The Yamaha Blaster 200 is a legendary ATV, beloved for its raw power and playful handling. But for those seeking to push the limits, a big bore kit offers a significant performance upgrade, transforming this already fun machine into a true powerhouse. This guide delves into everything you need to know about Yamaha Blaster 200 big bore kits, from choosing the right kit to installation and maintenance.
Understanding Big Bore Kits
A big bore kit fundamentally increases the engine's displacement by enlarging the cylinder bore. This results in a larger combustion chamber, allowing for a greater volume of air and fuel mixture. This translates directly into increased horsepower and torque, delivering a noticeable boost in acceleration and top speed. However, it's crucial to remember that simply increasing the engine's size isn't the only factor influencing performance; careful consideration of other components is essential for optimal results.
Key Components of a Big Bore Kit:
- Cylinder and Piston: The core components. The cylinder is bored out to a larger diameter, and a new, larger piston is fitted to match. High-quality materials are paramount here to ensure durability and longevity.
- Head Gasket: Often thicker than the stock gasket to accommodate the larger cylinder. The correct thickness is critical to maintain proper compression.
- Wrist Pin and Rings: These components work in conjunction with the piston to create a tight seal within the cylinder. High-quality rings are essential for preventing blow-by and maintaining compression.
- Optional Upgrades: Many kits include optional upgrades like high-performance camshafts, improved carburetors, or performance exhaust systems. These further enhance performance gains but also increase the overall cost.
Choosing the Right Big Bore Kit for Your Yamaha Blaster 200
The market offers various big bore kits for the Yamaha Blaster 200, ranging in size and features. The size of the kit significantly impacts performance. Larger kits offer more substantial power gains but may also require additional modifications and put more stress on other engine components.
Factors to Consider When Choosing a Kit:
- Kit Size: Common sizes include 210cc, 225cc, and even larger displacements. Larger kits generally require more extensive modifications.
- Brand Reputation: Choose reputable brands known for quality and reliability. Read reviews and compare different brands before making a purchase.
- Budget: Big bore kits range in price, depending on the size and included components. Set a budget and stick to it.
- Your Riding Style: Consider your riding style and the type of terrain you typically ride on. A larger kit may be overkill for casual trail riding.
Installation and Maintenance
Installing a big bore kit is a complex process best left to experienced mechanics unless you possess significant mechanical aptitude and experience with engine rebuilding. Improper installation can lead to engine damage, so seeking professional help is highly recommended.
Post-Installation Considerations:
- Break-in Period: New pistons and cylinders require a proper break-in period to allow the components to seat correctly and prevent premature wear. Follow the manufacturer's recommendations carefully.
- Regular Maintenance: Increased engine stress necessitates more frequent maintenance, including oil changes, air filter cleaning, and carburetor adjustments.
Performance Gains and Considerations
A big bore kit will significantly enhance your Yamaha Blaster 200's performance, offering noticeably increased horsepower, torque, and top speed. However, it's important to be aware of the potential downsides:
- Increased Wear and Tear: The larger engine will place more stress on connecting rods, crankshaft, and other components. Regular maintenance is crucial.
- Fuel Consumption: Expect slightly higher fuel consumption due to the increased displacement.
- Potential for Damage: Improper installation or lack of maintenance can lead to significant engine damage.
Conclusion
A Yamaha Blaster 200 big bore kit can dramatically transform your ATV's performance, but it's a significant undertaking that requires careful consideration and potentially professional installation. By understanding the factors involved, choosing the right kit, and ensuring proper maintenance, you can unleash the full potential of your Blaster 200 and enjoy a thrilling ride. Remember to always prioritize safety and ride responsibly.
