Can anyone recommend a fuel filter and where to purchase it for my '03 R1 injected engine.

Do I fit a filter before the fuel pump or just fit one after fuel pump.

If your not using the oringinal R1 pump,which has a filter built in,you need a high flow rate filter specifically for fuel injection,before the pump is best,check out EBAY item number 150208922005.this is ideal for your application.

[Edited on 19/05/04 by PAUL FISHER]
Rescued attachment injection fuel filter.jpg

Try MNR themselves or Europa spares under fueling they have a small see through bike filter for £1.50ish and sounds fine for all bike engines

I have a small low pressure filter before the pump and a high pressure filter after it.

The small filter adapts the output of the tank to the input of the fuel pump and the high pressure one is from a Ford Focus