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  3. MAXPEEDINGRODS 67CNFR

MAXPEEDINGRODS 67CNFR Cdi Box Spark Plug Ignition Module Big

fits model: Yfm350fw, 4x4, Bear. make: Yamaha. year: 1988.

67cnfr Maxpeedingrods Spark Plug Ignition Cdi Box Module For Yamaha Big Bear Yfm350fw 4x4 1988

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 67CNFR ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Custom Bundle: No ), ( Feature: Escp ), ( Fitment: For Yamaha Kodiak 400 Yfm400fw 4x4 1993-1995 ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part., California Prop 65 Warning., This Is Aftermarket Replcement Part ), ( Quantity: 1 Piece Ignition Cdi Box ), ( Reference Oe Number: For Yamaha Yfm350 Moto 4 Cdi Box ), ( Reference Oem Number: 1yw-85540-20-00 ), ( Surface Finish: Brand New ), ( Type: Ignition Cdi Box )

Review MAXPEEDINGRODS Spark Plug Ignition Cdi Box Module Yamaha Big fits BEAR YFM350FW 4X4 1988

The **Maxpeedingrods 67CNFR Spark Plug Ignition CDI Box Module** is a meticulously engineered, high-performance upgrade designed specifically for the **Yamaha Big Bear YFM-350FW 4x4 (1988)**, ensuring optimal ignition reliability, enhanced engine responsiveness, and extended component longevity. This premium replacement module replaces the stock CDI (Capacitor Discharge Ignition) box and ignition system components, delivering a more robust and efficient spark delivery system that significantly reduces misfires, improves throttle response, and minimizes electrical interference critical factors for off-road and rugged terrain performance. Crafted from high-grade, corrosion-resistant materials, the **67CNFR module** is built to withstand the harsh conditions of off-roading, including dust, moisture, and extreme temperatures, while maintaining precise timing and voltage output for consistent, high-energy spark generation. The upgraded ignition system features a **high-capacity spark plug (NGK or equivalent, compatible with the 67CNFR code)**, optimized for better combustion efficiency, reduced fouling, and improved fuel economy. Whether tackling rocky trails, deep mud, or steep climbs, this module ensures your Yamaha Big Bear operates at peak performance with minimal electrical wear, reducing the risk of sudden ignition failures that could leave you stranded. Ideal for enthusiasts seeking a reliable, long-lasting solution, the **Maxpeedingrods 67CNFR CDI Box Module** combines durability with performance, making it an essential upgrade for any serious off-roader looking to maximize the potential of their classic 1988 YFM-350FW.

### Pros and Cons of buying a Maxpeedingrods 67CN-FR Spark Plug Ignition CDI Box Module for a Yamaha Big Bear YFM350FW (1988) 4x4

#### **Pros:**

1. **Performance Enhancement** The CDI box and spark plug upgrade are designed to improve ignition timing and spark strength, which can lead to better throttle response, smoother power delivery, and increased horsepower. This is particularly beneficial for older engines that may have degraded ignition components over time.

2. **Reliability and Durability** Maxpeedingrods products are known for using high-quality materials and precise engineering. The upgraded CDI box and spark plug are likely to be more robust than stock components, reducing the risk of misfires, weak sparks, or premature failure.

3. **Compatibility** The 67CN-FR model is specifically designed for the Yamaha Big Bear YFM350FW (1988) and its variants, ensuring a proper fit without the need for extensive modifications. This reduces the risk of installation errors or compatibility issues.

4. **Ease of Installation** The kit is typically designed for straightforward installation, requiring minimal tools and technical skill. This makes it accessible for DIYers who may not have extensive mechanical experience.

5. **Cost-Effective Upgrade** Compared to a full engine rebuild or replacement, upgrading the ignition system is a relatively inexpensive way to restore or enhance performance. It can also extend the lifespan of the engine by preventing damage caused by weak or failing ignition components.

6. **Improved Fuel Efficiency (Potentially)** A more efficient ignition system can optimize combustion, which may lead to better fuel economy in some cases, though results vary depending on engine condition and riding habits.

7. **Aftermarket Support and Community** Maxpeedingrods is a well-regarded brand in the off-road and ATV performance community. If issues arise, there is often access to forums, tutorials, and customer support for troubleshooting.

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#### **Cons:**

1. **Potential for Overkill** If the engine is already in poor condition (e.g., worn pistons, valves, or carburetion issues), simply upgrading the ignition system may not yield significant performance gains. The engine s overall health will still limit performance improvements.

2. **Risk of Improper Installation** While the installation is generally straightforward, mistakes such as incorrect wiring, improper gap settings, or failure to ground components properly can lead to electrical issues, misfires, or even damage to the engine.

3. **Compatibility Concerns with Modifications** If the ATV has been previously modified (e.g., with a different carburetor, exhaust, or fuel system), the upgraded ignition components may not interact optimally with those changes. This could require additional tuning or adjustments.

4. **Limited Long-Term Guarantee** While Maxpeedingrods products are durable, no component is immune to wear over time. The CDI box and spark plugs may still require eventual replacement, especially if the engine is heavily used or operated under extreme conditions.

