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Custom Vehicle Discussions => CVO™ Breakout™ => Topic started by: laylonlor on June 25, 2017, 05:15:21 PM
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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 :nixweiss:
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Glad a fire did not start. Never heard of that happening like that. Let us know the details when you find out.
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Looks more than it is. No way it's a qt / liter.
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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
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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.
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GRC , sounds like that is what happened, bike was hot , i guess if ya keep riding ya don't notice it leaking out , :nixweiss:
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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.
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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.
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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?
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Does it make a difference at the DEQ? or just replace it for DEQ and then remove again?
Terry,
What's a DEQ?
Mark
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Department of Environmental Quality.
Jerry
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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 :drink:
Paul
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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.
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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?
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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.
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When it comes to Harley's they have a California only evaporative emissions system on top of the 50 state regular emissions package (note on the spec and pricing pages it is an additional cost item). It consists of a carbon canister to collect fuel vapors and a purge valve that releases the collected vapor back to the intake when the engine is running. Basically the same thing cars have had for decades, but for whatever reason the US EPA doesn't require them for motorcycles. California does. The fuel tank vent hose that just dumps vapor into the air on 49 state bikes is connected to the carbon canister on Cali bikes.
Jerry
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When it comes to Harley's they have a California only evaporative emissions system on top of the 50 state regular emissions package (note on the spec and pricing pages it is an additional cost item). It consists of a carbon canister to collect fuel vapors and a purge valve that releases the collected vapor back to the intake when the engine is running. Basically the same thing cars have had for decades, but for whatever reason the US EPA doesn't require them for motorcycles. California does. The fuel tank vent hose that just dumps vapor into the air on 49 state bikes is connected to the carbon canister on Cali bikes.
Jerry
Ok, that makes sense.
Some motorcycle manufacturers such as Honda, put the canisters on at least certain models, US wide