The 1999 Polaris XC 700 is a high-performance snowmobile designed to deliver exceptional power and precision on the trails. While its engine and suspension often take the spotlight, smaller components, like the gas cap, play a critical role in ensuring the machine functions safely and efficiently. This article dives deep into the details of the 1999 Polaris XC 700 gas cap, covering its design, functionality, maintenance, and replacement options.
1. The Importance of the 1999 polaris xc 700 gas cap
The gas cap might seem like a minor component of your snowmobile, but it serves essential purposes, such as:
- Sealing the Fuel Tank: Prevents fuel from evaporating or spilling during operation or storage.
- Maintaining Proper Pressure: Vented gas caps ensure the fuel tank remains at the correct pressure by allowing air to enter while preventing excessive vacuum formation.
- Protecting Against Contaminants: Shields the fuel from dirt, debris, water, and other contaminants that can harm the engine.
For the 1999 polaris xc 700 gas cap, which relies on a high-performance engine, a functioning gas cap is crucial for maintaining fuel quality and ensuring consistent power delivery.
2. Design and Features of the 1999 Polaris 700 Gas Cap
The gas cap on the Polaris XC 700 is designed with specific features to enhance functionality and durability. These include:
a. Material Composition
- Plastic or Metal Construction: Most Polaris gas caps, including those on the XC 700, are made of durable plastic or metal. Plastic gas caps are lightweight and resistant to corrosion, while metal ones are robust and long-lasting.
- Rubber Seals: The cap includes a rubber gasket to create a tight seal and prevent fuel leaks.
b. Ventilation System
- The gas cap features a venting mechanism that allows air to enter the fuel tank as fuel is consumed. This prevents a vacuum from forming, which could disrupt fuel flow to the engine.
c. Threaded Design
- The cap uses a threaded locking mechanism that ensures a secure fit. It is specifically designed to match the threading of the 1999 Polaris XC 700’s fuel tank, providing a tight and reliable seal.
3. Common Issues with 1999 polaris xc 700 gas cap
While gas caps are designed to last, they can encounter problems over time, especially in older snowmobiles like the 1999 Polaris XC 700. Common issues include:
a. Cracks or Damage
- Exposure to extreme cold, frequent usage, or improper handling can cause the plastic or rubber components to crack or deteriorate.
b. Seal Wear
- The rubber gasket can wear out, leading to poor sealing and potential fuel leaks.
c. Vent Blockage
- A clogged vent can prevent proper airflow into the fuel tank, causing performance issues such as stalling or uneven power delivery.
d. Loose Fit
- A worn-out thread or damage to the cap’s threading can result in a loose fit, increasing the risk of fuel spillage.
4. Identifying the Right Replacement Gas Cap
When replacing the gas cap on a 1999 polaris xc 700 gas cap, it’s important to choose a part that matches the specifications of the original. Here are key considerations:
a. OEM vs. Aftermarket
- OEM (Original Equipment Manufacturer): An OEM gas cap is designed specifically for the Polaris XC 700. It ensures a perfect fit and reliable performance.
- Aftermarket Options: While often more affordable, aftermarket gas caps can vary in quality. Look for trusted brands that specialize in snowmobile parts.
b. Compatibility
- Confirm the gas cap’s compatibility with the Polaris XC 700 model. The 1999 XC 700 requires a gas cap that matches its thread size and venting requirements.
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c. Material and Durability
- Choose a gas cap made from high-quality materials that can withstand extreme temperatures and resist wear.
d. Venting
- Ensure the replacement gas cap has a functional vent to maintain proper fuel pressure.
5. How to Replace the Gas Cap
Replacing the gas cap on your 1999 Polaris XC 700 is a straightforward process:
- Remove the Old Cap: Unscrew the existing gas cap by turning it counterclockwise.
- Inspect the Fuel Tank Neck: Check the tank’s threading for damage or debris. Clean it if necessary.
- Install the New Cap: Align the new cap with the tank’s threading and screw it in clockwise until it is secure.
- Test the Fit: Ensure the cap is tightly sealed and that the venting system works properly.
6. Maintenance Tips for the 1999 polaris xc 700 gas cap
To extend the lifespan of your gas cap and maintain optimal performance, follow these maintenance tips:
a. Regular Inspections
- Periodically check the gas cap for cracks, wear, or other damage.
- Inspect the rubber seal to ensure it remains flexible and intact.
b. Clean the Vent
- Use a small brush or compressed air to clean the vent opening and prevent blockages.
c. Avoid Over-Tightening
- While it’s important to secure the gas cap, over-tightening can damage the threads or rubber gasket.
d. Store Properly
- During the off-season, store your snowmobile in a dry, temperature-controlled environment to prevent damage to the gas cap and other components.
7. Where to Buy a Replacement Gas Cap
Replacement gas caps for the 1999 Polaris XC 700 are widely available. Here are some sources:
a. Polaris Dealers
- Authorized Polaris dealerships offer OEM parts, ensuring compatibility and quality.
b. Online Retailers
- Websites like PolarisPartsHouse.com, Partzilla, and Dennis Kirk stock both OEM and aftermarket gas caps for Polaris snowmobiles.
c. Local ATV and Snowmobile Shops
- Many local shops carry parts for older snowmobiles like the 1999 polaris xc 700 gas cap.
d. Used Parts
- If you’re on a budget, consider searching for used gas caps on platforms like eBay. However, inspect the part for wear or damage before purchasing.
8. Popular Gas Cap Models for the 1999 Polaris XC 700
Here are some gas cap models that are commonly used for the Polaris XC 700:
- Polaris OEM Gas Cap (Part Number 2511248): A genuine replacement part that guarantees a perfect fit.
- Moose Racing Vented Gas Cap: An aftermarket option known for its durability and reliability.
- SPI Snowmobile Gas Cap: Offers a budget-friendly alternative without compromising on quality.
9. Troubleshooting Gas Cap-Related Issues
If you suspect your gas cap is causing performance problems, use the following troubleshooting tips:
a. Check for Leaks
- If you notice a fuel smell or wetness around the tank, inspect the cap’s seal for wear or damage.
b. Inspect the Vent
- A blocked vent can cause stalling or poor engine performance. Clean the vent to restore airflow.
c. Test the Fit
- If the cap doesn’t screw on securely, check for damaged threads on the cap or fuel tank.
d. Replace When Needed
- If the gas cap is damaged or not functioning properly, replace it immediately to avoid further issues.
10. The Role of the Gas Cap in Snowmobile Safety
Beyond its functional role, the gas cap also contributes to the safety of your snowmobile:
- Prevents Fuel Leaks: Reduces the risk of fire or explosion by securely sealing the fuel tank.
- Maintains Fuel Quality: Protects against contaminants that could harm the engine.
- Ensures Proper Ventilation: Prevents dangerous pressure build-up in the tank.
By maintaining a properly functioning gas cap, you ensure the safety of both the rider and the machine.
Conclusion
The 1999 polaris xc 700 gas cap may seem like a minor component, but it plays a vital role in the performance, safety, and efficiency of the snowmobile. Understanding its design, functionality, and maintenance requirements can help you keep your machine running smoothly for years to come. Whether you’re replacing a worn-out cap or looking to upgrade to a more durable option, choosing the right gas cap ensures that your Polaris XC 700 stays trail-ready, even in the toughest conditions.
