Hi.. I own an old, but very tidy kawasaki '92 zzr600, with 85k on the clock... till now have had a few issues, all cleared relatively simply (changed stator, reg/rec, rear shock collapsed and changed), and just when I thought things were sweet again, she started running hot, and "missing". Made it to work, then home, and checked in the morning.. and this lovely milky frothy stuff is looking at me through the oil glass. F***K. I drained the oil, which wasn't looking too bad.. I had ridden in some heavy rain on the way back.. and thought.. maybe.. somehow (magically.. you can hope), water got in through the air intake.. Discussing with amate at work recommended I pour some Chemweld down the water intake, and run it hot, and swap the oil, if its a small crack.. maybe it'll fix it (I had done that in an old magna in my teen years and drove the bastard for a year after that.. ) Bike was okay for about a week.. and then it happenned again.. got hot, run like it was missing a plug, and that white crap appeared again. Ive drained it again, poured some engine flush, more chemweld, it started beautifully and run well for like 20 mins, and.... you guessed it, got hot, again. Now, I was told sometimes you get leaks from the water pump.. I reckon I did the head gasket.. if not the block. The QUESTION... The bike starts and goes excellent, until it gets hot, then obviously the pressure puts the water through to the engine.. could I just hope that it was a gasket only??? How much do you reckon it may cost.. Im in Adelaide and mechanics and parts are really pricey. Boltons reckons at least 1600.. which it really is a bit much. I need the bike for work.. (and sanity), but with 5 little ones, to dump it for parts is not really an option, as I wont have the $$ to get another one.. How much do you guys reckon (roughly, of course) it would cost.. it is not seized, and with clean oil and coolant it pulls really nicely.. til it goes white.. Thank you..