[torchlake99]

Found this string I started when we first bought the boat and discovered I did not let all know what was going on and how it ended.    The tach was accurate, so marina suggested we re-pitched the props over winter.  No difference in rpm when I took it out in spring.   Brought out the cummins mechanic and found out someone adjusted the throttle back to hit 2750 at WOT.  With the commons mechanic we adjusted the throttle body connector (believe that is what he called it) on each motor.  We were in the marine at idle, took off the throttle covers at the helm, he was sitting by engines and I was on the helm.  Had me take one engine at a time (after warm up) to wot then I adjusted with a screw driver the stops on the throttle until we were at 3150.  He then adjusted the stop on the throttle body so that when we were at 3150 the spring had a little tension on it .  

That was it.  If I had checked this adjustment before re-pitching props it would have saved me cash and time.   Just wanted to pass this one in case someone else comes into the same situation.  I was not happy with the marina that after checking the tach and they said to re-pitch the props.  This 35 Open was new to me and the first real cruiser I have ever owned.  Big step up from what I had before.  Looking back this should have been checked before going forward with props.  I did order a manual for the cummins engines after this all went on and under the problem solving for low rpm it did say to check this early on in the cascade of possible solutions.  My guess is the previous owner set them back for some reason.  Bottom line order the manual from Cummins and read it.  Great source of information, with I had one before spending the money on altering the props (twice because  we had to re-pitch them back to factory) .  Enjoying the boat and looking forward to a great boating season.  
Kent