Update…..Today I installed the square Mikuni pump and had success! I ran the motor for 25 minutes with zero issues.
Observations: 1) There was still some bubbles of fuel mix in the pulse line but there was no indication that they caused any issue with performance.
2) The pump pulled fuel well (at all speeds) through 7 ft. of line even with the tank sitting on the ground.
3) This motor runs well but today’s runs was superb. Prior to today starts cold in 5 pulls but initially runs very rough (like heavily flooded or dropping a cylinder) for 2 or 3 minutes,
then smooths out. Idled well, but a bit sensitive on needles. Today with the Mikuni pump, it started in 3 pulls and was dead smooth. Idle was “pokata pokata pokata slow! No
sensitivity in the needle settings.
4) Prior to today, there was no oil droplets on the surface of the water after extensive running. (I thought this odd as I’ve always had some oil spots floating on the surface of the test
tank with all of my other motors). Today, the oil spots were there as in the past with all of my other motors.
I will need to get creative as to mounting this pump.
Thanks again for all of the great input. After many years at this hobby I know two things. 1) Great people in AOMCI and 2) I’m still learning every day.
