temp, difference from starboard side (high) to port

MID FL CAP

Seaman Apprentice
Joined
May 20, 2009
Messages
33
I Just Replaced T-stat And Gaskets On Yamaha 1990 225,and The Starboard Side Runs Higher (180-190*)than Port Side (120's) Any Reason As To Why The Difference? Tahnks!
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: temp, difference from starboard side (high) to port

reason why?
most likly the water pressure control grommet is defective and dumping water pressure at idle.
tends to make the top stbd side run hotter than the top port side.
gravity and all ya know.
 

MID FL CAP

Seaman Apprentice
Joined
May 20, 2009
Messages
33
Re: temp, difference from starboard side (high) to port

Thank you,rodbolt.I went ahead and changed the thermostat's,just to be one the save side!:)
 
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