Rx 951 Di running issue low rpm

[devronl]

Can anyone shed some light on these spark plugs. My rx will only reach about 3500 rpm in the water and will not plane out. The mag spark is the light one and the pto plug is the dark one. I took this ski on not running. I'm about to take off the entire fuel rail from my 01 gtx an see if anything changes. But I'm stumped ATM. If there are any other recommendations lmk

 

[etemplet]

Did you check fuel pressure? I send injectors and air injectors off for cleaning that way I eliminate any issues with them.