Which fuel tank hose goes where? - MVAgusta.net
 
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post #1 of 6 (permalink) Old 06-12-2009, 12:27 AM Thread Starter
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Which fuel tank hose goes where?

The actual fuel lines are color coded - nice.
There are two nipples on the tank, left and right. They both look like drain lines.
And there are two hoses that fit them, one goes to a drain line, and the other looks like a vacuum line.

I'd hate to hook the vacuum line to the fuel drain on the tank =)

Does anyone know which side nipple goes to which line?
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post #2 of 6 (permalink) Old 06-12-2009, 12:55 AM
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Well, I asked my Griffon puppy Scooter, who happens to be an A Grade MV Agusta mechanic, and he removed a tank from one of my bikes to show you the two "drain lines" you need to attach the black tubes to at the bottom of the fuel pump. It should be self evident from the general area in which the black tubes sit under the fuel pump which nipple they attach to.

Yes, I have too much time on my hands, but I hope that helps.
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post #3 of 6 (permalink) Old 06-12-2009, 01:15 AM Thread Starter
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post #4 of 6 (permalink) Old 06-12-2009, 02:35 AM
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ahhh heck, my mutts got into security

I knew they should have took up a trade

next pup i get will be starting an apprenticeship from day one



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post #5 of 6 (permalink) Old 06-12-2009, 02:21 PM
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One hose is the water drain from the cap area. the other hose is, in fact, the evap emission hose on your US spec bike. It is coming from (or going to depending on year model) the charcoal canister and eventually routes to a T that connects it to the intake manifolds (via the 4 hoses that are also used for throttle body synch).

Do you have the canister inside the tank or outside?....if your evap system has been eliminated this hose will just go to atmosphere (like the water drain hose). It is all originating inside the tank at the gas cap vent.

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post #6 of 6 (permalink) Old 06-13-2009, 05:27 AM
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The two 'cast into the housing connections' are a drain line from the rear of the fuel filler area and a breather from the fuel tank which goes into the tank via the fuel filler cap. The round thing that looks like a small cooking pan is the fuel pressure regulator, the small dia pipe is a vacuum connection but it is unused on the MV, I guess the fuel pressure reg has other automotive applications.

The white and black are as you say, fuel supply and return, although strictly speeking because the fuel pressure regulator is in the fuel tank it doesn't make any difference which is which, except the line sit better the correct way around

(This reply has not been checked for punctuation, grammar, or spelling mistakes and is devoid of any big long cleverwords or condescending manner)


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