If you have experienced a hard shifting or shifting problem with your outboard.Īnd you have a digital control system, usually called digital throttle and shift (DTS). This control method is generally found in either a mechanical control or digital control. Where you personally move the handle either forward or backward, to change the gear position and shift your boat. But some smaller engines will pull up and push down on the shift shaft to move those gears.īut this shift mechanism will then connect to whatever form of control you have coming from your control box that is at the helm. Most outboards will use a turning or spinning motion to control the shifting. Up to what is called a shifting mechanism that is found in the engine belly pan. This shift shaft will then attach to another shift shaft on the engine that goes through the midsection of the outboard. The shifting of the lower unit is moved from the gear sets in the lower to a shift shaft that sticks out of the gear case. We want to go more in-depth on the rest of the system though here today. This is the most basic form of how a lower unit works of course. Which will then spin the prop shaft in either the forward or reverse direction. That will engage with one or the other gear that is attached to the prop shaft. Taking two gears that are attached to the prop shaft, and then taking another gear that can move either forward or backward. Though there are multiple different types of shift mechanisms within the different types of lower units.īased on the size of the gear case. The shifting of an outboard is a pretty simple mechanical operation.
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