5. **Learning Curve for Tuning** Upgrading the ignition system may require adjustments to the carburetor or fuel mixture to avoid running too rich or lean. Without proper tuning, the engine could experience rough idling, hesitation, or reduced power.

6. **Cost of Additional Components** While the CDI box and spark plug are relatively inexpensive, you may need to purchase additional items such as new wires, a ground strap, or a timing light to ensure proper installation and tuning. These extras can add to the overall cost.

7. **Brand-Specific Reliance** If Maxpeedingrods discontinues the product or goes out of business, finding replacement parts or support could become difficult. It s wise to keep a backup or consider alternatives if the product is no longer available.

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### **Conclusion:**

The Maxpeedingrods 67CN-FR spark plug ignition CDI box module is a solid upgrade for a 1988 Yamaha Big Bear YFM350FW 4x4, particularly if the stock ignition system is worn or unreliable. It offers noticeable performance improvements in terms of power, reliability, and throttle response, making it a worthwhile investment for riders looking to restore or enhance their ATV s performance.

However, the upgrade is not a magic fix it works best when paired with a well-maintained engine. If the ATV has other underlying issues (e.g., carburetion problems, worn bearings, or exhaust restrictions), addressing those first will maximize the benefits of the ignition upgrade.

For most riders who want a cost-effective way to breathe new life into their Big Bear s engine, this kit is highly recommended. Just ensure proper installation, follow tuning guidelines, and consider additional maintenance to keep the engine running smoothly.

### **Recommendation:** **Buy the Maxpeedingrods 67CN-FR CDI box and spark plug upgrade if:**

- Your Yamaha Big Bear s stock ignition system is old or unreliable.

- You want to improve throttle response and power without a full engine rebuild.

- You re comfortable with basic installation and minor tuning adjustments.

- You plan to keep the ATV in good condition with regular maintenance.

**Avoid or proceed with caution if:**

- The engine has severe mechanical issues that aren t addressed alongside the ignition upgrade.

- You lack confidence in performing the installation correctly.

- You ve made extensive modifications that may conflict with the stock ignition system.

For best results, pair this upgrade with a carburetor tune-up, fresh fuel lines, and a clean air filter. If possible, consult with a local Yamaha specialist or ATV performance shop to ensure compatibility and proper setup.

Details:

PRODUCTS Spark Plug Ignition CDI Box Module For Yamaha Big Bear YFM350FW 4X4 1988. MaXpeedingrods has a longstanding commitment to the research of ECU, engine, gearbox and vehicle performance electronic calibration. We established cooperation's with EM tron, Mote, LINK, Cartel, Him, etc. MaXpeedingrods always follow the development concept that Success derives from devotion and happiness comes sharing to make contributes domestic overseas car tuning enthusiasts global racing culture by excellent products service.

Direct replacement. Easy starting and smooth driving. Direct fit for factory specifications. Solid construction.

CDI Ignition Box for Yamaha Big Bear Moto 4 YFM350FW 1YW-85540-20-00 1987 1988. Easy installation. For Yamaha Big Bear YFM350FW 4X4 1987. Hi-performance aftermarket parts; no instruction included.

specifications electricacompone:

  • for models: Yfm350fw, 4x4, Bear
  • for makes: Yamaha
  • for years: 1988
  • brand: Maxpeedingrods
  • mpn: 67cnfr
  • california prop 65 warning: California Prop 65 Warning
  • custom bundle: No
  • feature: Escp
  • fitment: For Yamaha Kodiak 400 Yfm400fw 4x4 1993-1995
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part., California Prop 65 Warning., This Is Aftermarket Replcement Part
  • quantity: 1 Piece Ignition Cdi Box
  • reference oe number: For Yamaha Yfm350 Moto 4 Cdi Box
  • reference oem number: 1yw-85540-20-00
  • surface finish: Brand New
  • type: Ignition Cdi Box

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  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days

seller electricacompone:

  • # reviews: 33643
  • rating: 99.3%
  • city: Dayton, New Jersey

general electricacompone:

  • condition: New
  • ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components

shipping electricacompone:

  • type: Fixed
  • cost: $0.00
  • transit: 3-7 Days
  • service: Standard
  • class: Standard

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offer electricacompone:

  • started: March 25, 2026
  • sold: 0
  • quantity: 2
  • availability: In Stock
  • best offers: True
  • options: Ship-to-home
for models: yfm350fw, 4x4, bear, for makes: yamaha, for years: 1988, california prop 65 warning: california prop 65 warning, custom bundle: no, feature: escp, fitment: for yamaha kodiak 400 yfm400fw 4x4 1993-1995, note: no instruction included, notice: this is aftermarket replcement part., california prop 65 warning., this is aftermarket replcement part, quantity: 1 piece ignition cdi box, reference oe number: for yamaha yfm350 moto 4 cdi box, reference oem number: 1yw-85540-20-00, surface finish: brand new, type: ignition cdi box,
category: atv parts > atv, side-by-side utv parts accessories > electrical ignition components, sku: 24200502854538772,
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