I recently purchased a 1986 VFR 750 "barn find" that had last been registed 11 years ago. The engine was seized and there was water - not coolant in two upper cylinders, and when I drained the oil water preceeded any flow of oil from the sump. The oil was seperate from the water and there was no sign of coolant in the radiator or associated plumbing. On stripping the engine down there is no rust damage anywhere but in the two cylinders so the engine will require re-boring and a new set of pistons. All oil passages had clean (not water contaminated) but could have done with an oil change. The machine has done what I would assess to be a genuine 28,000kms and is worth saving, there being no appreciable wear anywhere, and appart from the cylinders and coolant pump rust, is in very good condition. My question is - where did the water find it's way into the engine as to my thinking, it had been used in place of coolant? It had not been run since the leak occured and would appear to have been a slow leak while in storage. The coolant pipes are contaminated with "sludge" and the pump impellor is almost completely rusted away. Head gaskets do not appear to have been breached appart from one very minor intusion in one cylinder which I even wonder if it acctually leaked? The late owner is"apparently" as mystified as I am about the whole thing? Clearly I would like to save this old girl but must first be certain the problem will not re-occure so need to find the cause of the original failure and address it. Any fool who uses water in place of coolant wants shooting but that is story for another day. Suggestions of where to start looking would be appreciated - I am thinking to pressure test the cylinder heads to ensure there are no corrosion holes inside the port areas but appart from that I am lost for ideas?