no t-stat in cylinder

[jjdluz]

i replaced water pump of my 92 yamaha 200 outboard because over heating,and i loss 4 bolts checking the t-stat,find out there is none t-stat in it on both cylinder,is that ok,i run the boat wot on and off for 2 hours ,not over heating,i belive i fixed it,but no t-stat is ok ?any good advices,thanks.

 

[cebu]

Re: no t-stat in cylinder

well the thermerstates job is to restrict water flow when the engine is cold ,then open up when it gets warm, if your in a cold climate running the engine ,theres the possibility of the engine running below correct temperature ,but they are not to expensive and easy to install

 

[jjdluz]

Re: no t-stat in cylinder

what is correct temp running 92 yamaha 200 outboard,and i take my boat out mostly temp around 55 and above,and it get warm up about 70,and the motor it is about 100,is that ok without t-stat?or can i just put one in at one cylinder?

 

[rodbolt]

Re: no t-stat in cylinder

normal operating temp is in the 140-150*F range, the thermostats are also part of the pressure control system, they need to be there.