1. Antique, Vintage, Historic Motorcycle Parts For Sale
  2. sku: 22148891755679983
  3. KAWASAKI 12005-1061

KAWASAKI 12005-1061 Rh Right Exhaust Power Valve Cylinder

fits model: Kx250, Kx, 250. make: Kawasaki. year: 1985.

12005-1061 Kawasaki Rh Right Exhaust Power Valve B 1985 Kx250 Kx 250 Cylinder Oem

( Manufacturer Part Number: 12005-1061 ), ( Part Type: Valve Exhaust Cylinder ), ( Vintage Part: Yes ), ( Country Of Origin: Japan ), ( Location: Boring Bar, Mailer Kawasaki 1985 Kx250 B )

Review KAWASAKI Rh Right Exhaust Power Valve Cylinder Oem fits KX250 KX 250 1985

The **Kawasaki 1985 KX250 1061-RH Right Exhaust Power Valve** is a precision-engineered component designed specifically for the iconic Kawasaki KX250 dirt bike, a model renowned for its balance of power, agility, and reliability in off-road racing. This exhaust power valve plays a critical role in optimizing the bike s performance by regulating the flow of exhaust gases, thereby enhancing engine efficiency, throttle response, and overall power delivery. Crafted from high-grade materials, this valve is built to withstand the extreme conditions of high-speed racing and heavy-duty trail riding, ensuring durability and longevity even under the most demanding circumstances. The valve s design incorporates a tight seal and smooth operation, minimizing backpressure while maximizing the expulsion of exhaust gases, which directly contributes to improved horsepower and torque. Whether you're a competitive motocross rider pushing the limits on the track or an enthusiast seeking to fine-tune their KX250 for better handling and acceleration, this valve is an essential upgrade for those looking to extract every ounce of performance from their machine. Its compatibility with the 1985 model year ensures a perfect fit, allowing for easy installation without the need for modifications, and its robust construction guarantees it will maintain its functionality over countless hours of use. For riders who demand precision and performance, this Kawasaki exhaust power valve is a must-have component to elevate the KX250 s already formidable capabilities.

**Pros and Cons of Buying a Kawasaki 12005-1061 RH Right Exhaust Power Valve for a 1985 KX250**

### **Pros:**

1. **Performance Improvement:** The power valve is designed to enhance airflow through the exhaust system, which can improve engine efficiency, throttle response, and overall power output. For a 1985 KX250, this modification can make the bike feel more responsive, especially in mid-range RPMs.

2. **Compatibility:** Kawasaki s OEM power valves are engineered to fit their own engines precisely, reducing the risk of leaks or improper sealing that can occur with aftermarket parts. This ensures a better fit and potentially longer lifespan compared to non-branded alternatives.

3. **Durability:** Kawasaki parts are generally built to last, especially if the valve is new or in excellent condition. This reduces the likelihood of premature failure, which can be a concern with cheaper or counterfeit parts.

4. **Ease of Installation:** Since it s an OEM or high-quality replacement part, installation should be straightforward if you have basic mechanical skills or access to a mechanic. The design is optimized for the KX250 s exhaust system, making it easier to install correctly.

5. **Potential for Increased Reliability:** If the original power valve was worn or damaged, replacing it with a new one can restore proper exhaust function, preventing issues like backpressure that could strain the engine or muffler.

6. **Resale Value:** If you plan to sell the bike later, having an OEM or genuine replacement part can make the bike more appealing to buyers who prefer original or high-quality components.

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### **Cons:**

1. **Cost:** Kawasaki OEM parts can be more expensive than aftermarket alternatives. While this part may not be extremely costly, it still represents an investment, especially if you re on a tight budget for modifications.

2. **Limited Power Gain:** The power valve s effect on performance is modest compared to other modifications like carburetor tuning, exhaust headers, or engine upgrades. If you re looking for dramatic power increases, this part alone may not deliver the results you seek.

3. **Maintenance Considerations:** If the rest of the exhaust system (e.g., muffler, pipes) is worn or outdated, replacing just the power valve won t fully optimize performance. You may need to address other components for noticeable improvements.

4. **Potential for Counterfeit Parts:** If purchasing from an unknown seller, there s a risk of receiving a fake or low-quality replica. Always verify the authenticity of the part, especially if buying online from third-party sellers.

5. **Installation Risks:** If not installed correctly, the power valve could leak or fail to function properly. This requires careful attention to gasket placement, torque specifications, and ensuring the exhaust system is securely connected.

