Interestingly enough, what is called a stator in some Mercury Marine models is now called an alternator by Mercury Marine for the batteryless EFI models.
The stator being a part all alternators of course.
I am now wondering if these batteryless EFI's are inherently harder to pull start than non EFI models. It takes some mechanical energy to create the electrical energy needed to operate the ECU and electric fuel pump.
This thread talks about using an electric drill motor to crank the motor.
https://forums.iboats.com/threads/your-best-technique-for-rope-starting-merc-20hp-efi.780631/
I agree that motors can be like living animals. Each having their own preferences as to how they like to wake up.
Since your model does not use a battery it relies upon the alternator to generate the electrical power needed by the ECU and the electric fuel pump. Permanent magnet alternators...
Running a drill motor, or pulling a start cord, more slowly is counter intuitive to my thinking.
Pull the cord more slowly and let us know what the result is please.
Voltage is a function of the speed of a magnet passing by a coil. Amongst other variables. Distance between a magnet and the coil being another.
.3 inch gap for the sensor seems to be abnormal. What does your SM specify?
0.6 volts seems low. Is that peak voltage or RMS voltage? What does your...
What type of control box? 703 side mount or 704 to mount?
Former has wire oncolour coded bullet connectors which can be undone. Latter has two round twist lock connectors. Undo those and remove the ten pin harness that way.
If the motor has a ten pin harness connected to it, and a control box/key switch connected to the end of that harness, and it all works well, why not move everything over from one boat to the other?
The motor has been modified. It would have come from Yamaha with a ten pin connector on the main engine harness. That connector would have connected with a corresponding 10 pin connector in the ten pin wire harness.
