Yamaha - Link Throttle & Shift Linkage System 6E4-15747-70-00. Overview. Linkage parts like this are what make everything feel smooth and connected when you're running a Yamaha. When one of these starts to wear or loosen up, you'll notice it right away in the throttle or shifting-it just doesn't feel as precise. I've seen small linkage issues turn into bigger frustrations on the water. Replacing it brings back that tight, responsive feel you want when you're in control.. Key Features. Precise Motion Transfer - Connects components to ensure accurate throttle or shift movement.. Durable Metal Construction - Built to handle constant movement, vibration, and marine conditions.. Maintains Control Response - Helps restore smooth and predictable engine operation.. OEM Fitment Design - Matches original specifications for proper alignment and easy installation.. Engine & Boat Compatibility. Designed for Yamaha 2-stroke outboard engines with mechanical throttle and shift linkage systems. Commonl