Chinese Starter Clutch Lock Nut
This starter clutch nut is used on the GY6 150cc engine. It may require a special tool to remove from the engine to avoid damaging the nut. Please use the measurements and pictures to help you match the parts you are needing.
Lock nut details:
- Nut ID: 21mm [.82"]
- Nut OD: 30.9mm [1.22"]
- Also known as the flywheel nut