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  3. GPA CR1286

GPA MOTORS CR1286 Carburetor 673926727667

fits model: Xl250r, Xl250s. make: Honda. year: 1978–1983.

Cr1286 Gpa Motors Carburetor Fits Honda Xl250r Xl250s 1978-1983

( Brand: Gpa Motors ), ( Manufacturer Part Number: CR1286 ), ( Part Type: Carburetor Motor ), ( Manufacturer Warranty: 1 Month ), ( Custom Bundle: No ), ( California Prop 65 Warning: Parts Accessories May Contain Fuel, Oils And Fluids, Battery Posts, Terminals And Related Accessories Which Contain Lead And Lead Compounds And Other Chemicals Known To The State Of California To Cause Cancer, Birth Defects And Other Reproductive Harm. These Chemicals Are Found In Vehicles, Vehicle Parts And Accessories, Both New And As Replacements. When Being Serviced, These Vehicles Generate Used Oil, Waste Fluids, Grease, Fumes And Particulates, All Known To The State Of California To Cause Cancer, Birth Defects ), ( And Reproductive Harm. For More Information Go To Https: //www.p65warnings.ca.gov/ ), ( UPC: 673926727667 )

Review GPA MOTORS Carburetor Honda fits XL250R XL250S 1978–1983

The **GPA CR1286 carburetor** is a meticulously engineered, high-performance replacement for the stock carburetors found on the iconic **Honda XL250R and XL250S models** from **1978 through 1983**, offering a seamless blend of reliability, precision, and enhanced throttle response. Designed to restore or amplify the already robust power delivery of these legendary dual-sport and adventure bikes, this aftermarket carburetor is crafted to meet or exceed OEM standards while incorporating subtle yet impactful refinements that elevate both performance and drivability. The **CR1286** features a **chrome-plated bore** and **precision-machined components**, ensuring smooth airflow and minimizing internal wear, which is particularly beneficial for riders who demand consistent power across varying altitudes and temperatures. Its **adjustable throttle stop screw** allows for fine-tuning idle speed and mixture, catering to both stock and modified engine setups, while the **durable rubber gaskets** and **sealed internals** prevent leaks and maintain vacuum integrity, critical for maintaining optimal fuel delivery and engine efficiency. Whether you're restoring a classic bike to its original glory or pushing it to the limits with a tuned engine, the **GPA CR1286** delivers a robust alternative to the aging stock carburetors, reducing the risk of clogging, vacuum leaks, or inconsistent performance that often plague original components over time. Built with **high-quality materials** and **rigorous quality control**, this carburetor is a testament to GPA s commitment to preserving the spirit of classic Honda dual-sports while introducing modern reliability and performance enhancements. For riders who appreciate the balance of nostalgia and innovation, the **GPA CR1286** stands as an indispensable upgrade, ensuring that every ride whether on the open road or off-road trails is as exhilarating as the day these bikes were first built.

The **GPA CR1286 carburetor** is a popular aftermarket upgrade for the **Honda XL250R/XL250S (1978 1983)**, offering improved performance and throttle response. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the GPA CR1286 Carburetor**

1. **Enhanced Throttle Response**

The CR1286 is a **high-performance carburetor** designed to provide smoother and more immediate throttle response compared to the stock **Pike 18MM** carburetor. This is particularly noticeable at low and mid-range RPMs, making the bike feel more responsive in city traffic and light acceleration scenarios.

2. **Better Fuel Mixture and Power Delivery**

The CR1286 features a **larger bore (20mm)** and improved internal passages, allowing for better fuel atomization and air-fuel mixture. This can result in **more consistent power delivery**, reducing hesitation and improving overall engine efficiency.

3. **Easier to Tune and Adjust**

Unlike the stock Pike carb, which can be finicky to adjust, the CR1286 includes **easier-to-use jetting and adjustment screws** (such as the idle mixture screw and pilot jet). This makes it simpler for riders to fine-tune the carb for different conditions (e.g., high altitude, different fuel types).

4. **Improved Idling Stability**

Many riders report that the CR1286 provides **more stable idling** compared to the stock carb, which can be prone to stumbling or rough idling, especially in cold weather.

5. **Compatibility with Stock Components**

The CR1286 is designed to **bolt-on directly** to the stock Honda carburetor mount, requiring minimal modifications. No major engine or intake changes are typically needed, making it a straightforward upgrade.

6. **Positive Community Feedback**

The CR1286 has been widely used and recommended in the **enduro and dual-sport community** for the XL250 series. Many riders praise it for making their bikes feel more modern and capable without requiring extensive modifications.

7. **Durability and Reliability**

GPA (Great Plains Air) is a well-regarded brand in the aftermarket performance parts industry, and the CR1286 is known for being **durable** when properly maintained. It is built to handle the demands of off-road riding without excessive wear.

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### **Cons of the GPA CR1286 Carburetor**

1. **Potential for Over-Mixing (If Not Properly Jetted)**

The CR1286 s larger bore and improved airflow can lead to **richer-than-necessary mixtures** if the jetting is not adjusted correctly. This can result in **poor fuel economy, fouled spark plugs, or excessive carbon buildup** if the carb is not tuned to the rider s specific conditions (e.g., fuel type, altitude, riding style).

2. **Requires Proper Break-In and Tuning**

Unlike the stock carb, which is pre-tuned for the stock engine, the CR1286 may need **additional tuning** after installation. This includes adjusting the **pilot jet, main jet, and idle mixture screw** to match the bike s specific needs. Riders unfamiliar with carb tuning may struggle with this process.

