Mercury - Trim/Tilt Motor Yamaha 50-115 Outboard Series Painted Finish 8M6007571. Overview. There's a certain moment every boater knows-that quiet pause before you drop the motor and ease away from the dock. The water settles, the breeze shifts, and you want everything beneath you to respond without hesitation. That confidence only comes when you trust the parts that keep your boat moving. With Mercury Marine part number 8M6007571, you get the kind of trim and tilt performance that feels steady