A good thing to do is get ya some engine "tuner", do a decarb as listed on can, and then use fogging oil, which is srayed through the carbs directly while the engine is running...some models have a fitting to connect the fogging oil can to. You actually "kill" the engine with the fogging oil, as it coats all internal parts of the engine for storage to inhibit rust.
How would we know?You are the one in New Zealand.If you cant find it ,you can use marvel mystery oil through the plug holes or if you are really desperate you can use any motor oil.Charlie
snapperman, contact a marine dealer, they will have a fogging oil to sell you. Any brand, Mercury, Yamaha, etc, will work for you. If you cannot get to a marine dealer, try an auto parts store.
fogging oil is not specific to marine engines. all engines that are stored including lawnmowers and cars should be fogged. go to an autoparts or even a wal-mart type store. don't pay for a name like merc.
I've never checked specs but would guess fogging oils have light mineral oil in them and something to displace water. <br /><br />I wouldn't use Marvel Mystery Oil to fog anything that sits very long. It drys and leaves a hard film that can stick rings and generally ruin your day. I had it seize approx 10-15 small model engines up that set for about a year. I used it full strength so your results may vary if mixed with gas but it stuck the motors together like they were welded. Other oils (air tool oil) and plain castor oil were ok after a year. Risoline oil is one brand that won't lock up motors and will protect for many years in storage.
Not for nothin, but how would you go about fogging a car that has to sit for the winter? Is it safe to run fogging oil through a car's exhaust system? Wouldn't a car be alright just by having a crankcase full of good oil and the oil that stays in the heads? I know this an outboard discussion board, but do people fog I/O's and inboards?
Car motors breath air and moisture up the exhaust (and through POSA slide carbs on vintage engines) just like a boat motor that sits. Condensation collects everywhere and even the inside of a valve cover can get dripping wet. This causes major rust and pitting on motors that sit long term in humid climes. I used to see it on full scale airplanes too. It's expecially bad in Florida where the dew point and temp are frequently less than 3 points apart.<br /><br />Specialty car motors (not your household chevy)that sit years without running get fogged. Especially on new rebuilds where the parts don't have a film built up from running a long time. <br /><br />Don't do it on a car with a catalytic converter or it will start plugging the converter up. I've let daily driver cars sit for 8-10 months without a problem but they were well used and had plenty of residual buildup on the parts to protect them.
