Description
A properly tuned fuel mixture screw is essential for optimal engine performance, fuel efficiency, and reliable cold starts. This OEM-quality replacement set from K&L SUPPLY ensures your carburetor maintains precise air-fuel ratios without lean-running issues or stumbling. Whether you’re rebuilding a carb or replacing a worn component, having the complete hardware set eliminates guesswork and prevents mid-ride failures.
- Manufacturer: K&L SUPPLY
- Part Number: 18-3689
- Contents: Complete hardware set
- Includes: Screw, spring, washer
- Also includes: O-ring seal
- Fitment: Carburetor fuel mixture adjustment
- Material: OEM-specification components
- Installation: Bolt-on replacement
- Application: Universal carbureted engines






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