87 black max hot high rpm with video

[thejeep007]

I have an 87 black max 135 that seems to be running hot on high rpm but cools right down at lower rpm. New pump kit, poppet and stats. And help would be appreciated. https://youtu.be/0qVqIaayfw4

 

[Faztbullet]

Water pressure is fine and I wouldnt pay much attention to the temp gauge as they are inaccurate as crap. If you was WOT you need to reprop as your about 1000rpm low. Its odd your gauge has degrees on it as most OEM outboard temp gauges only have cold to hot

http://www.marineengine.com/newparts/part_details.php?pnum=MER79-895287A01

 

[thejeep007]

When I got the boat it didn't have a temp gauge, but sensor on port head. Added both pressure and temp gauge. Paranoid about overheating after dealing with the problem in a previous boat. I try to keep away from wot and beating up the old girl. I did by temp sender from the gauge manufacturer to see if just set up for different resistances. Thanks for your help

 

[mike6868]

does your warning buzzer go off too?

 

[thejeep007]

No buzzer has gone off and fuction tested it to make sure it works by grounding sensor.