Looking for a reputable boat mechanic near Memphis Tn. I have a 2003 Crestliner Crappie edition with a 90 hp Johnson vro oil injected motor. I just purchased it and it hasn't ran right since I bought it. It will run on muffs but won't under full throttle on water. I bought it from a marine dealer and figured I could trust them but guess you can't trust anyone. All he had to say was I bought a used boat.