150 hp yamaha

[gangith]

I have a 150 hp yamaha 4 stroke 2007 that cuts no.1 and no.2 injektors when i run between 1200rpm and 1700rpm. If i move the throttle all injektors fire. If i bring the refs down to 1700 the problem consist. The same motor only reaches 5000rpm at full refs to the other motor that reaches 5600rpm.

[boats.net]

It probably needs to check with computer diagnostic to see if TPS and all other sensors readings are in range.