was given 89 bayliner with very low hrs on it had entire ignition done to get it running marina that did work told me it ran good but they used their fuel tank and to drain my gas but I already but 15 gal fresh gas in with 5 gal 2yr old gas so i took it out had to start it with starting fluid run great at first then it would bog down at top end and slowly shut down sequence would repete every time i tryed only a little worse each time any sugestions would help