Johnson 2hp engine temp

[narrowfarm]

Hello my 1984 Johnson 2HP runs good and pumps out nice water. I did notice that the exhaust side of the cylinder is hot to touch . My temp gun says 130 degress Fahrenheit at about idle and 170 degrees Fahrenheit about 3/4 engine speed on the exhaust side. It runs good but I never noticed this temp. The other side of the cylinder runs about 75 degrees Fahrenheit. This is a single cylinder engine. Does the exhaust plate run this hot??? does the water run behind the exhaust plate??? or could there be a coolant block behind the exhaust plate??? or is this normal??? thanks john

 

[Fleetwin]

Yes, water mixes with exhaust behind that plate. I think it's fine.

 

[racerone]

The exhaust cover is not water cooled and will run hotter than rest of the motor.

 

[boobie]

It's normal.........

 

[supercoolbabe]

I turned the high speed knob towards the rich side about 1/2 turn. Doesn't run nearly as hot

 

[GA_Boater]

I turned the high speed knob towards the rich side about 1/2 turn. Doesn't run nearly as hot

supercoolbabe Please stop posting to inactive threads.

Closed.