Gear shift issue

Nov 12, 2020
1
oday 272 patchogue ny
Hello. Just picked up an 86. 272 with the inboard westerbeke when we ran the engine we found it would not shift into gear. if you manually move the gear shift at the Engine it will go into gear and the cable moves the linkage at the throttle handle how ever the handle will not move the the linkage. the warm up knob moves in and out freely and the engine will throttle up from the the handle. the problem from my eyes seems to be at the Morse controll unit.any ideas for trouble shooting would be greatly appreciated