As for chainsaw hours, they are very little. I have been looking for a boat on and off for years and some of the engines have almost no hours on them,,, like 10 hrs. per year. As for my Stihl 026, I bet there is not 50 hrs. on it and had it 23 yrs. I never cared much for it. it was always a dog. On the other hand , my 034 , I have had for 30 years and 3 days now. Yep, March 28, 1992. I have a lot of hours on that, likely 500. That is a lot of hours. I do have a 5 horse Merc trolling motor with 112 hours in it and it is only 2 yrs, old.