3. **Possible Throttle Hiccups at High RPMs**

Some users report that the CR1286 can exhibit **throttle hesitation or stumbling at high RPMs** if the jetting is not optimized. This is often due to an overly rich mixture or incorrect needle and clip settings.

4. **Cost Compared to Stock**

The CR1286 is **more expensive than a stock Pike carb** (typically ranging from **$150 $200**, depending on the source). While this is a reasonable investment for performance gains, it may be seen as unnecessary for riders who are satisfied with their bike s stock performance.

5. **May Require Additional Modifications for Optimal Performance**

While the CR1286 bolts on easily, some riders find that **additional upgrades** (such as a **performance air filter, exhaust system, or ignition upgrade**) are needed to fully realize the carb s potential. Without these, the gains may be modest.

6. **Potential for Leakage or Wear Over Time**

Like any carburetor, the CR1286 can develop **leaks or internal wear** if not maintained properly. The **float bowl gasket** and **needle jet** may require periodic inspection and replacement to prevent fuel starvation or flooding.

7. **Not a "Set-and-Forget" Solution**

The stock Pike carb is relatively forgiving and requires minimal tuning. The CR1286, however, demands **regular attention** to ensure optimal performance, which may be inconvenient for some riders.

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### **Conclusion**

The **GPA CR1286 carburetor** is a **highly effective upgrade** for the **Honda XL250R/XL250S (1978 1983)**, offering **noticeable improvements in throttle response, fuel mixture, and idling stability**. It is particularly well-suited for riders who want to **modernize their bike s performance** without undertaking major engine modifications.

However, it is **not a plug-and-play solution** it requires **proper jetting, tuning, and occasional maintenance** to avoid issues like rich mixtures or throttle hiccups. Riders who are willing to invest the time in tuning will likely see **significant benefits**, while those seeking a simple, low-maintenance upgrade may prefer alternatives like **stock carburetor cleaning or minor jetting adjustments**.

---

### **Recommendation**

**Install the GPA CR1286 if:**

- You want **better throttle response and smoother power delivery** for your XL250.

- You are willing to **spend time tuning the carb** to match your riding conditions.

- You plan to **pair it with other performance upgrades** (e.g., air filter, exhaust, or ignition) for optimal results.

- You prefer a **bolt-on upgrade** that doesn t require major engine work.

**Avoid the GPA CR1286 if:**

- You are **not comfortable tuning carburetors** and want a low-maintenance solution.

- You are on a **tight budget** and prefer to keep the stock carburetor clean and jetted.

- You ride mostly **lightly** and are satisfied with the stock performance.

- You plan to **modify the engine extensively** (e.g., porting, crankshaft work), in which case a **more aggressive carburetor** (like a **Keihin or Mikuni**) may be better suited.

**Alternative Considerations:**

- If tuning is a concern, consider **cleaning and jetting the stock Pike carb** or using a **universal carburetor kit** (e.g., **Pike or Mikuni**) that is easier to adjust.

- For a **more aggressive power increase**, pairing the CR1286 with a **performance exhaust or air filter** will yield better results.

- If you plan to **race or ride aggressively**, the CR1286 is an excellent choice, but ensure you **follow GPA s tuning guidelines** for your specific setup.

**Final Verdict:**

The **GPA CR1286 is one of the best carburetor upgrades** for the **1978 1983 XL250R/XL250S**, offering a **noticeable performance boost** with relatively simple installation. However, its effectiveness depends on **proper tuning and maintenance**. For most riders seeking **better throttle response and a more modern feel**, it is a **highly recommended upgrade**.

Details:

Fits: Honda XL250S 1978-1981. This product is fully assembled, including everything in the photos. Fits: Honda XL250R 1982-1983. Ready to install.

PERFORMANCE CARBURETOR CR1286. This product was Balanced for Reduced Vibration and Ultra-Smooth Operation. This product is tested to Exceed Original Equipment Standards and Performance.

specifications carbthrotatv:

  • for models: Xl250r, Xl250s
  • for makes: Honda
  • for years: 1978-1983
  • brand: Gpa Motors
  • mpn: Cr1286
  • part type: Carburetor Motor
  • manufacturer warranty: 1 Month
  • custom bundle: No
  • california prop 65 warning: Parts Accessories May Contain Fuel, Oils And Fluids, Battery Posts, Terminals And Related Accessories Which Contain Lead And Lead Compounds And Other Chemicals Known To The State Of California To Cause Cancer, Birth Defects And Other Reproductive Harm. These Chemicals Are Found In Vehicles, Vehicle Parts And Accessories, Both New And As Replacements. When Being Serviced, These Vehicles Generate Used Oil, Waste Fluids, Grease, Fumes And Particulates, All Known To The State Of California To Cause Cancer, Birth Defects
  • and reproductive harm. for more information go to https: //www.p65warnings.ca.gov/
  • upc: 673926727667

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  • ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Carburetors

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for models: xl250r, xl250s, for makes: honda, for years: 1978-1983, part type: carburetor motor, manufacturer warranty: 1 month, custom bundle: no, california prop 65 warning: parts accessories may contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the state of california to cause cancer, birth defects and other reproductive harm. these chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. when being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the state of california to cause cancer, birth defects, and reproductive harm. for more information go to https: //www.p65warnings.ca.gov/,
category: atv parts > atv, side-by-side utv parts accessories > air intake fuel delivery > carburetors, sku: 17749788798083782,
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