Hi , new to the forum . I have owned this Boat motor combo for 11years 1994 ranger 491vs merc 150 xri . Great combo , little heavy but hey i havent caught anything at 55mph ....


I removed my oil pump recently due to sensors failing and started mixing gas /oil. before I removed it I was having trouble with the motor only turning 3200 rpm in forward gear , running it in neutral or reverse i could throttle it to 4000 rpm or bump it to a little more.... I am stumped to why it will not rev up and plane out . The voltage regulator went out about the same time problem started also . It seems to be an electrical issue , I've checked compression 6 cylinders range from 118 to 131 psi ... I was wondering what else that it might could be ? Any help would be greatly appreciated .....