: Water Pressure -yamaha 175 HPDI


5rocks
03-29-2010, 06:33 PM
Took the boat out for the first day this spring. The stream of water wasn't coming out of the back when I first started. Just stuck a wire from a bottom bouncer in a ways and the water started flowing. Then i looked a the water pressure gauge and it seemed high. So I experimented a little, in a nutshell, at 3000 RPMs, the gauge is all the way up. I must confess I am not sure what is normal running pressure. I appreciate any input any of you have. Thanks.

5rocks
03-31-2010, 11:55 AM
Checked with dealership. They said low pressure would be a problem. High pressure is not.

bob1
03-31-2010, 07:13 PM
My water pressure gauge is all the way up on my F150!