6. **Legal Restrictions:** In some regions, modifying the exhaust system even with OEM parts may require compliance with emissions regulations. Check local laws to avoid fines or registration issues.

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### **Conclusion:**

The Kawasaki 12005-1061 RH right exhaust power valve is a practical and reliable upgrade for a 1985 KX250, particularly if you re experiencing exhaust-related performance issues or want to enhance airflow subtly. It s a relatively low-risk modification that can improve throttle response and engine efficiency without requiring major changes. However, the gains are incremental, and the part may not justify the cost if you re seeking significant power increases.

If your primary goal is to restore or maintain the bike s original performance with minimal hassle, this is a solid choice. If you re aiming for aggressive tuning, consider pairing this with other modifications (e.g., headers, carburetor adjustments, or a high-flow muffler) for better results.

---

### **Recommendation:**

- **Buy it if:** You want a straightforward, high-quality upgrade to improve exhaust flow and mid-range power, and you re satisfied with modest performance gains. It s also a good option if the original valve is worn or damaged.

- **Skip it if:** You re on a tight budget and prioritize more impactful modifications (e.g., headers, engine rebuilds). Alternatively, if you re unsure about installation, consult a mechanic to ensure proper fitment.

- **Where to buy:** Purchase from a reputable dealer, Kawasaki-approved parts distributor, or a trusted online retailer with return policies to avoid counterfeit parts. Verify the part number and condition before buying.

- **Installation tip:** If you re not experienced with exhaust work, have a mechanic install it to avoid leaks or improper sealing. Ensure all gaskets and clamps are secure.

For the 1985 KX250, this is a worthwhile upgrade for those who want to fine-tune their bike s performance without drastic changes. Pair it with other compatible mods (like a high-performance air filter or carburetor) for cumulative benefits.

Details:

Comes as shown with parts. We answer all inquiries. See fitment before purchasing. Open communication.

Item: RH Right Exhaust Power Valve. Needs cleaning.

part #: 120051061 prices

  • $51.33-$150.00

specifications cyclevintagee:

  • for models: Kx250, Kx, 250
  • for makes: Kawasaki
  • mpn: 12005-1061
  • part type: Valve Exhaust Cylinder
  • vintage part: Yes
  • country of origin: Japan
  • location: Boring Bar, Mailer Kawasaki 1985 Kx250 B

offer cyclevintagee:

  • best offers: True
  • options: Ship-to-home
  • sold: 0
  • started: May 4, 2026
  • quantity: 1
  • availability: In Stock

returns cyclevintagee:

  • paid by: Seller
  • time: 60 Days
  • policy: Returns Accepted

general cyclevintagee:

  • condition: Used
  • Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

payments cyclevintagee:

  • wallet: Google-pay
  • credit card: Visa
  • other

seller cyclevintagee:

  • rating: 99.9%
  • # reviews: 58890
  • city: Spanish Fork, Utah

shipping cyclevintagee:

  • cost: $9.35
  • service: USPS Ground Advantage, USPS Priority Mail
  • transit: 3-8 Days
  • carrier: USPS
  • type: Calculated
  • class: Standard, Expedited
for models: kx250, kx, 250, for makes: kawasaki, part type: valve exhaust cylinder, vintage part: yes, country of origin: japan, location: boring bar, mailer kawasaki 1985 kx250 b,
category: motorcycle parts > motorcycle scooter parts accessories, sku: 22148891755679983,
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5 offers $51.33–$150.00 USD
  • New other (see details). Offer #1 priced at $51.33 + $8.75 shipping estimate = $60.08* total. Note: Minor Wear On Exhaust Valve. New Other Kawasaki RH Exhaust Valve.+$8.75 shipping
  • Used. Offer #2 priced at $125.00 + $9.35 shipping estimate = $134.35* total. Item: RH Right Exhaust Power Valve.+$9.35 shipping
  • Used. Offer #3 priced at $150.00 + $9.35 shipping estimate = $159.35* total. +$9.35 shipping
  • New. Offer #4 priced at $85.00 + $11.35 shipping estimate = $96.35* total. THIS PART COULD HAVE THESE CONDITIONS & BLEMISHES. Fits Models : 1985 Kawasaki KX250-D1'.+$11.35 shipping
  • Used. Offer #5 priced at $150.00 + $9.00 shipping estimate = $159.00* total. 1980 A 1981 B 1982 C 1983 D 1984 E 1985 F.+$9.00 shipping

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