May 1, 2010 at 7:55 pm
#26104
Jeff in Kentucky
Participant
How long will these engines last? Generally, the smaller the engine, air cooled instead of water cooled, and if it has higher compression for more power, the shorter the life. A 250cc Ninja might last 50,000 to 80,000 miles before a rebuild, depending on the quality of the oil, how often the oil is changed, how it is ridden, how maintenance is done, and pure luck. Here is a short site about some maintenance tips for the older and newer 250 Ninjas, with some links for more reading or question asking: