My gear shift mechanism broke inside Sea Bjorn's, E30+, binnacle tube. It's a plastic part in the shaft where the wheel meets the inside of the binnacle. It's the part that sends both the transmission (port) and throttle (starboard) controls down the binnacle. Anyone have an idea on how to replace that part? The lever has required a heavy hand for the 10 months I've owned her. Thanks, Robert