My wife and I were going to fly my 415C, C85, in the local Frederick, Md area and during the runup, there was no RPM drop at 1800 or increase at idle which is to indicate it is working. Tried several things with no luck. Was very hot and very high humidity. Not wanting to take a chance on carb ice I put the bird away and will have a mechanic look at it Monday. I should have had the wife pull the carb heat knob on and off as I looked under the cowl to see if it was connected but didn't think of that till half way home. Other than the carb heat not being connected any other ideas ? Flew great the last time and all previous times.
Jim Truxel N3439H #4064
