Carbs sending fuel into filter not cylinder

Bluerider
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Carbs sending fuel into filter not cylinder

16 Mar 2020 15:55

Replaced all gaskets on the top end. Now when it fires up (no issues there) carbs 2 and 3 are not sending the fuel into the cylinder but into the pod filters. Put out two fires thus far. Is this more of a ring issue or a carb issue? 1978 KZ1000LTD. no mods but the pod filters and the frame.

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baldy110
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Re: Carbs sending fuel into filter not cylinder

16 Mar 2020 16:20

#821026

Check the float levels bet they are to high.

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TexasKZ
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Re: Carbs sending fuel into filter not cylinder

16 Mar 2020 16:25

#821028

Yup. Should have been checked when the carbs were rejetted.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24

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Bluerider
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Re: Carbs sending fuel into filter not cylinder

16 Mar 2020 16:34

#821030

Too high or stuck? Will pull them again later. Did rebuild them last year though. Set the carb height based on book with a micrometer.

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TexasKZ
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Re: Carbs sending fuel into filter not cylinder

16 Mar 2020 16:36

#821031

Could be sticking.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24

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Nessism
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Re: Carbs sending fuel into filter not cylinder

16 Mar 2020 17:32

#821035

Sticking likely. Hope you rejetted for the pods or you will be pulling the carbs again in the near future.

Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0

www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know

1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread

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SWest
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10 22 2014
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Re: Carbs sending fuel into filter not cylinder

16 Mar 2020 20:26

#821038

Are the coils connected to the right cylinders?
Steve

Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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calum
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Re: Carbs sending fuel into filter not cylinder

17 Mar 2020 00:55

#821044

To confirm that it's an issue with the floats you could just set the petcock to prime. If it doesn't overflow then the float height should be fine. Are 2 and 3 firing?

KZ1000 Restomod ( www.kzrider.com/forum/11-projects/614517-1977-kz1000-restomod )
1977 KZ1000A1 ( www.kzrider.com/forum/11-projects/616901...-spare-parts-project )
1980 KZ750H ( kzrider.com/forum/11-projects/612054-kz750h-restoration )
2000 BMW F650GS

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shrap66
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Re: Carbs sending fuel into filter not cylinder

17 Mar 2020 03:01

#821045

This just happened to me after doing a carb rebuild. I thought I did everything right. Ultrasonic cleaned. New O-Rings, gaskets, rejet etc.

When I started the bike fuel was flowing from the pods. All 4. The bike was running but something was very wrong.

Could not be a case of stuck valve if all 4.

I had installed the needles upside down. Stupid mistake.

Make sure you drain your oil as it will likely be contaminated with gas.

1979 KZ1000B3 LTD Glacier Green

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jayrodoh
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Re: Carbs sending fuel into filter not cylinder

17 Mar 2020 05:46

#821049

calum wrote: To confirm that it's an issue with the floats you could just set the petcock to prime. If it doesn't overflow then the float height should be fine.

Good troubleshooting tip, if float levels are correct and needles are seating properly you should be able to leave a petcock on prime (or on for a manual one) without any leakage from carbs.

1982 KZ750-M1 CSR

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baldy110
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Re: Carbs sending fuel into filter not cylinder

21 Mar 2020 11:49

#821312

Float height has nothing to do with float level. Float level is what you need, set the levels using the wet method as described in the manual.

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Mikaw
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Re: Carbs sending fuel into filter not cylinder

21 Mar 2020 12:01

#821316

calum wrote: To confirm that it's an issue with the floats you could just set the petcock to prime. If it doesn't overflow then the float height should be fine.

Not a true statement. Don’t trust the measurement method. It’s just to get you close. The only true float level is achieved by the wet method as Baldy110 states. Been there done it. Truly a PITA. COMPLETELY WORTH IT

1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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