I was recently given a 1987 Glasstream StarLine 170 Malibu with a Mercruiser 2.5 liter motor and Alpha 1 sterndrive. I'm looking for the service repair manual for this engine and sterndrive and see several 'free" pdf downloads available on-line. Does anyone know the service manual # I need? This boat hasn't run in a couple of years and though it does turn over it won't start. The service lable on the motor is torn and I don't have info on point gap, plug gap, timing etc.