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Moto Guzzi V11 Bassa Fuel Filter Replacement

How to Replace the Fuel Filter on a Moto Guzzi V11

As noted by several others, changing the fuel filter on a Bassa (I expect on an V11EV or Jackal, too) is a bit of a PITA.

So I thought I’d pass along several tips in the interest of minimizing the pain.

Taking everything apart is a little tedious but not too bad.

Here’s what I suggest (but don’t hold me responsible if I’ve forgotten anything!):

Step 1

Disconnect the hose that runs from the fuel pump to the fuel petcock.

Then loosen the Allen screw that holds the tank to the frame.

Then lift the tank slightly then disconnect the two electrical plugs on the left hand side underneath the tank (one should be marked with red — this will help you make sure the plugs are properly matched when you put everything back together).

Next, take off the skinny tube under the middle of the tank, then the front vent hose, and finally the hose on the left hand side going from the fuel filter to the tank (it has to be removed at the fuel filter).

Step 2

After you remove the fuel tank, make a mental note of where the front fitting of the fuel filter is relative to the metal brake line and the inlet for the air box.

This will help you on reassembly as it is a bit of a kluge with all the hoses, wires, etc. under the tank.

Step 3

Attach a fairly long hose to the fuel filter (the outlet to the tank just disconnected) and put the open end of the hose in a suitable gas collection container.

There is enough gas in the filter to make a mess after you loosen the clamp that holds the filter to the frame and start moving things around. Note: Always be careful when messing with gas!

Step 4

Remove the top of the air box. Cut any tie-wraps that you need to gain access to the old filter.

Disconnect the two other hoses to the fuel filter and remove.

Step 5

If you’re using a Napa 3008, wrap several layers of duct tape around it so that it will fit snugly in the clamp.

Replace the banjo fittings using new crush washers, re-install the filter, and replace any tie wraps removed.

Here’s where it is important to have the outlet properly located, otherwise you’ll have a hard time re-attaching the hose to the tank.

Step 6

Replace the air filter if needed and re-install the air box.

Step 7

Reattach the hose from the tank to the fuel filter first (I tried doing it last and had to take everything apart and start over).

Step 8

Connect the other two hoses to the tank and then the electrical plugs.

Step 9

Re-attach tank/frame Allen screw.

Here’s a tip: spray the rubber tank bumpers with silicone to help make the tank easier to get back on (and off the next time).

Step 10

Replace the hose to the petcock. Not a fun job, but do-able!

If I left anything out or if you have questions or feedback, please let me know…

Publication Date: 2002 (?)

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