i just bought a 1998 Mach 1 700 TRIPLE, after putting 115 kms on it i noticed my coolant res. was half empty, and she wouldn't rev past 7800. after taking off the revs i noticed coolant in the valve closest to the belt. does this have anything to do with my RPMs? how do i know if it's an o-ring or a cracked cylinder? any help on this topic would be greatly appreciated