Guzzi Diag LH injector test

Now looking for a 1200 fuel pump.

My pump says it is part number 06107200 which says its an 1100 pump? Is this correct?

EBay will show up a plethora of pumps. Not the whole assembly as it is sold by Piaggio but just the pump. They are usually available for under £20 I think. As for the filter? Once again many aftermarket options.

With the hose make sure the replacement is a hose rated as fully submersible. Ordinary FI hose won't do the trick, at least not for long.

If the assembly as been water affected, as it looks like, I'd also suggest checking the pressure relief valve carefully as these can rust their spring out and fail.

Lastly. Make sure that both the tank vent hose and, most importantly, the gutter drain from the filler, are clear and able to flow. It looks like your tank has had a lot of water getting in to it and the commonest cause for that is a blocked gutter drain.

(Edit.)All the GRiSO fuel pump assemblies are the same but as I said you don't need the whole, stupidly expensive, thing. Just the pump, which is a generic Chinese part available on eBay.

To whit.

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Pump looks really rotten. Probably safer to find a good used one. Which part number to use? my part number is 06107200A which searching says it from an 1100?

Same pump in 1100 & 1200. Guzzi part number is 887423.

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Glad you found the fault

Note what Pete says about water in the tank - the drain from the gutter around the filler is very likely to block where the pipe leaves the tank at the back - if it is blocked rain water will get into the tank

Yes its blocked so currently soaking the tube with white vinegar. Tank vent is ok.

I had to 'open' mine with a 1mm then 2.5mm drill rotated by hand
Nb you don't want to drill through the pipe behind it into the tank!

Been soaking in vinegar all day How big was your blockage?
Will try a drill bit too. cheers for the tip.

Nb the connectors to the pipes are meant to unscrew from the tank - which would make cleaning easier.  Mine was just rotating and not undoing hence I attacked it with a drill

It was blocked with white salty crystals for about 20mm with 1mm drill. I think that the 2.5mm found crystals for about 25mm.

That far towards the plastic inside felt worrying - but no problems.

(I was going to blame the crystals on UK road salt - but i guess you don't get much of that in Bahrain lol)