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[laylonlor]

stopped filled up with gas , (not over fill either), one mile to home , and  looked like quart  of gas under my bike , on the pavement

[Dennis97]

Glad a fire did not start. Never heard of that happening like that. Let us know the details when you find out.

[Road Dad]

Looks more than it is. No way it's a qt / liter.

[grc]

That's a fairly common problem on many Harley models if you fill the tank after a long ride and then park the bike.  The fuel tank is sitting on top of a very hot engine, and all that heat rises when sitting still.  The fuel heats up and expands, building pressure in the tank, until the filler cap vents to the overflow tube.  If the liquid fuel level is too high, liquid will be forced out along with the vapor.  You don't have to fill the tank to the brim for it to be overfilled btw.  I think Harley defines full at one or two inches below the filler neck tube.

Jerry

[Dennis97]

Thanks GRC, I never knew that could happen. I am surprised this hasn't happened to me. I will know what caused it if it happens now.

[laylonlor]

GRC , sounds like that is what happened, bike was hot , i guess if ya keep riding ya don't notice it leaking out ,

[ematicic]

Had that happen on a long ride. I had just got caught in a downpour, pulled over gassed up and sat about 20 minutes. About 10 miles into town gas started spewing from the fill cap. Only happened once in 22K miles but just weird.

[Ironhorse]

Very common, made worse on the California bikes with the Charcoal Canister. On mine the gas would overflow into the canister, and then provide an over rich air return back to the throttle body. The bike would run horribly until the fuel was used up. I recently removed all the canister hook ups and now vent to the outside like the rest of the 49 state bikes.

[Rooster]

Very common, made worse on the California bikes with the Charcoal Canister. On mine the gas would overflow into the canister, and then provide an over rich air return back to the throttle body. The bike would run horribly until the fuel was used up. I recently removed all the canister hook ups and now vent to the outside like the rest of the 49 state bikes.

Does it make a difference at the DEQ? or just replace it for DEQ and then remove again?

[Ironhorse]

Does it make a difference at the DEQ? or just replace it for DEQ and then remove again?

Terry,

What's a DEQ?

Mark

[grc]

Department of Environmental Quality.

Jerry

[pudgeyxj]

I had to replace the fuel cap, the vent went bad. Could not get anywhere near close to a fill up and it would just puke out the top/cap. replaced cap (over $100 Canadian, total b/s) and never had another problem.

Cheers 

Paul

[Ironhorse]

So far it hasn’t been an issue as I’ve never had to have it inspected. Motorcycles aren’t smog checked like cars here in California yet.

[Trapperdog]

Very common, made worse on the California bikes with the Charcoal Canister. On mine the gas would overflow into the canister, and then provide an over rich air return back to the throttle body. The bike would run horribly until the fuel was used up. I recently removed all the canister hook ups and now vent to the outside like the rest of the 49 state bikes.

Aren't all US Harley's 50 state EPA compliant now?

[Ironhorse]

Aren't all US Harley's 50 state EPA compliant now?

You might be right Roger, I’m probably thinking back to the days of Evo engines.