My bayliner capri with a volvo 4cyl and a 270 outdrive goes into gear but when the engine revs out to about 5k rpm the boat only goes about 8-10 mph i just got the boat and am a little more familiar with pre alpha mercruisers. When the engine is off and i put it in forward gear the prop nearly free spins by hand when i turn it forward but if i try to rotate it backwards by hands it locks in and will turn the motor over so not sure if its the cone clutch, shifter linkage or what. Again im completely new to volvos and not exactly a master mechanic so any help is greatly appreciated. Thanks!