the moter seems to run ok out of gear but when enguaged it dies out or has no power. the fuel is new and the mix is ok this boat was sitting for 3 years but ran good befor it was stored so i am told. it is a 1976 johnson 55 hp model 55el76e. any info on what to check first second or third would be helpful. poss timing or fuel ??? if so any specs. would help. Thanks AC