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Overflow line leaking gas

Engine, Fuel and Exhaust

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Old Feb 8th, 2009, 02:42 AM     #1
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Overflow line leaking gas

Hello all, I'm zuckie from Anaheim,CA. I have 2 2000 883 Sportsters. My question is, My carburetor overflow line is leaking. I recently replaced my petcock. I plugged the vacuum line because the new petcock does use one. Could this be the reason why there is overflow now. Should I not plug the vacuum line. Thanks.
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Old Feb 8th, 2009, 07:32 AM     #2
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Re: Overflow line leaking gas

If you're getting fuel out the overflow tube on the carb, you could have debris from the tank stuck in the needle and seat area in the float bowl keeping it open a bit. Plugging the vacuum line should have no bearing on this.
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Old Feb 8th, 2009, 12:55 PM     #3
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Re: Overflow line leaking gas

Thanks glider, how do you clean the debris from the float bowl.
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Old Feb 8th, 2009, 12:56 PM     #4
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Re: Overflow line leaking gas

Drop the bowl and remove the needle and seat. Then clean them out with either compressed air or carb cleaner in a spray can.
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Old Feb 8th, 2009, 03:00 PM     #5
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Smile Re: Overflow line leaking gas

The tip of a carb float needle is coated in a thin layer of some type of rubbery substance after a number of years of use it can harden and not seal correctly
so if after cleaning the carb and checking the float height it still overflows consider replacing the float needle
was a common problem on bing carbs fitted to bmw
had the same problem on my 92 softail new float needle and now sorted

Brian
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Old Feb 8th, 2009, 09:15 PM     #6
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Re: Overflow line leaking gas

Do you know of any good tutorials or how to's that show pictures of bowl removal and cleaning. Thanks
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Old Feb 9th, 2009, 04:21 PM     #7
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Smile Re: Overflow line leaking gas

The following link to the 98 manual stuff in the carb should be the same as yours but the procedure for stripping and maintenance will be the same
1998 HARLEY DAVIDSON XLH8831200 Sportster Motorcycle Service Manual - HD Talking Downloads Page - Harley Davidson Community

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