CBR 600F2 1991 - 1994 CBR 600F2

Fuel leaking from Pilot Screw/D-shape

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Old Aug 16, 2009 | 03:35 PM
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Default Fuel leaking from Pilot Screw/D-shape

I cleaned out my carbs about a month ago and never took out the pilot screw because i didn't have the adapter. Put everything back together, ran great, then about a week ago, a drip of gas started to form on the pilot screw after it has been started. Now it is dripping alot, making a mess, all four carbs dripping, maybe a drip every three seconds.

Anyone have this problem before? Do I just need to replace the rubber O-ring that sits with the pilot screw?

Petcock is fine and engine isn't flooding.

Thanks for your time guys.
 
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Old Aug 16, 2009 | 03:53 PM
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It's probably the o-ring's for the float bowls, the leaking fuel will pile up on the pilot screw and appear to be dripping from the D's.

Although, if it is leaking from the pilot screws then yes replace the o-rings on the pilot screws.
 
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Old Aug 16, 2009 | 04:00 PM
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You know a cheaper place besides bikebandit.com for rubber replacements?
 
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Old Aug 16, 2009 | 04:26 PM
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ebay had rebuild kits at one point in time, but i'm not sure if they are still on there.

The O-Rings for the pilot screws are easily found in a hardware store, just measure the I.D. and O.D. and find a replacement.

But the o-rings on the float bowls are not so easy to find, and if you go to the dealer they only sell carb "kits" for like $80/carb (x4) which is insane.

Unfortunately you cannot buy carb parts individually.
 
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Old Aug 16, 2009 | 04:44 PM
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Hershey, Thank you again, despite the outlook being a little dismal. This problem will be gone soon.

Thanks
 
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Old Aug 22, 2009 | 01:29 AM
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So, if anyone is having this problem out there, i just got four rubber replacement kits off bikebandit.com for 25 a carb. It is more than i wanted to pay but it should fix the problem. Bad float bowl rubber rings.
 
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