I'm confused on which is the correct impeller for my 1995 Evinrude 65/90 1768 Roughneck boat. I believe it is a M73 jet on it. I had a boat mechanic tell me I had the wrong impeller but didn't tell me what it was supposed to be. Right now it has a 7 3/8" impeller. Motor seems kind of sluggish and motor doesn't get to full RPM's. Most people say the motor is tired. It has just been rebuilt a year or so ago. I believe I need a 7 3/16" impeller. Will that little bit of difference let the motor get up to full RPM? Impellers are a little different than props as there is literally hundreds of propeller options not so much on impellers. Any thoughts?
bryan
bryan