1. Introduction
This manual provides essential information for the proper installation, maintenance, and troubleshooting of your All Balls Racing 37-1116 Rear Shock Seal Head Kit. This kit is designed to meet or exceed OEM specifications for fit and performance, ensuring optimal function of your vehicle's rear shock absorber.
1.1 Product Compatibility
The All Balls Racing 37-1116 Rear Shock Seal Head Kit is compatible with the following Yamaha models:
- Yamaha IT175: 1981-1983
- Yamaha YZ100: 1982-1983
- Yamaha YZ125: 1978-1988
- Yamaha YZ250: 1980-1988
- Yamaha YZ465: 1980-1981
- Yamaha YZ490: 1983
2. Safety Information
WARNING: Improper installation or maintenance can lead to serious injury or damage to your vehicle. Always consult a qualified technician if you are unsure about any procedure.
- Always wear appropriate personal protective equipment, including eye protection and gloves, when working on your vehicle.
- Ensure the vehicle is securely supported on a stable surface before beginning any work.
- Shock absorbers contain high-pressure gas and oil. Disassembly without proper tools and knowledge can be dangerous. Seek professional assistance for shock servicing.
3. Package Contents
Verify that all components are present and undamaged before proceeding with installation.
- 1x Rear Shock Seal Head (completely assembled)
- 1x Snap Ring
Image: All Balls Racing 37-1116 Rear Shock Seal Head Kit components, showing the pre-assembled seal head and the accompanying snap ring.
4. Installation
The All Balls Racing 37-1116 Rear Shock Seal Head Kit is a direct OEM replacement and comes completely assembled for ease of installation. However, proper installation requires specialized tools and knowledge of shock absorber mechanics. It is highly recommended that installation be performed by a certified mechanic or an individual with extensive experience in motorcycle suspension repair.
4.1 General Installation Steps (Consult Vehicle Service Manual)
- Preparation: Securely lift and support the vehicle. Remove the rear shock absorber from the vehicle according to the manufacturer's instructions.
- Disassembly: Carefully disassemble the shock absorber. This typically involves releasing nitrogen pressure, draining shock fluid, and removing the old seal head. Caution: High-pressure gas can cause injury.
- Inspection: Inspect the shock shaft for any damage, pitting, or wear that could compromise the new seal. Replace the shaft if necessary.
- Installation of New Seal Head: Install the new All Balls Racing seal head. The design incorporates an air bleed hole for easier reassembly. Ensure the snap ring is correctly seated to secure the seal head.
- Reassembly & Fluid Fill: Reassemble the shock absorber, filling it with the appropriate type and amount of shock fluid as specified in your vehicle's service manual.
- Nitrogen Charge: Recharge the shock absorber with nitrogen to the manufacturer's specified pressure. This step requires specialized equipment.
- Final Checks: Reinstall the shock absorber onto the vehicle. Perform a thorough check for leaks and proper function before operating the vehicle.
5. Maintenance
Regular maintenance of your shock absorber, including the seal head, is crucial for optimal performance and longevity.
- Regular Inspection: Periodically inspect the shock shaft and seal head for any signs of oil leaks, dirt accumulation, or damage. Clean the shock shaft regularly to prevent contaminants from entering the seal.
- Fluid Changes: Adhere to your vehicle manufacturer's recommended shock fluid change intervals. Old or contaminated fluid can accelerate seal wear.
- Pressure Checks: If you have the necessary equipment, periodically check the nitrogen pressure in your shock. Low pressure can affect performance and potentially damage internal components.
6. Troubleshooting
If you experience issues with your rear shock after installing the seal head kit, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Oil Leak from Seal Head | Improper installation, damaged shock shaft, worn seal, incorrect fluid level/pressure. | Re-inspect installation, check shock shaft for damage, replace seal head if necessary, verify fluid and nitrogen levels. |
| Degraded Shock Performance (e.g., excessive bounce, harsh ride) | Incorrect nitrogen pressure, improper fluid level, internal shock damage, incorrect spring rate. | Verify nitrogen pressure and fluid levels. Inspect internal shock components. Consult a suspension specialist. |
| Unusual Noises from Shock | Loose components, air in fluid, internal damage. | Check all fasteners. Bleed air from the system. Inspect for internal damage. |
For issues not listed here or if problems persist, contact All Balls Racing customer support or a qualified suspension technician.
7. Specifications
- Model Number: 37-1116
- Auto Part Position: Rear
- Vehicle Service Type: Off-Road Motorcycles
- Automotive Fit Type: Universal Fit (for specified models)
- Material: 100% All Balls Racing components
- Item Weight: Approximately 5.2 ounces
- Product Dimensions: Approximately 4.75 x 5 x 2.5 inches
- Features: Direct OEM replacement, pre-assembled, latest OEM style seal with pre-scraper, air bleed hole for easy reassembly.
8. Warranty & Support
All Balls Racing products are manufactured to high-quality standards. For specific warranty information, product support, or to address any concerns, please contact All Balls Racing directly through their official website or customer service channels.
For additional resources and product information, visit the All Balls Racing Store on Amazon.