Motor runs fine at high and low RPM ranges...at mid-range 4,000 RPM, RPM decreased in about 5 seconds to 2,500 RPM. Timing, fuel leaks, linkage,propeller all have been checked out OK. I would appreciate any suggestions. Thank you..Sea Jay
Ahoy, Sea Jay.<br /><br />I suspect and intermediate speed circuit in one carb is clogged, dropping that cylinder at intermediate speeds.<br /><br />Good luck.
