Nope,When do you lose RPM?
Would you bet your life the fuel system is perfectly clean?
How olds the gas, EFI absolutely will not run on old gas?
Your gas comes from the tank to a Yahama mar-mini fuel water seperator right,
Then to a on motor fuel filter thats new right no disrespect just making a point,
Then to the low pressure fuel pump, remove the outlet side and see if gas gushes out when you crank her over,
Then the gas goes to a vapor seperator tank, there is a screen in front of the high presurre fuel pump,it probably dirty,
Then the gas goes to the fuel injectors, remove fuel injectors and clean them like the you tube videos, install new filters on the inlet side of the fuel injectors.
Squeeze the gas primer ball, start the motor does she run great, please report back with your findings
