Right, after replyin to another thread;

injection fuel pump

It apperas the gsxr1000 in tank fuel pump i'm using, in conjunction with the 2005 r1 inj engine, is self regulating and no return to tank is needed...
So how do i 'disable' the fpr? take the vacuum line off? blank the fuel return? or both..? any help appreciated.

cheers

you must blank off the return, the vac line is an emmissions device which lowers line pressure at idle or high vacuum conditions and as you are not using the original R1 reg it serves no pupose so either plug it or leave it on the reg if its staying on your fuel rail

Rich

[Edited on 26/1/08 by bigrich]