1. Antique, Vintage, Historic Motorcycle Parts For Sale
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  3. YAMAHA 5TA-82509-01-00

YAMAHA 5TA-82509-01-00 Cdi Wiring Harness 5TA-82509-02-00

fits model: 250f, Yz. make: Yamaha. year: 2004.

5ta-82509-02-00 Yamaha 5ta-82509-01-00 - 2004 Yz 250f Cdi Wiring Harness /

( Manufacturer Part Number: 5TA-82509-01-00 ), ( Part Type: Wiring Harness ), ( Compatible Year: 2005, 2004 ), ( Country Of Origin: Japan )

Review YAMAHA Cdi Wiring Harness fits 250F YZ 2004

The **Yamaha 5TA-82509-01-00 (and its variant, the 5TA-82509-02-00)** is a high-quality, OEM-specification **CDI (Capacitor Discharge Ignition) wiring harness** designed exclusively for the **2004 Yamaha YZ250F**, a model renowned for its agile handling, responsive throttle, and off-road prowess. This meticulously engineered harness serves as the critical electrical backbone of the bike s ignition system, ensuring precise timing, reliable spark generation, and seamless communication between the ignition coil, CDI module, and other essential components. Crafted from durable, high-grade materials, the harness features **tinned copper wiring** with robust, corrosion-resistant connectors, engineered to withstand the demanding conditions of off-road riding, including exposure to dust, moisture, and vibration. The wiring is neatly organized into a **compact, color-coded layout**, simplifying installation and troubleshooting while maintaining a clean, professional appearance under the bike s fairings. Whether replacing a worn-out or damaged original harness or upgrading for enhanced reliability, this Yamaha-specific part guarantees a **perfect fit** with no modifications required, preserving the factory-intended performance and longevity of the YZ250F s ignition system. Ideal for both professional mechanics and DIY enthusiasts, this harness is a testament to Yamaha s commitment to precision engineering, ensuring that every spark is delivered with the exact timing and power needed for optimal engine performance.

### **Pros and Cons of buying a Yamaha 5TA-82509-01-00 (2004 YZ250F CDI Wiring Harness) and 5TA-82509-02-00**

#### **Pros:**

1. **Direct Compatibility** Both harnesses are designed specifically for the 2004 Yamaha YZ250F, ensuring a proper fit without modification. This reduces the risk of electrical issues caused by mismatched wiring.

2. **Reliability** Yamaha s wiring harnesses are built to withstand the demands of off-road use, including vibrations, heat, and moisture. A genuine or high-quality aftermarket harness minimizes the risk of shorts or loose connections.

3. **Simplified Repairs** If your original harness is damaged (e.g., from a crash, wear, or electrical failure), replacing it with an OEM or equivalent part streamlines troubleshooting. Many electrical problems in dirt bikes stem from faulty wiring.

4. **CDI Functionality** The CDI (Capacitor Discharge Ignition) system relies heavily on clean wiring. A new harness ensures proper signal transmission between the CDI box, ignition coil, and other components, which can improve spark reliability and engine performance.

5. **Prevents Future Issues** If your current harness has frayed wires, corroded connectors, or poor soldering, replacing it proactively can avoid intermittent electrical failures, which are common in older bikes.

6. **Ease of Installation** These harnesses are designed for straightforward installation, requiring minimal tools and time. Most riders can swap them out in under an hour with basic mechanical skills.

7. **Cost-Effective for Long-Term Use** While the upfront cost may seem high, replacing a failing harness is far cheaper than repairing or replacing a damaged CDI box, ignition coil, or other electrical components caused by poor wiring.

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#### **Cons:**

1. **Cost** Authentic Yamaha harnesses (especially OEM) can be expensive, often ranging between **$80 $150** depending on the seller. Aftermarket equivalents may be slightly cheaper but could vary in quality.

2. **Availability** Finding the exact part (especially the 5TA-82509-01-00 or 02-00) may require checking multiple online marketplaces (eBay, Yamaha dealers, or specialty bike parts stores). Some sellers may not stock these specific models.

3. **Potential Counterfeit Parts** If purchasing from third-party sellers, there is a risk of receiving counterfeit or low-quality replicas. Always verify the seller s reputation and check for authenticity markings.

4. **Time-Consuming if DIY** While installation is manageable, inexperienced riders may struggle with routing wires correctly or securing connectors properly, leading to potential future issues.

5. **Mixed Reviews on Aftermarket Alternatives** Some aftermarket harnesses may not meet OEM standards, leading to premature wear or electrical issues. Researching brands (e.g., **Yamaha Genuine Parts, PowerSports Parts, or trusted aftermarket suppliers**) is essential.

6. **Additional Components May Be Needed** If the harness is part of a larger repair (e.g., replacing a CDI box or ignition coil), you may need to purchase those separately, increasing the total cost.

