Same as any other engine, so long as it has fuel compression and a spark it WILL run!
Topping it up with water it not a good idea at all, anti-freeze does not only stop freezing, it also contains corrosion inhibitor, without it, the internals of the engine will corrode, especially anything if it is constructed of Aluminium.
If water is coming out the cylinders, this is of course what is preventing it from starting, the block has most likely cracked!
Martin