05 m7 questions

[arctic m]

i have a 05 m7 with jaws twin pipes off set timing key big air horn.

it ran fine last year and went to ride it this year and it ran like crap like it was to rich and bobbled at higher rpms.i put fresh gas in, i cleaned power valves,checked cable legnth, cleaned throttle bodies and injectors,cleaned and repleced clutches and belt,checked compression 127.5psi per cyl.,changed computers, checked servo motor.

would it be fuel pressure, or fuel pump if it could what should the psi be
thanks

 

[ARICH]

should be around 42

 

[arctic m]

how would a m7 run with the wrong fuel pressure?

 

[05M7]

It leans it out or richens it. Try using a fuel pressure regulator to get it to the 38-42 PSI range.