Bike has issues starting with full tank - MVAgusta.net
 
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post #1 of 6 (permalink) Old 06-18-2015, 01:15 AM Thread Starter
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Bike has issues starting with full tank

Anyone else experience this? The fix is to not put as much gas is but in my opinion that really isn't a fix.

When I fill the tank to the top, close the lid and start the bike it has a ruff time firing up. Almost like a bad battery.

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post #2 of 6 (permalink) Old 06-18-2015, 04:17 AM
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Carbon cannister

You're probably getting fuel into the carbon emissions canister when over filling, or have you removed it ?

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post #3 of 6 (permalink) Old 06-18-2015, 05:29 AM
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Donny is spot on. Do not fill tank above lower edge of filler tube in tank. Common problem for any brand Evap equipped bikes.

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post #4 of 6 (permalink) Old 06-18-2015, 08:00 AM Thread Starter
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Quote:
Originally Posted by Donsy View Post
You're probably getting fuel into the carbon emissions canister when over filling, or have you removed it ?
I don't have a carbon emissions canister anymore and I do not over fill.

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Originally Posted by esq'z me View Post
Donny is spot on. Do not fill tank above lower edge of filler tube in tank. Common problem for any brand Evap equipped bikes.
What is a filler tube? All I am doing is the same thing I do with all my bikes. Fill up and go.

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post #5 of 6 (permalink) Old 06-18-2015, 08:18 AM
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Quote:
Originally Posted by Atom View Post
I don't have a carbon emissions canister anymore and I do not over fill.



What is a filler tube? All I am doing is the same thing I do with all my bikes. Fill up and go.

Hmmmm...

Well, the filler tube is a neck that protrudes down into the tank from the hole where the cap is located....usually just a couple of inches, sometimes more.
Really old bikes (like my 1971 Honda) have none and filling to the top usually results in gas seeping from the vent onto the top of the tank.

If you have removed the evap can then I am not sure why it would be hard starting only after a fill up. The EFI system has no idea how much fuel is in the tank and the fuel pressure at the injectors would be the same with a full tank or a near empty tank.

The only thing that changes is the fuel vapors releasing through the gas cap vent. So if the vent is to open atmosphere then that won't affect starting.

I got nothing.

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post #6 of 6 (permalink) Old 06-18-2015, 04:19 PM
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My Rivale has started to do this but not consistently. It just cranks but doesn't fire. If I wait and try it there's a chance it still won't fire. If I shut off the ignition, start it again and wait for all the checks and fuel to pressurize, then it starts. I have not noticed this with a full tank. I have removed my EVAP canister.
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