Yamaha - Drive Sprocket Drivetrain Component 93834-12016-00. Overview. You'll usually feel a worn sprocket before you actually see it-rough engagement, extra noise, and power not transferring the way it should. I've replaced a lot of these where the issue only showed up under load. The Yamaha Drive Sprocket 93834-12016-00 helps bring the drivetrain back to smooth, consistent operation. It's a simple part that makes a big difference in how everything runs.. Key Features. • Precision Tooth Engagement - Ensures smooth chain contact and consistent power transfer.. • Yamaha Engineered Fit - Built to match original specifications and alignment.. • Supports Drivetrain Efficiency - Helps maintain proper performance and reduce wear.. • Durable Metal Construction - Designed to handle friction, load, and continuous use.. • Direct Replacement Design - Installs easily using factory mounting hardware.. Engine & Boat Compatibility. The Yamaha Drive Sprocket 93834-12016-00 is designed for Yamaha engin