Singles Match Author: Aug 14, 2020 Yamaha’s new Helm Master EX joystick system now allows boat owners with single-engine applications to enjoy joystick control. Here’s good news for owners of boats powered by a single outboard. Those vessels now can be equipped with joystick docking control and a host of other features previously limited to multi-engine rigs with the introduction of the new Yamaha Helm Master EX system. Offered for single- to quad-engine boats, Helm Master EX will also be sold through Yamaha dealers, the first time an OEM joystick system has been available to retail customers for up-fitting or re-power applications.