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HEY EVERYBODY. I HAVE A 1993 5.7 CARBED MERCRUISER IN A 24 CHAPARRAL I AM THINKING ABOUT CONVERTING TO FUEL INJECTION. HAS ANYBODY PERFORMED THIS CONVERSION ON A SIMULAR SIZE BOAT? IN PARTICULAR, I AM INTERSETED IN THE FUEL MILAGE DIFFERENCE BETWEEN CARBED AND FUEL INJECTION. ALSO, WOULD LIKE TO KNOW WHO MANUFACTURED YOUR CONVERSION KIT. AS OF NOW WHEN I SHUT DOWN THE MOTOR IT WILL RESTART FINE IN THE FIRST TWO OR THREE MINUTES. AFTER THAT IT WILL CRANK OVER FOR ABOUT 30 - 45 SECONDS BEFORE REFIRING. I HAVE TRIED PUMPING THE THROTTLE, PUSHING IT UP JUST A LITTLE, AND PUSHING THE THROTTLE TO WIDE OPEN, STILL DOES THE SAME THING. THIS HAPPENS AT BOTH COLD START AND WHEN WARMED UP. AFTER SHE FIRES UP SHE RUNS LIKE A DREAM. PLUGS, FILTERS, CAP AND ROTOR ARE ALL NEW. I REPLACE EVERY YEAR BECAUSE IT MAKES ME FEEL BETTER. I AM THINKING THE CARB IS LOOSING FUEL AND HAS TOO CRANK AWHILE TO REFILL THE BOWL??? IS IT EVEN POSSIBLE FOR THE BOWL TO SIPHON BACK TO THE TANK? ANY INPUT WOULD BE APPRECIATED. THANKS TO ALL IN ADVANCE.
I have a 1997 seaswirl 208 bowrider with a 5.7 litre gli engine that is giving me fits.I purchased it last year with a full tank of gas and it ran perfect. I filled it up with 93 octane fuel at the gas station not realizing that the gas had ethanol in it. since then I have problems starting it at the launch. Once it is warmed up, it runs fine. shut it off for an hour or so and when I restart it cranks over and over without starting. once it does start, it will bog down at low speed.The engine only has 230 hours on it and it has been serviced regularly. today I filled it up at a marina with 91 octane and again it runs fine until you shut it down for an hour or so. any help or advice would be appreciated. Jeff