fuel leakage

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Jul 4, 2012 | 08:06 PM

machinehed

Thread Starter

Road Master

Joined: Oct 2011

Posts: 957

Likes: 2

From: Carlsbad Springs Ontario

fuel leakage

1990 FLT Police .
CV carb.
Question ... newly purchased bike leaks fuel all over engine if fuel **** valve is not set to stop.???
Is this standard operating procedure for this bike .???
Dont have original owners manual.

Jul 4, 2012 | 08:50 PM

RidemyEVO

Stellar HDF Member

Joined: Apr 2009

Posts: 3,039

Likes: 11

From: Northern Ontario

Definately not normal, is it leaking from over flow at bottom of carb or from the petcock or possibly cross over hose or directly from fuel line?

Jul 4, 2012 | 08:54 PM

HarleyReece

Cruiser

Joined: Mar 2010

Posts: 237

Likes: 12

I would say not. Where exactly does it look like its coming from? Check first to make sure the throttle cables, mainly the one that opens the throttle, and make sure there's enough slack to allow the throttle to fully close. I'd imagine if it's too tight fuel would leak.

Try to see if you can find where it's coming out of.

Jul 4, 2012 | 11:45 PM

hatchetman

Road Warrior

Joined: Nov 2008

Posts: 1,595

Likes: 8

From: Vancouver Island British Colombia Canada

Most likely your float is stuck or you got some crap holding the float needle open. Pull the carb, flip it up side down & pull the bowl off. Clean it out, check the needle seat for crud. Than do a google search for the spec's to your carb & find out how many millimeters the float should be from the base of the bowl body. adjust & re install your carb.
Hatch.

Jul 5, 2012 | 06:20 AM

HarleyReece

Cruiser

Joined: Mar 2010

Posts: 237

Likes: 12

Does the bike run normal? No bogging down when you jam on the throttle?

Jul 5, 2012 | 08:20 AM

miacycles

Elite HDF Member

Joined: Sep 2007

Posts: 4,468

Likes: 12

From: Bluffton, South Carolina

When the engine is off, the throttle position has no bearing on fuel other than opening and closing will cause the accelerator pump to give a shot of fuel. However if the throttle is stationary, no fuel will flow. Fuel flows into the engine because of the vacuum formed by the venturi. Check out your fuel line for crack, holes, or splits if the fuel is on top of the engine. Hope this helps.
John

Jul 5, 2012 | 03:26 PM

D1gger

Road Captain

Joined: May 2011

Posts: 684

Likes: 9

From: Indian Head, PA

If closing the petcock stops the leak, I would tend to think the problem would be from the petcock to the carb. I have seen petcocks leak, as well as the line from the petcock to the carb.

I wouldn't think it would be the crossover line if turning the valve off stops it.