Got a 2002 RC. Topped off Coolant at the right radiator, ran very rough at first start up and coolant coming out the bottom of the coolant resv. Figured it was the overflow coming out because is stopped after a minute. Rode it and barely make it out the subdivision before it hit over 260 degrees. Drained the oil and found the worst. Water in the crankcase. Any ideas or help will be greatly appreciated. Bike ran fine before I topped off the coolant, so I'm hoping I don't have to do a major breakdown or motor swap.