7. **Warranty Considerations** If the bike is under warranty, installing aftermarket parts (even if compatible) could void coverage. Always check Yamaha s warranty terms before proceeding.

---

### **Conclusion**

Buying the **Yamaha 5TA-82509-01-00 or 5TA-82509-02-00 wiring harness** for your 2004 YZ250F is a **practical and often necessary** investment if your current harness is failing or damaged. The benefits such as improved electrical reliability, easier diagnostics, and long-term performance outweigh the drawbacks for most riders. However, the cost and potential for counterfeit parts require careful consideration.

If your harness is **visibly damaged, corroded, or causing electrical issues**, replacing it is a **wise preventive measure**. If you re unsure about the condition, a **visual inspection** (checking for frayed wires, loose connectors, or burn marks) can help decide whether replacement is needed.

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### **Recommendation**

1. **Verify the Need** Before purchasing, confirm that your harness is indeed the issue. Test for proper spark (using a spark plug tester), check for loose connections, and inspect the wiring for damage.

2. **Choose the Right Part**

- **OEM (5TA-82509-01-00 or 02-00)** is the safest option if budget allows.

- **High-quality aftermarket alternatives** (e.g., from **PowerSports Parts, Yamaha Genuine, or reputable suppliers**) can be a cost-effective choice if thoroughly researched.

- Avoid generic or unbranded harnesses unless they come with strong reviews and warranties.

3. **Buy from Trusted Sources**

- **Yamaha Authorized Dealers** (for OEM parts).

- **Specialty dirt bike parts stores** (e.g., **DirtBikeParts.com, Cycle World, or local shops**).

- **eBay or Amazon** (only from sellers with high ratings and verified feedback).

4. **Install Properly**

- Follow Yamaha s wiring diagrams or a **step-by-step guide** (e.g., from **Motorcycle 74, Dirt Bike Repair, or YouTube tutorials**).

- Ensure all connectors are securely crimped and insulated.

- Test the bike after installation to confirm no new issues arise.

5. **Consider a Bundle** If replacing other components (e.g., CDI box, ignition coil), look for **complete repair kits** that include the harness for better value.

**Final Verdict:** **Worth the purchase** if your harness is failing, as it directly impacts your bike s electrical system and overall reliability. Prioritize quality over cost to avoid future headaches.

Details:

Thanks!, COMPATIBILITY: the following list if provided is all machines that share same part number as this item. If you want to return something because purchased it in error, changed your mind, didn't verify compatibility prior purchasing, found one for a lower price or some other reason that is not our fault. Comes As Pictured, PART NUMBER: 5TA-82509-01-00 / 5TA-82509-02- TAG 21315, FREE SHIPPING: is for the lower 48 states only.

part #: 5ta825090100 prices

  • $10.95-$32.35

specifications cyclevintagee:

  • for models: 250f, Yz
  • for makes: Yamaha
  • mpn: 5ta-82509-01-00
  • part type: Wiring Harness
  • compatible year: 2005, 2004
  • country of origin: Japan

seller cyclevintagee:

  • rating: 99.9%
  • # reviews: 5051
  • city: Hutchinson, Minnesota

returns cyclevintagee:

  • paid by: Buyer
  • time: 14 Days
  • policy: Returns Accepted

payments cyclevintagee:

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general cyclevintagee:

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

shipping cyclevintagee:

  • service: Standard
  • transit: 4-9 Days
  • class: Standard
  • type: Fixed
  • cost: $0.00

offer cyclevintagee:

  • sold: 0
  • quantity: 1
  • options: Ship-to-home
  • best offers: True
  • started: March 19, 2026
  • availability: In Stock
for models: 250f, yz, for makes: yamaha, part type: wiring harness, compatible year: 2005, 2004, country of origin: japan,
category: motorcycle parts > motorcycle scooter parts accessories, sku: 21252612610194633,
Yamaha 5TA-82509-01-00 Is Similar To:
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5 offers $10.95–$32.35 USD
  • Used. Offer #1 priced at $10.95 + $0.00 shipping estimate = $10.95* total. FREE SHIPPING
  • Used. Offer #2 priced at $25.00 + $12.00 shipping estimate = $37.00* total. In good working condition- no issues or broken clips. See pics for detailed condition- in good used shape - came off a 2003 YZ450F please - check fittament prior to purchasing.+$12.00 shipping
  • Used. Offer #3 priced at $32.35 + $0.00 shipping estimate = $32.35* total. Ready to install! Removed From: 2003 Yamaha YZ450F with miles.FREE SHIPPING
  • Used. Offer #4 priced at $25.00 + $19.96 shipping estimate = $44.96* total. 2003 yz250f wire harness.+$19.96 shipping
  • Used. Offer #5 priced at $20.00 + $0.00 shipping estimate = $20.00* total. 05 Yamaha YZ 250 F (FOUR STROKE). 05 Yamaha YZ 250 F.FREE SHIPPING

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