I am looking for a kicker, preferably a four stroke. Anyway, a private seller has this motor for sale, it's a Evinrude 9.9HP Model#E10RL4EE. The problem is it starts and idles fine on muffs. When on the lake "it seems to get back pressure when in the water and hard to start". The seller thinks the carb needs rebuilt, and it doesn't sound like he's even addressed the carb. I am thinking about looking at the motor. I guess the first thing I will do is check the compression, and go from there. What other things should I be paying attention too? Or should i just run. Thanks, Dave