1997 FORMULA SUN SPORT TWIN 454 JUST GOT DONE <br />PUTTING IN MANIFOLDS AND RISERS DID IT MYSELF.<br />THAT WAS PRETTY INTERESTING TO SAY THE LEAST.<br />GOT TO START STBD RUNS GREAT PRT WILL NOT START <br />UNLESS YOU HAVE HALF OR BETTER THROTTLE RUNS FINE<br />GO TO BACK OFF SHUTS DOWN CLEANED CARB <br />CHECKED GAS TO CARB FINE/CHECKED TUBE TO FUEL PUMP<br />NO GAS WILL RUN AT 2200RPMS. SOMEONE SUGGESTED IT SOUNDS LIKE THE PTS ARE CLOSED OR A VACCUUM LEAK.ALSO THERE IS A SQUEALING NOISE SOOUNDS LIKE BELTS ARE SLIPPING WOULD THE CIRCULATING PUMP IF BAD MAKE THAT NOISE... IT GOES AWAY WHEN THROTTLING THE ENGINE.<br /><br />IF ANY BODY IS A MENTOR THAT KNOWS MERCRUISER 454 <br />AND HAS ENCOUNTER THESE PROBLEMS YOUR INSIGHT WOULD BE HELPFUL
