Thanks for the response. I do have a Merc tachometer and have the idle adjusted to 900 rpm as manual states. I did try adjusting the idle screws back 1/4 and leaned it out and past 1/4 and really didn't notice an improvement so returned to the 1.5 turns from bottom starting point.
Today's in...
In July I purchased a 2001 Mercury Outboard 50 ELPTO (SN 0T31313854) for $3000.00 Motor was claimed to be freshly tuned up/serviced and water ready fresh from a trade. Once installed It would not run faster than 13 mph by GPS ran up to 20 MPH for first 20-40 seconds then bogs down at WOT and...