I HAVE A 1976 135 HP JOHNSON I PUT NEW PISTON IN MOTOR BEFORE I TOOK IT APART I HAD I BAD CYL BUT COULD GET 4200RPMS OUT OF MOTOR WITH 3 CYLS.BUT NOW I HAVE GOOD COMMPRESSION IDLES STEADY BUT CANNOT GET IT TO RUN OVER 1800 RPM IT BOGS AND RPMS DROP WHEN I TRY TO GET IT TO RUN FASTER...I HAD OLD BAD GAS THAT I DID NOT KNOW ABOUT BEFORE IT WAS TO LATE I CHANGED THE FUEL...I THINK IT HAS CLOGED JETS <br />PLEASE HELP <br />BOB OGLE @AOL.COM IN PHILA