Fuel on floor

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harleyroy62
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Joined: Sun May 23, 2021 11:45 am
Location: Carlisle

Fuel on floor

Post by harleyroy62 » Thu Sep 30, 2021 6:46 pm

Hi
Bike parked up after a ride
Went back later to find strong smell of fuel and noticed a small puddle of fuel on ground
Check fuel tap was off
Used the bike again and it runs very well but still I find fuel on the ground
I cannot see anything obvious
Help !!!!
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Chisler
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Location: mid wales

Re: Fuel on floor

Post by Chisler » Thu Sep 30, 2021 7:18 pm

Hi it might be the float stuck, could be a bit of crap from the tank, try tapping the float bowl, good idea to fit a fuel filter
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1978 Can Am
1987 Armstrong 500
1995 Dnepr 650 outfit

Wirralman
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Location: Wirral, Merseyside

Re: Fuel on floor

Post by Wirralman » Thu Sep 30, 2021 9:49 pm

Float stuck as Chisler says, pivot in sticky or detached one side so float doesn't move or float punctured. If it was OK prior, probably just dirt ( which will disappear in the stripping process)

Needle valve worn so not sealing when float bowl rises

Fuel tap wrongly assembled so is still open when you think you've switched it off.

If it were my bike, to solve it once and for all, I'd remove tank, separate tap, clean and seal tank with POR15 if metal tank. Clean and reassemble tap so it shuts off or fit new tap. Remove anti tilt valve if fitted and substitute slim flushable inline filter as Chisler suggests. Whilst I was at it I'd remove carb strip and clean ( ultrasonic is best but poking around with wire is also effective)

Strain any fuel you've drained out if you decide to put it back in the tank.

The alternative is to tap the side of the carb and if you're lucky dislodge any dirt. Risky if your tap is faulty- one discarded fag .....

PS Check out the Teeshirt list ( early post in General section), you have shirt No 1
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lardmarc
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Re: Fuel on floor

Post by lardmarc » Thu Sep 30, 2021 10:00 pm

Turn the fuel off, run it until it stops, tap the carb a few times, turn the fuel on, start the bike, carry on.
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“Human beings, who are almost unique in having the ability to learn from the experience of others are also remarkable for their apparent disinclination to do so.” (Adams, 2009).

Wirralman
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Re: Fuel on floor

Post by Wirralman » Thu Sep 30, 2021 10:28 pm

lardmarc wrote:
Thu Sep 30, 2021 10:00 pm
Turn the fuel off, run it until it stops, tap the carb a few times, turn the fuel on, start the bike, carry on.
'Turn the fuel off ' , I thought he said his tap doesn't work ?
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hounddog
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Re: Fuel on floor

Post by hounddog » Thu Sep 30, 2021 10:32 pm

Is your fuel tap actually turning off ? It cant leak through the carb unless it can get past the tap
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Ian
------------------------------------

Armstrong MT500e
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lardmarc
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Re: Fuel on floor

Post by lardmarc » Thu Sep 30, 2021 10:40 pm

Wirralman wrote:
Thu Sep 30, 2021 10:28 pm
'Turn the fuel off ' , I thought he said his tap doesn't work ?
If it doesn't stop his fuel tap doesn't work.

If it stops, the fuel tap works then he can concentrate on the tiny bit of crap holding the float valve open.

Easy.
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“Human beings, who are almost unique in having the ability to learn from the experience of others are also remarkable for their apparent disinclination to do so.” (Adams, 2009).

deadgrass.
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Location: sheffield

Re: Fuel on floor

Post by deadgrass. » Fri Oct 01, 2021 9:21 am

Take pipe off at the tank end,
This will allow you to check fuel tap works,
While off blow down the pipe into the carb this can sometimes dislodge any muck,

Dave.
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Bonnielad
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Re: Fuel on floor

Post by Bonnielad » Fri Oct 01, 2021 1:29 pm

Also remember that you might have solved the problem but the bike will still drip for a couple of days while the rest of the crap finds its way down the engine and the bashplate.
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1985 Armstrong MT500 ('Modernised') now L.R. Green.
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