Carbs leaking LOTS of gas

  • gnstalodz
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Carbs leaking LOTS of gas

11 May 2011 03:45 - 12 May 2011 23:31
#450240
I know of the drain screw for the carbs, and I used that after cleaning my carbs, but after I tightened them to stop the leak it just kept going and going. It's tightened all the way and it's just pouring out? I tried the search but didn't see anything.

ps. The bike hasn't ran yet and it pours out when the bikes off




Carb problem. Videos attached



81 440 ltd
Last edit: 12 May 2011 23:31 by gnstalodz.

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  • wireman
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Re: Carbs leaking LOTS of gas

11 May 2011 04:08
#450241
have you tried replacing the o ring or washer?
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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Re: Carbs leaking LOTS of gas

11 May 2011 04:29
#450245
didnt even know there was those in the carbs...
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Re: Carbs leaking LOTS of gas

11 May 2011 04:36
#450246
if its leaking from the drain screws on bottem of carbs there should either be a gasket or an o ring depending on which carbs you have B)
got a picture of the carbs,what model of bike? B)
im getting too old to remember what everybody else rides,cant remember what i rode/drove in on most days! :blink: :unsure: :woohoo:
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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Re: Carbs leaking LOTS of gas

11 May 2011 05:44
#450251
Sorry I edited my sign :D

And it's leaking from the very bottom, the rubber hose
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Re: Carbs leaking LOTS of gas

11 May 2011 08:40
#450261
Sounds like the overflow - that would be a sticking float valve or improper float height.

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Re: Carbs leaking LOTS of gas

11 May 2011 08:54
#450263
gnstalodz wrote: didnt even know there was those in the carbs...

See diagram:

Attachment KZ440.jpg not found

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: Carbs leaking LOTS of gas

11 May 2011 09:16
#450270
While engine idles (and fuel discharging from overflow hoses) ---

Rap smartly against sides of float bowls, using a plastic mallet or large screw driver handle.

Sometime helps freshly cleaned float valves to get fully seated, and often without future leakage.

Good Fortune! :)
1973 Z1
KZ900 LTD

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Re: Carbs leaking LOTS of gas

11 May 2011 09:24 - 11 May 2011 09:24
#450271
gnstalodz wrote: ...And it's leaking from the very bottom, the rubber hose

:unsure: What rubber hose?

The diagram posted by 650ed doesn't show an overflow circuit on the oem carbs.

:unsure: Is there a nipple protruding downward from the bottom of each carb float bowl?

With overflow circuits, there are usually four drain hoses attached to the nipples at bottoms of float bowls, and the four drain hoses are routed to exit underneath the bike.

Good Fortune! :)
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Last edit: 11 May 2011 09:24 by Patton.

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Re: Carbs leaking LOTS of gas

11 May 2011 16:06
#450318
Patton wrote:
gnstalodz wrote: ...And it's leaking from the very bottom, the rubber hose

:unsure: What rubber hose?

The diagram posted by 650ed doesn't show an overflow circuit on the oem carbs.

:unsure: Is there a nipple protruding downward from the bottom of each carb float bowl?

With overflow circuits, there are usually four drain hoses attached to the nipples at bottoms of float bowls, and the four drain hoses are routed to exit underneath the bike.

Good Fortune! :)

Yea, the hoses that run underneath the bike. And it's a 440 so there are only two.

I'm trying to think of what I did wrong so I'm just gonna take apart the carbs again I guess
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Re: Carbs leaking LOTS of gas

11 May 2011 16:06
#450319
DoubleDub wrote: Sounds like the overflow - that would be a sticking float valve or improper float height.

yes, the overflow is what I'm tanking about
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Re: Carbs leaking LOTS of gas

11 May 2011 17:04
#450334
floater spring is bad... anyway to fix it?
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