How do I winterize a 50 horsepower Mercury motor?

Answer by  worker2148 (144)

Empty/burn the gas out of the motor. Change the oil and oil filter. Mix a fuel stabilizer with a higher grade fuel than was previously used. Allow the motor to fun for a few minutes to allow the stabilizer to process throught the carburetor. Cover and store.

Answer by  coronato (65)

Flush the motor with fresh water while its running and let the motor run out of gas to ensure there is no gas left in the carburator for storage. Make sure all the water is drained so that it does not freeze. Change oil and all lubricants. Grease fittings and store inside if available.

Answer by  mrjm (41)

Disconnect the fuel line and drain. Remove prop from engine. Run your motor until it stops running. Remove spark plugs and use fogging oil in each of the cylinders. Replace spark plugs. Change the oils in your motor. Cover your motor and you'll be done!

Answer by  pamnyogi (159)

First, you drain completely the motor. You then put in a winter antifreeze specifically for marine motors. You must also get it out of the water, under cover preferably. Make sure you use the specific amount and correct kind of antifreeze.

Answer by  Michelle54 (13)

To winterize, you should flush the engine with fresh water using flush muffs or simialr device. Let all water drain from the engine and wash down the engine with soap and water, rinse thoroughly. Fill with fuel and add a fuel stabilizer as instructed.

Answer by  lonewolf198 (18)

First add sta-bilt to your gas. Start the engine and let warm up. disconect fuel hose and let engine run out of gas, this protects the carberator. lossen the vent plug on your lower unit. remove the drain plug on the lower unit. Drain the oil and replace with approved oil. retighten plugs