THAT OLD SAYING APPLIES HERE "IF IT AIN'T BROKE DONT FIX IT" I HAD A FEW EXTRA MINUTES YESTERDAY BEFORE TAKING IT OUT, SO I DECIDED TO TWEAK THE ENGINE A BIT, AN 87 125 HP FORCE. I JUST GOT A MANUAL AND WAS CHECKING A FEW THINGS OUT.I WAS CHECKING THE CARBS TO SEE IF THEY WERE IN SYNC. I FOUND THEY NEEDED TO BE SYNCHRONIZED. FOLLOWED THE INSTRUCTIONS, AND NOW I WISH I WOULD OF LEFT THEM UN SYNCHRONIZED. PUT THE BOAT IN THE WATER, THE IDLE WAS SO LOW IT WANTED TO STALL. IT SHOOK AT SPEEDS IT NEVER HAD BEFORE,AND IT SEEM TO BOG DOWN WHEN I WOULD THROTTLE UP.TO TOP IT ALL OF IT SOUNDED WEIRED.CAN ANY ONE GIVE ADVICE?, OTHER THAN NEXT TIME LEAVE IT ALONE.<br /> THANKS