See full version: How to Winterize 2-Stroke Motor That Only Runs Half of Cylinders at Idle Speed
I talked to another boat owner (who happens to be a car mechanic). He said he would not run the motor dry. He would drain the fuel bowls from his motor, and then he would use compressed air to blow all the fuel from the carburetors and the fuel lines. But he said this is tricky because someone can mistakenly blow the float out of alignment or something like that.
Does this plan sound right? Is there anything that I should change?
9. Grease the propeller shaft and put the propeller back.
Based on the replies that I have got from Craig and CharlieB, I believe I don't really need to remove _all_ the fuel from the fuel system. All I need to do is to drain the fuel bowl of each carburetor, and that should be enough. Because I will not remove all the fuel from the fuel system, this means I don't really need to worry about if the bottom 2 cylinders fire up at idle speed or not. The motor will be OK as long as some fuel/oil mixture being sucked into the bottom 2 cylinders to lubricate them even at idle speed, and as long as the pistons in the bottom 2 cylinders are still going through the motion at idle speed (to distribute the fogging oil). here
No troubles using the leftover fuel in the car. I don't think you stand to gain anything with the 50:1 in the first tank. Sounds like your winterizing procedure will keep the engine healthy in the off-season. I would add a lower unit lube change (with new drain/vent plug gaskets) to your process and rest easy.
Re: winterizing my 2 stroke outboard
Re: winterizing my 2 stroke outboard
Re: winterizing my 2 stroke outboard here
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As the cold air sets in, it’s time to get your two-stroke engine ready for the winter. The change in temperature will make your engine have different needs, since it will be working under new conditions. In order to get ready for the season, there are a few things you will need to buy to extend the life of your motor, even during the winter.
You will need to get the right mercury 2 stroke oil, along with fogging oil. Other materials include lower unit gear lube, gasoline additive, CRC or WD, marine grease, lower unit gear lube pump, and new fuel. The cost of all of these materials is typically around $50, but will make sure you get the most out of your motor. The investment definitely pays for itself. [links]