How long can engine oil last in motorcycle?

I just bought a Honda CBR 250r from a friend. He bought it brand-new at the end of 2012, so it s 3 years old now. But the milage is only about 160, pretty low. Most of the time it just stays in his garage, without any maintenance. I ve been using it for two weeks since I bought it, and added another 150 miles to it. I wonder if I need to change the engine oil and do some other maintenances now? I also checked the oil, it is full and looks pretty clear.

How long can engine oil last in an unused and brand-new motorcycle? I tried to make an appointment to the dealer and schedule a maintenance but the local Honda dealer here won t be available until a month later. Thanks a lot.

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