'86 50 Yamaha (50ELJ) Runs hot

[Auminer]

Around 300* on the each head. I haven't changed the pump because of the strong solid stream on muffs. Yes it's been sitting for 3 years. Compression is ~100 on each cylinder. Doesn't water circulate through the heads prior to coming out?

 

[99yam40]

no it does not

How many heads does that 50 have?
I thought they only had one on each motor

 

[Auminer]

Your right of course. I was pointing the Raytek at the location of each piston upon the ONE SINGLE head. My plan was to see if any one single piston was the culprit.

 

[Auminer]

no it does not

Thank you for answering my question...