2012 20:35 #524122

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If the tangs are way off, could use the float height setting method described in the FSM which involves a measurement with the carbs upside down on the workbench. Should get the tangs back inside the ball park, to be followed with more precise adjustment as determined by the clear tube test.

Good to remember that the carbs don't care what the float height measurement happens to be.

What the carbs do care about is that the float height is whatever it needs to be in order to produce the correct fuel level.

Incidentally, where float valve are perfectly functioning, yet overflow persists, the overflow tube might be cracked or loose where it attaches inside the bowl.

Good Fortune! :)
1973 Z1
KZ900 LTD

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78 kz650, help!! please!! 22 May 2012 20:41 #524124

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krazykzcommandeered wrote: ...ill pull em back off, and re-clean everything....


Would also perform the clear tube tests while carbs are on the workbench.

If the gasoline odor gets bothersome, I have used common household rubbing alcohol instead.
And the slightly heaver alcohol has no noticeable effect on the test results.

Good Fortune! :)
1973 Z1
KZ900 LTD

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Last edit: by Patton.
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