I own a 2003 zx636 kawasaki There was a pebble in my radiator fan which caused it to stop spinning hence causing my engine to overheat and reach HI temperature. The engine started to smoke while i was in idle stuck in traffic. I turned it off and pushed it off the road. I let it cool, turned it on and rode it to work, seemed fine didnt think much of it. 8 hours later after my shift, rode it home, temperatures reached 115 but the HI indicator never came on. Took the stone out and a hose connecting to the radiator causing the coolant to spill so now i have to flush the system. So heres my dilemna: I found out that if my engine reached HI temperatures and started to smoke there might have been possible engine damage. Since i managed to turn it on and ride it without problems i figure there might not of been any if much damage done. Now while my bike is fairly taken apart, should i check the engine for damage to the cylinders or gasket? Or should i just leave it, ride it and see if any problems come up then fix it? I heard its not expensive to replace the gasket or cylinders but just very very time consuming which cost in labour, unless i do it myself. Would riding with some engine damage now cause further problems in the future? Meaning whether i replace the gasket now or in 6 months there wouldn't be too much of a difference, or should i either check it myself/get it checked which might be $$$ Otherwize the only other issue is my engine oil pressure light is coming on when i switch my bike on, it goes off after i start the engine which stalls after about 10s, either cause i took my clutch lever out but its in neutral so i dont see why it would stall, or because theres no coolant. Or is that a problem linked to the engine? I dont remember whether the engine oil pressure light came on during my ride home or not. Any help would be much appreciated, i dont have a tl;dr version so if you actually read this all and put some input i thank you deeply.