Winterizing a 4 stroke?

[Marc Z]

I would definately winterize it. Change the oil and filter, drain and change lower unit oil. As for fogging, Yamaha reccomends it and in fact on my 150 there are special nipples so you don't even have to take off the spark plugs to spray the foggin oil in there, you just connect the fogging oil to the nipples to spray in. Then you crank the engine a few times without turning over. Good luck

[beamie]

Wonder where MTC has been, Tom from Cohasset?

He started his small engine/boat repair business and has done some tune-up work for some of the guys here. Thought he had posted an outboard winterizing thread a couple years back.

[MarshCappa]

Originally Posted by beamie

Wonder where MTC has been, Tom from Cohasset?

He started his small engine/boat repair business and has done some tune-up work for some of the guys here. Thought he had posted an outboard winterizing thread a couple years back.

When I had my skiff Tom's shop handled all my issues. Tom will give you an S-B.com discount as well. He hooked me up with some cheap trailor parts too. My motor was a 15hp 4 stroke Yamaha which was very finicky. For the 3 seasons I owned it I would have to get the carbs cleaned twice a season which I thought was a PIA. I tried the addiitives during the season to prevent the gunk up but it was always the same story. I don't miss the maintainence but i do miss the skiff. I had some good little trips with her.

[piemma]

Originally Posted by Marc Z

I would definately winterize it. Change the oil and filter, drain and change lower unit oil. As for fogging, Yamaha reccomends it and in fact on my 150 there are special nipples so you don't even have to take off the spark plugs to spray the foggin oil in there, you just connect the fogging oil to the nipples to spray in. Then you crank the engine a few times without turning over. Good luck

I agree. Mike I have my Yami winterized by a Yami dealer and they fog the moter with something. I don't think its the same fogging oil they use on a 2 stroke but I know for a fact that Jeff fogs my motor. Started on the first crank last spring. They also do the same stuff that Prof M listed. I change my water pump impeller and thermostat every year. Probably could go 2 years but I run alot and don't want any issues in the Spring. The guys also run RV antifreeze thru all my water systems. Bilge pumps, raw water washdown and live well.