Introduction
This manual provides essential information for the proper installation, operation, and maintenance of the Briggs & Stratton OEM 690705 Link-Choke. This component is a genuine replacement part designed to ensure the correct function of your engine's choke mechanism, which is crucial for cold starting.
Safety Information
Always observe safety precautions when working with engine components. Disconnect the spark plug wire before performing any service to prevent accidental starting. Wear appropriate personal protective equipment, such as gloves and eye protection. Refer to your engine's primary owner's manual for additional safety guidelines.
Setup and Installation
The 690705 Link-Choke is designed as a direct replacement part. Installation typically involves removing the old, damaged, or worn link and attaching the new one. The exact procedure may vary slightly depending on your specific engine model and carburetor configuration. Always consult your engine's service manual for detailed, model-specific instructions.
- Preparation: Ensure the engine is cool and the spark plug wire is disconnected. Clean the area around the carburetor to prevent debris from entering the engine.
- Locate Old Link: Identify the existing choke link connecting the choke lever to the carburetor's choke plate.
- Removal: Carefully detach the old link. Note its orientation and connection points for correct reassembly.
- Installation of New Link: Attach the new Briggs & Stratton OEM 690705 Link-Choke in the same orientation as the old one. Ensure it connects securely to both the choke lever and the choke plate.
- Verification: Manually operate the choke lever to confirm that the choke plate moves freely and fully opens and closes without binding.
Image: The Briggs & Stratton OEM 690705 Link-Choke. This component connects the choke control to the carburetor's choke plate, facilitating engine starting.
Operating Principles
The choke link is an integral part of the engine's starting system. When the choke control is engaged (typically for cold starts), the link pulls the choke plate closed, restricting airflow into the carburetor. This creates a richer fuel-to-air mixture, which is necessary for an engine to start in cold conditions. Once the engine starts and warms up, the choke should be gradually disengaged, allowing the choke plate to open and the engine to run on a normal fuel-air mixture.
Maintenance
The Briggs & Stratton OEM 690705 Link-Choke is designed for durability. Regular maintenance involves:
- Visual Inspection: Periodically inspect the link for signs of wear, bending, corrosion, or damage. Ensure it is securely attached at both ends.
- Movement Check: Verify that the choke link allows the choke plate to move freely without sticking or excessive play.
- Cleaning: Keep the link and surrounding carburetor area clean from dirt, debris, and fuel residue.
If the link shows signs of damage or excessive wear, replace it with a genuine Briggs & Stratton part to maintain optimal engine performance.
Troubleshooting
Issues related to the choke link can manifest as starting difficulties, especially in cold weather. Consider the following if you suspect a problem with the choke link:
- Engine Hard to Start (Cold): If the engine is difficult to start when cold, check if the choke link is properly engaging the choke plate. A bent or disconnected link may prevent the choke from closing fully.
- Engine Runs Rich/Smokes (Warm): If the engine runs rough, smokes excessively, or consumes too much fuel when warm, ensure the choke link allows the choke plate to fully open when the choke control is disengaged. A sticking or improperly adjusted link can keep the choke partially closed.
- Physical Damage: Inspect the link for any visible damage, such as bends, cracks, or corrosion, which can impede its function.
If troubleshooting indicates a faulty choke link, replacement is recommended.
Specifications
| Attribute | Detail |
|---|---|
| Part Number | 690705 |
| Manufacturer | Briggs & Stratton |
| Product Type | OEM Link-Choke |
| Item Weight | 1.06 ounces |
| Product Dimensions | 48 x 48 x 48 inches (Packaging/Shipping Dimensions) |
Note: Product dimensions may refer to packaging or shipping size. The actual part is significantly smaller.
Contact and Support
For further assistance, technical support, or to locate authorized service centers, please visit the official Briggs & Stratton website or contact their customer service. Always use genuine Briggs & Stratton replacement parts to ensure compatibility and performance.
Briggs & Stratton Official Website: www.briggsandstratton.com