Is a kawasaki 97 1500 vulcan a pretty reliable bike it has 37,000miles on it an leaks a little oil from the crankcase vent could it be from overfilling
by 
troy
ANSWERS: 2
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Yes it is decently reliable. Often times over filling the oil can be far worse than having a slightly low oil. It can cause seals to rupture and the engine to destroy itself.
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As piston rings and cylinder walls wear, there is more "blow by". That is the burning gas in the cylinder leaks around the rings and end gap. That is most likely the cause of oil coming out of the crankcase. That is a lot of mileage for a Kawasaki.
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