Mercury - Zero Effort Digital Control (4-Lever, Starboard Mount) Remote Control 8M0085804. OverviewThis Zero Effort control gives you a four-lever setup that keeps throttle and shift completely separate, making it easier to run a performance boat by feel. Each lever moves with a smooth, steady pull, so you can settle into the exact spot you want without overshooting. The color-coded knobs-red for throttle and black for shift-make it easy to grab the right handle when things get busy. Mounted on