CBR 600F 1987 - 1990 CBR 600F Forum

carb leaking gas?

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  #1  
Old 03-09-2008, 03:44 PM
ibraud's Avatar
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Default carb leaking gas?

just got this hurricane...

noticed a gas smell when i got it home.
I took off the fairing and found the outside right carb drips gas like a leaky faucet.

[IMG]local://upfiles/24546/7E79AD31ED8C40179A9F6996B550F6AD.jpg[/IMG]

any advice?
I can't seem t find a hose to blame, so maybe the gasket is old or didn't get put back in by somebody?

[IMG]local://upfiles/24546/C713B89FC62C41D0A5C2D4820DE28ED1.jpg[/IMG]
 
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Old 03-09-2008, 05:30 PM
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Default RE: carb leaking gas?

mine just started with that this week. Im gonna take my carbs out and give them a good cleaning. Its could be a clogged jet or stuck float.
 
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Old 03-10-2008, 09:23 AM
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Default RE: carb leaking gas?

Is the gas leaking out of the little nipple that sticks out the bottom? That adjustment screw opens and closes those nipples to drain the fuel. If its those nipples, check that screw first.
 
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Old 03-12-2008, 01:24 AM
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Default RE: carb leaking gas?

Check to see if the gas is ACTUALLY coming from the carb, or from rubber vent tube in between the #3 and 4 (the outside right) carbs.

If the gas is coming from there, then you've most likely got a stuck or cracked float in either the #3 or #4 carb.

If it REALLY is just coming from that one carb (doubt it), then the drain screw or just a nasty float bowl gasket (like said above) are probably it.

Once I just plain forgot to put a gasket on one of my float bowls; sometimes they pop out of there.
 
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Old 03-22-2008, 05:25 PM
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Default RE: carb leaking gas?

I did check the drain screws, so that's not it.

I got my little brother to pull the carbs off for me and open up the float bowls. He says it looks like they were leaking from around the bowls, probably not from the vent tubes. Apparently #4 was full of sludge and had a useless disintegrated o-ring. He took the rest of the bowls off and some of the others already had RTV gunk added to help seal them. The new gasket set will be here this week, along with a new clutch lever. Then I can get around to replacing the brake rotors, lines, pads, etc.
 
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