ok im buying a kx 125 from 96 and he said the only problem with the bike is that it has a small oil leak around the power valve too me it sounds like a gasket. but i want someone elses opinion on what else it could be.
The kx125 actually has 3 valves in the exhaust, a main, a left-hand one and a right-hand one. Each is fitted with o-rings which require disassembly in order to be reached. This would also be a good time to clean the power valves since they tend to become encrusted with carbon deposits which interfere with their normal operation.
