Re: oil change
I suggest siphoning the old out through the fill plug hole with a small clean hose. You won't get it all out but will get most. Refill with fresh oil. Reservoir holds 25 oz. Don't fully tighten fill plug and cycle the unit least 5 times, adding oil as needed, to purge air from system. Tighten plug to 45-50 in-lbs. BTW, I got this from the manual for this motor, which is very useful for jobs of this sort. You would be doing yourself a big favor to get one for yourself. Good luck.