YAMAHA 2X5-13610-00-00 Reed Cage Valve

( Manufacturer Part Number: 2X5-13610-00-00 ), ( Type: Reed Cage Reeds )

Review YAMAHA It Reed Cage Valve fits YZ 250 400 425 1979–1982

The **Yamaha 2x5-13610-00-00 reed cage valve** is a meticulously engineered component designed exclusively for Yamaha 250cc, 400cc, and 425cc two-stroke outboard motors produced between **1979 and 1982**, including models like the YZ250, YZ400, and YZ425. This valve assembly is a critical part of the engine s reed valve system, responsible for regulating the intake of air-fuel mixture into the combustion chamber while preventing backflow during the compression and power strokes. Crafted from high-quality materials, the **2x5-13610-00-00 reed cage valve** features a robust **aluminum cage** that securely holds the reed valves in place, ensuring optimal sealing and durability under high-performance conditions. The precision-machined design minimizes friction and wear, allowing for smooth operation even after extensive use, which is particularly beneficial for enthusiasts who modify their engines for increased horsepower or reliability. Whether restoring a classic Yamaha outboard to factory specifications or upgrading an older model for improved performance, this OEM replacement valve assembly delivers the same level of precision and performance as the original, ensuring a seamless fit and reliable function. Its compatibility with a range of Yamaha two-strokes from the late 1970s and early 1980s makes it an essential part for collectors, mechanics, and performance tuners looking to maintain or enhance the efficiency of these iconic engines.

### Pros and Cons of Buying a Yamaha 2x5-13610-00-00 (1979 1982 YZ 250/400/425) Reed Cage Valve

1. **Classic Yamaha Reliability** Yamaha s engines from this era were known for durability and straightforward mechanics, making them easier to maintain than some modern counterparts. The 2x5 series (used in the YZ 250, 400, and 425) was a robust design with a reputation for longevity when properly cared for.

2. **Proven Performance** The YZ 400/425 in particular was a favorite among off-road riders for its balance of power and torque, especially in the early 1980s. The reed cage valve system (a precursor to modern reed valves) was effective for its time, offering good airflow and responsiveness for motocross and trail riding.

3. **Parts Availability** As a classic Yamaha model, replacement parts (cylinders, pistons, valves, etc.) are still relatively accessible, though not as abundant as for newer bikes. The 2x5 engine is a common rebuild candidate, so finding used or aftermarket components is easier than for rare or discontinued designs.

4. **Modding Potential** The YZ 400/425 (and to a lesser extent the 250) has a strong aftermarket presence, with options for upgrades like bigger carbs, ported cylinders, and performance camshafts. The reed cage valve can be replaced with modern reed valves or even a piston-port setup for improved airflow.

5. **Nostalgia and Collectibility** For enthusiasts who appreciate vintage machinery, these bikes hold sentimental value. The YZ 400/425, in particular, is a sought-after classic, especially in well-preserved condition. Some collectors and restorers seek out these models for their historical significance.

6. **Lower Cost of Ownership (Compared to Modern Bikes)** While not cheap, the initial purchase price and maintenance costs are often lower than those of modern motocross bikes. Labor is typically less expensive, and parts (when available) are cheaper than OEM components for newer machines.

7. **Simpler Technology** The lack of complex electronics (like modern ECUs, traction control, or advanced suspension systems) means fewer things can go wrong. This makes the bike easier to diagnose and repair without specialized tools.

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1. **Age-Related Wear and Tear** The reed cage valve system, while durable, is prone to wear over time. The reeds themselves can degrade, leading to loss of compression or poor performance. The valve springs and guides may also need attention, and the entire assembly can be finicky to adjust properly.

2. **Maintenance Intensity** Unlike modern bikes with sealed components, the YZ 2x5 engine requires regular valve adjustments, reed inspections, and potential replacements. The reed cage valve is more labor-intensive to service than a modern piston-port or desmodromic setup.

