What year Force and most common cause for overheating

[Dude]

Please tell me the year of my Force and what is the most common cause of this motor to overheat? Thanks
9.9hp OE 090571

 

[roscoe]

Re: What year Force and most common cause for overheating

Should be a 1994 give or take a year.

Most common causes of overheating:
Worn out impeller.
Bad thermostat.
Lack of oil in the fuel.

 

[Dude]

Re: What year Force and most common cause for overheating

Thanks roscoe, I can't find a t-stat is there a t-stat?

 

[roscoe]

Re: What year Force and most common cause for overheating

Thermostat is not located on the powerhead, like on most outboards.
Thermostat is located on the back side of the mid section.

Here is a picture.

All parts available from any Mercury dealer, or online from mercruiserparts dot com

 

[Dude]

Re: What year Force and most common cause for overheating

I'll check the t-stat. Thanks Rosco for your help.

 

[Dude]

Re: What year Force and most common cause for overheating

Roscoe, I found the t-stat and removed it and the engine still get too hot to the touch. A water pump is on order.
Having replaced a number of water pumps I would imagine the one should not be difficult. Thanks