I have a '71, 125 Evinrude, my service manual says 5000rpm is wot. When underway I can get 4750rpm, but I usually cruise between 3500rpm to 4000rpm. Will I damage my motor by running it in that rpm range?<br />Thanks, John
I don't think so, John.<br /><br />What happens at part throttle (cruise) is that you use less fuel to make less power.<br /><br />I suppose one could quibble that an inch less pitch in your prop would allow 5,000rpm+ at WOT, but if you seldom use WOT it is merely academic.<br /><br />I would say you are okay.<br /><br />Good luck.
