Yamaha - Drive Gear Engine Gear Component 6C5-11536-00-00. Overview. When it comes to transferring power inside the engine, the drive gear is doing a lot of heavy lifting behind the scenes. If it starts to wear, you'll usually hear it first-whine, chatter, or a rough feel under load. I've seen small gear wear turn into bigger internal issues if it's left too long. Keeping a solid drive gear in place helps everything stay smooth and running the way it should.. Key Features. • Primary Power Transfer - Delivers rotational force to connected engine components.. • Precision Cut Teeth - Ensures smooth engagement and reduces internal wear.. • OEM Fit Accuracy - Matches Yamaha factory specs for proper alignment and operation.. • High Strength Construction - Built to handle continuous load and engine stress.. Engine & Boat Compatibility. Verify compatibility with your specific Yamaha outboard model and part number before installation.. FAQs. Q1: What are signs this drive gear is worn out?A: Unu