It depends on the particular engine in question. Most models locate the thermostat(s) in the cylinder head(s). They may, depending on the model, be situated in the top, or the bottom portion of the head. The exception would be a V4 model, in which the thermostats are enclosed in a housing located on the backside of the adapter plate, between the heads. The housing is easily identified by the water passage hoses running to the cylinder heads.
Model number J150OLEVR is a 1997, 150hp Johnson outboard.
How much doe a 1997 2 stroke johnson outboard motor weigh
between 90-120
should be able to find it at this site http://www.marineengine.com/manuals/johnson/index.html?gclid=CKXf-92Xg5QCFRZjnAodnjN_WA
My grandson has a Johnson 8 outboard motor,Model JBREUC. We were working on it, and noticed a sticker on the inside of the motor cover. (cowling?) It indicates a date of 1997. This might give you ballpark date. Look at yours and see if you,too, have a sticker. Good luck!
1997
.040
Yes and it on the rear of cylinder head...
follow the top radiator hose to the motor the hose is clamped to the thermostat housing remove the housing and you will find your thermostat
The serial / model number sticker on a 1997 model, 25 hp Mercury outboard is located on the starboard, (right) side of the swivel bracket.
50 to 1
The 1997 model, 6 hp Yamaha outboard, requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.