YAMAHA PIN KIT 67F-516070-FF

Function and technical context

This sprocket kit constitutes the final drive gear set of the outboard motor, responsible for transmitting power from the crankshaft to the propeller through the gear change system. The pinions work in the gearbox, where they mesh together to allow the different forward and reverse speeds of the boat. The progressive wear of these metal teeth causes loss of power in the propulsion, abnormal noises during acceleration and, in advanced cases, inability to engage, leaving the boat without steering. Its maintenance is essential to guarantee efficient and safe transmission during navigation.

When to replace this part?

Sprockets should be inspected annually, especially if you boat in waters with sand, sediment or rocky bottoms that accelerate abrasive wear. Typical symptoms include grinding or grinding noises when shifting gears, abnormal vibrations in the control lever, difficulty shifting gears accurately, and gear skipping while cruising. If you see visible erosion on the teeth or if the engine loses propulsive efficiency, preventive replacement prevents costly boating emergency repairs and prolongs the life of the drive system.

Equivalent manufacturer part numbers