Re: Impeller for Early Yamaha

[billw]

If it were me, I’d pull the lower unit off, find a suitable piece of tubing long enough to simulate head pressure to the top of the power head, and see if the pump will pump water to the top of the tubing, when driving the drive shaft by a drill motor, in a bucket of water. I’m sure there was a better way to word that. Anyway, if the water does make it that far, I’d then start looking for a problem from the lower end, up. Could it be as simple as the motor’s water tube not being into the lower unit grommet correctly?

Long live American manufacturing!