Fuel vent - VTXOA
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post #1 of 7 (permalink) Old 10-16-2018, 09:08 PM Thread Starter
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Fuel vent

So I did a search and couldn’t find an answer to this. I have a 2002 1800. Just got the tank back on it today and went for a ride after filling up. Ran fine. I got home about 50 miles later and parked it. Came back to the garage 30 minutes later and noticed the gurgling sound coming from the tank and a puddle of gas under the tank vent tube under the bike. After looking I saw it suggested that the gurgling was fuel returning to the tank from fpr. It is definitely not cooling system as the sound and the drip goes away as soon as I remove the fuel cap. Any suggestions?
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post #2 of 7 (permalink) Old 10-16-2018, 09:34 PM Thread Starter
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So judging by this picture, if the gas is being forced out the vent tube then the tank would be very full, but mine is only a little over half way filled.
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post #3 of 7 (permalink) Old 10-16-2018, 10:35 PM
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Had my 2004 1800 do it once, it was very hot and parked it in the garage and noticed the gurgle and leak at vent, didnt change opening gas cap, never happened again. Dont think I would worry about it.

Red 2004 1800N
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post #4 of 7 (permalink) Old 10-16-2018, 11:07 PM Thread Starter
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Quote:
Originally Posted by AZrider43 View Post
Had my 2004 1800 do it once, it was very hot and parked it in the garage and noticed the gurgle and leak at vent, didnt change opening gas cap, never happened again. Dont think I would worry about it.
Mine stops when I open the cap so I’m assuming it is the fpr releasing pressure through the return line. Noise and drip stopped with cap open. I just didn’t think it was full enough to force gas out the vent.
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post #5 of 7 (permalink) Old 10-16-2018, 11:11 PM Thread Starter
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Quote:
Originally Posted by AZrider43 View Post
Had my 2004 1800 do it once, it was very hot and parked it in the garage and noticed the gurgle and leak at vent, didnt change opening gas cap, never happened again. Dont think I would worry about it.
And thanks for the info!
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post #6 of 7 (permalink) Old 10-17-2018, 09:04 AM
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Garage
Just got the tank back on???
A problem?? Looks like the tank has been cut open.
When you removed the fuel cap did you notice pressure releasing?
Was the gas leaking from the vent hose or just happen to use that hose since it was going down?
Fuel leaking from fp mounting plate seal possibly.

I remember reading of an 1800 with FPR return hose blocked (hose ID blocked from rubber deterioration)
I believe the FP also made a whine noise.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 192,235 VTX miles
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post #7 of 7 (permalink) Old 10-17-2018, 09:56 PM Thread Starter
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The pic is not my tank. Just for reference.
Figured out the problem. When my uncle expanded this tank, I guess he cut through the vent tube. I was able to find the top of it after pulling the fuel pump. It is now on the left side so when it sits on the kick stand and is almost full, the fuel can be forced out of the tube. I cut the tube shorter and reran it back to the top front of the right side so It won't do it again. Filled it all the way up, ran it, and parked it. All better now.
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