I need help to get water out of the top of pistons in a small yanmar, any help would be appreciated, thanks

Can you pull the injectors??? If you can then do so and then turn it over by hand to get most of the wate out. Spray in some WD 40 and crank it over swith the starter. Change the oil... Put the injectors back in and prime them and start it up. Run it a few minutes and change the oil again. OH change the oil filter each time also.

Pull the injectors. Just be sure to get a manual. Sometimes there is a washer that must be replaced.