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locate thrmostat housing. this is usually located at or near top of cylinder head. remove t-stat cover bolts. remove old stat, clean mating surfaces thoroughly. if yours has a gasket get a new one along with stat usually can be puchased as kit. install new stat and gasket and torque bolts according to manufacturer specs. if unsure just tighten them down in steps and evenly. be careful not to overtighten as you are dealing with an aluminum housing.. test run engine to ensure you are getting good water flow, after running awhile you should be able to touch cylinder head for several seconds. if scolding hot to touch you may have a blockage or problem with impeller. PS if you are dealing with a v4/v6 you will have a thermostat on each cylinder head. if unsure spend thirty bucks and grab a service manual. good luck and happy boating
What else can I help you with?
Why is my 1995 225 HP mercury outboard overheating?
change your thermostat
Where is the thermostat on a 150 mercury black max outboard?
The thermostat on a 150 Mercury Black Max outboard motor is typically located on the cylinder head or the thermostat housing, which is usually situated near the top of the engine. To access it, you may need to remove the cover or housing that protects the thermostat. Always refer to the owner's manual for specific instructions and diagrams for your model.
Where thermostat 1999 villager?
How do you change the thermostat in 1999 Mercury Villager
Show how to change the thermostat in a 2000 Mercury Sable?
mercury sable
How do you change thermostat on 2002 mercury villager can't get bolts off?
To change the thermostat on a 2002 Mercury villager, pull the hose away. If the bolts do not come off, wiggle the fitting to expose the thermostat to be able to change it.
Why does your 15 hp Mercury outboard spit water and not spray it?
Because the thermostat controls the water flow out the pee hole
How do you change Yamaha outboard thermostat?
The Yamaha outboard thermostat must be exposed in order to be changed. Removing the T cover by unfastening the two bolts will expose the thermostat. Before removing it, look for any debris or damage that needs repair. Lift out the thermostat and replace it.
What year is mercury outboard with serial?
What year is Mercury Outboard with serial # 5863149
How do you change the impeller on a 25 hp mercury outboard?
What year? It may require special tools.
What does a 1973 150 mercury outboard motor weight?
what does a 1991 mercury 150 outboard weigh
How old is a mercury outboard serial?
hat year is this Mercury outboard 7.5h.p seal #704818
Do you need to jack up the engine to change the thermostat in a Mercury Villager?
Not needed as the thermostat is on top of the engine on the right.
