Ducati Monster Forum

Moto Board => Tech => Topic started by: djomlas on October 15, 2008, 07:08:47 PM

Title: FI tank on carbed bike?
Post by: djomlas on October 15, 2008, 07:08:47 PM
any way to do this?
what is involved?
also, what would work on a 2000 model if that matters depending on the shape of the bottom of te tank clearing stuff underneath...?
Title: Re: FI tank on carbed bike?
Post by: Norm on October 15, 2008, 10:46:41 PM
I don't know what years are interchangeable & which aren't, but the swap is easy, just block off the extra lines & go.
Title: Re: FI tank on carbed bike?
Post by: bigiain on October 16, 2008, 04:21:14 AM
The other thing to consider is the tank/seat change that happened sometime around 2000 - I know my '99 has the "old" tank and seat, and if I wanted to fit a "new" tank, the seat wouldn't fit correctly. Not sure whether that change was between '99 and '00 or '00 and '01, but I _think_ it pre-dated the ST frame change. I suspect _most_ FI tanks will fit "new" seats.

big
Title: Re: FI tank on carbed bike?
Post by: Duck-Stew on October 16, 2008, 07:04:18 AM
The seat change happened between 1999 and 2000.  Since your bike is a 2000, it has the newer seat so you're good there.  I assume you're talking about a steel EFI tank, and not a plastic unit, right?!?  If your replacement tank is steel, then the items below definately apply.  Plastic tank...uh, you're on your own there.

As far as the fuel lines go, here's how to do it:

Treat the two vent hoses as you would on your carbed tank as they route the same.

Plug off the 'DELIVERY' outlet of the efi tank.

Connect the 'RETURN' outlet of the tank to your fuel system (I believe the first component is the filter, and then the vacuum petcock).

Be certain that the two rubber hoses inside the tank are in good shape because if they should break, they fall into the tank and become siphons that will drain the fuel right out of the tank through one of the two vent hose outlets.  BAD things can happen there.  I know.

After that...DONE!  [beer]
Title: Re: FI tank on carbed bike?
Post by: hypurone on October 16, 2008, 07:06:02 AM
And me thinks you will have a problem with the internal pump on the FI tank. by design, most FI pumps do NOT flow fuel when they are not running. Not 100% sure on the Duc FI pumps but if so, you will have to work out how to elinimate the pump or bypass it or something to get fuel to flow via gravity...

EDIT: Or do what Duck-Stew just stated.  [laugh]
Title: Re: FI tank on carbed bike?
Post by: Duck-Stew on October 16, 2008, 07:26:42 AM
Quote from: hypurone on October 16, 2008, 07:06:02 AM
And me thinks you will have a problem with the internal pump on the FI tank. by design, most FI pumps do NOT flow fuel when they are not running. Not 100% sure on the Duc FI pumps but if so, you will have to work out how to elinimate the pump or bypass it or something to get fuel to flow via gravity...

EDIT: Or do what Duck-Stew just stated.  [laugh]

Oh, yeah...  I forgot to mention that you'll need to remove the fuel-pump and pick-up screen from inside the tank.  The level sender out of your carbed tank needs to be put into the EFI tank.  The green seal between the two is sold seperately at the Duc dealership so I'd recommend getting a new one.  I think they're like $6-$8.