1. Run it out of gas.
2. Pull the plugs and ground the ignition wires.
3. Use the electric starter or a drill gun on the flywheel nut turning clockwise to turn the motor over, while spraying fogging oil into the carb/intake. Keep spraying until you see a mist of fogging oil come out the plug holes. For motors with multiple carbs, repeat this process for each cylinder.
4. After seeing spray, spray more into each cylinder by rotating the flywheel clockwise so the piston is all the way toward the crank. Repeat for each cylinder and aim for the top of the cylinder. Once completed, slowly turn over the motor by hand 4-5 times to distribute all the oil thoughout.
5. Drain the gearcase, pressure test, replace oil.
6. Lubricate all fittings as explained in the owners manual.
7. I spray down the whole engine with WD-40 and clean up anything that doesn't look right.
8. If only a 2 cylinder, rotate the flywheel so the intake/exhaust ports are COVERED UP by the pistons to prevent air flow in the cylinders.
9. Replace the plugs and snug down, putting the plug leads back on them of course.
10. Next time you run it there will be a giant cloud of smoke for about 3-4 minutes.
The motor will drip all kinds of oil out of it, but I guarantee it isn't getting any corrosion internally by following this method......
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