How do you winterize a motor in a I/O boat the motor is a four cly. chevy?

Question

How do you winterize a motor in a I/O boat the motor is a four cly. chevy?

Answer 1

I used to fill a five gallon bucket with antifreeze/water solution sliding the bucket up past the intake on the out drive.  Start the engine, the pump will send it out through the exhaust and pump stream, capture what you can to avoid ground pollution and pet exposure.  

On other occasions I have removed the water pump hoses and lowered the out drive, it drains most of it, never had a freeze up even at +10º