Hello,I just bought a 1987 kx 500.The bike is in great shape but needed a new top end.I did that and it seems to run excellent EXCEPT tonight when i got back from about a 5 min ride it was extremely hot.The coolent was so hot it was litterely boiling loudly for at least 5 min.I am thinking maybe the water pump isn't working.I hate to pull the pump cover just to find that it is normal for the 500 to run that hot.For my coolent i am only running water with about 3oz of water wetter.Maybe thats the problem?I have run water wetter in other bikes with great results.So what do ya think,normal?, bad water pump?, bad coolent?.
Thanks for any help, bill