I'm sure this has been covered, but my search feature won't work. And if this belongs elsewhere I apologize for that too. What is the average hours to expect from a small engine? I realize there are about a zillion variables, like maintenance and so forth. Plus all the different motors. I'm just looking for a generality. Been looking at some used equipment, and would like a better understanding of what's low hours and what's high hours. When would you not consider a purchase due to hours. My friend told me the dealer told him that 1500 hours is about the normal lifespan for the average mower engine. Would you agree? I'm most likely going to end up with a 23 hp Kawasaki. Seen some with 900 to 1300 hours, also seen a lot that have already had new engines. I don't anticipate putting a huge amount of hours on, but if a 1300 hour motor is only going to give me 200 hours no matter what I do, maybe not worth it. Or would the right deal make it worthwhile even having to replace the engine before long. What's a 23 Kawi go for nowadays? Any suggestions as to preventive maintenance if I do get something relatively high hours, like different oil weight or timing/spark mods? Thanks for the input.