Yamaha - Ring Gear - Starting System Component - 6BG-81891-00-00

Overview

When you hit the key, this gear is what the starter grabs to turn the engine over. If it’s worn or damaged, you’ll hear it right away—grinding, slipping, or the starter just spinning without engagement. I’ve seen engines that wouldn’t start at all because of worn teeth on the ring gear. Keeping this part in good shape makes sure every start is solid and reliable.

Key Features

• Starter Engagement Surface – Provides the contact point for the starter motor to crank the engine.

• Precision Cut Teeth – Ensures smooth engagement and reduces wear on the starter system.

• OEM Fit Accuracy – Matches Yamaha factory specs for proper alignment and operation.

• High Strength Construction – Built to handle repeated start cycles and engine load.

Engine & Boat Compatibility

Verify compatibility with your specific Yamaha outboard model and part number before installation.

FAQs

Q1: What are signs this ring gear is worn?
A: Grinding noise during startup or the starter slipping without engaging.

Q2: Can a bad ring gear prevent the engine from starting?
A: Yes, if the teeth are worn, the starter won’t be able to turn the engine.

Q3: What causes ring gear wear?
A: Frequent starting, misalignment, or starter issues can wear down the teeth.

Q4: Should I inspect the starter when replacing this?
A: Yes, both components work together and should be checked.

Q5: Is installation difficult?
A: It requires access to the flywheel area and mechanical experience.