3. **Fuel and Emissions Concerns** These bikes were not designed for modern fuel standards. They run best on high-test gasoline (often 100 octane) and may struggle with modern pump gas, which can cause detonation or poor performance. Additionally, they lack catalytic converters or emissions controls, which could be an issue if ridden in areas with strict environmental regulations.

4. **Suspension and Drivetrain Limitations** The suspension on these bikes (especially the YZ 400/425) is basic by today s standards. The shocks are not adjustable, and the fork design lacks the damping and travel of modern motocross forks. The chain and sprocket setup is also less efficient than modern drivetrains, leading to more wear and potential slippage.

5. **Rarity of Complete Bikes** While the engine is common, finding a fully intact YZ 400/425 (or even a 250) in good condition can be challenging. Many were stripped for parts decades ago, and the remaining bikes may require extensive restoration work.

6. **Resale Value Depends on Condition** Unlike some classic bikes that appreciate over time, the YZ 2x5 models hold value only if well-maintained. A neglected example will depreciate quickly, while a restored or lightly used bike may retain some collector appeal.

7. **Modern Safety and Comfort Trade-offs** The ergonomics, braking systems, and overall rider comfort are not as advanced as modern bikes. The brakes are basic (often single-disc or drum), and the frame geometry is less optimized for aggressive riding styles.

8. **Limited Aftermarket Support for Some Components** While the engine and frame have aftermarket parts, other components like modern tires, brakes, or suspension upgrades may require custom fabrication or adaptation, increasing costs.

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Buying a Yamaha 2x5-13610-00-00 (1979 1982 YZ 250/400/425) with a reed cage valve is a decision that balances nostalgia, reliability, and modding potential against the challenges of maintenance and age-related limitations. These bikes are best suited for riders who:

- Enjoy the thrill of riding a classic machine.

- Are willing to invest time in maintenance and occasional rebuilds.

- Seek a project bike or a daily rider with a focus on simplicity and performance upgrades.

- Appreciate the historical significance of the YZ 400/425, which remains one of the most iconic off-road bikes of its era.

For riders who prioritize modern convenience, advanced technology, or minimal maintenance, a newer motocross bike would likely be a better choice. However, for those who value the character of vintage machinery and aren t deterred by the occasional mechanical challenge, the YZ 2x5 series offers a rewarding riding experience.

1. **Inspect the reed cage valve** Ensure the reeds are intact, springs are strong, and the entire assembly is clean and properly adjusted. A rebuild or replacement may be necessary.

2. **Check the engine condition** Look for signs of wear on the cylinder, piston, and crankshaft. A compression test is highly recommended.

3. **Assess the frame and suspension** Ensure there are no cracks in the frame, and the suspension components (shocks, forks) are in good working order.

4. **Test the bike thoroughly** Ride it to confirm there are no leaks, unusual noises, or handling issues.

5. **Budget for restoration** Be prepared to spend money on parts and labor, especially if the bike is not in perfect condition.

For the best value, consider a **YZ 400 or 425** over the 250, as they are more common, have better performance, and hold more collector interest. If you re looking for a project, a bike in "runner" condition (works but needs work) can be a great entry point. If you want a ready-to-ride classic, seek out a bike that has already been restored or maintained by a reputable mechanic.

Ultimately, the YZ 2x5 series is a fantastic choice for riders who appreciate the spirit of motocross history and aren t afraid to put in the effort to keep their bike running smoothly.

Details:

1979- 1982 Yamaha YZ 250 400 IT 425 Reed Cage Valve 2X5-13610-00-00.

part #: 2x5136100000 prices

• $29.00-$59.99

specifications intakefuelmotorcycle:

• for models: Yz, 250, 400, 425
• for makes: Yamaha
• for years: 1979-1982
• mpn: 2x5-13610-00-00
• type: Reed Cage Reeds

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• time: 30 Days
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• city: Point Roberts, Washington
• rating: 94.1%
• # reviews: 2585

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general intakefuelmotorcycle:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery
• condition: Used

offer intakefuelmotorcycle:

• started: May 3, 2026
• best offers: True
• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 2

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