I have just bought a 13 foot Boston Whaler with a 40 horse Merc. on it to fly fish the salt. It is a nice platform to work from but the motor needs work. This is why the price was right. I am fairly mechanical as my business is Fuel and hydraulic systems on boats, heavy equipment, generators etc. My queston is ... Are these over sized eggbeaters something a guy can work on himself or are they so much voodoo that it is best left to a shop