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  3. BOYESEN MN/D3MX

BOYESEN MN-D3MX Power Fuel Air Reed Xe MN/D3MX

fits model: It175. make: Yamaha. year: 1980–1983.

D3mx Boyesen Mn/d3mx Power Reeds For 1980-1983 Yamaha It175 - Fuel And Air Reed Xe

( Brand: Boyesen ), ( Manufacturer Part Number: MN/D3MX ), ( Compatible Year: 1983 1982 1981 1980 ), ( Bundle Description: 1 Pc Genuine Boyesen Power Reeds ), ( Type: Power Reeds ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review BOYESEN Mn/d3mx Power Reeds Yamaha Fuel And Air Reed Xe fits IT175 1980–1983

The Boyesen MN/D3MX Power Reeds are a meticulously engineered upgrade designed to transform the performance of the 1980-1983 Yamaha IT175 Fuel Air Reed XE, delivering a striking balance between power, throttle response, and smoothness. Crafted from high-quality materials, these reeds are precision-machined to enhance airflow while maintaining structural integrity, ensuring they can withstand the demands of aggressive riding without compromising durability. The D3MX series is renowned for its aggressive yet refined tuning, which sharpens the throttle response and unlocks additional horsepower, making the IT175 feel more responsive and spirited at both low and high RPMs. Unlike stock reeds, which may restrict airflow and limit the engine s potential, the MN/D3MX reeds introduce a more aggressive profile that optimizes combustion efficiency, resulting in a noticeable surge in acceleration and a more engaging ride. These reeds are particularly well-suited for riders seeking a sportier, more aggressive character from their IT175, as they eliminate the sluggishness often associated with stock setups while preserving the engine s reliability. Whether cruising on the highway or navigating tight corners, the Boyesen MN/D3MX reeds ensure a more dynamic and exhilarating experience, making them an ideal choice for enthusiasts looking to push their Yamaha s limits without extensive modifications. Installation is straightforward, requiring only basic tools, and the reeds are designed to fit seamlessly into the existing reed assembly, ensuring a hassle-free upgrade that delivers immediate, tangible results. For riders who appreciate a blend of power and precision, the Boyesen MN/D3MX Power Reeds are a standout solution, offering a direct path to unlocking the full potential of the IT175 Fuel Air Reed XE.

### Pros and Cons of Buying Boyesen MN/D3MX Power Reeds for a 1980-1983 Yamaha IT175 Fuel-Air Reed (XE)

#### **Pros:**

1. **Performance Improvement** Boyesen power reeds are designed to enhance throttle response, power delivery, and overall engine performance. For a fuel-injected Yamaha IT175, these reeds can help restore or improve the stock performance, especially if the original reeds have degraded over time.

2. **Durability and Strength** Boyesen reeds are made from high-quality materials, including stainless steel and titanium options, which are more resistant to wear, corrosion, and heat compared to stock reeds. This can extend the lifespan of your fuel-air unit and improve reliability.

3. **Compatibility with Modifications** If you ve made other performance upgrades (e.g., exhaust, carb tuning, or ECU remapping), Boyesen reeds can complement those changes by allowing better airflow and fuel mixture control.

4. **Easier Installation** Boyesen offers pre-packaged kits that include everything needed for installation, including gaskets, seals, and sometimes even a new fuel-air unit if the original is worn. This simplifies the process compared to sourcing individual parts.

5. **Aftermarket Support and Reputation** Boyesen is a well-known brand in the performance tuning community, with a strong reputation for quality. Their reeds are widely used and tested on similar engines, reducing the risk of compatibility issues.

6. **Potential for Better Fuel Efficiency** In some cases, optimized reeds can improve combustion efficiency, leading to better fuel economy, though this depends on how the engine is tuned overall.

7. **Customization Options** Boyesen offers different reed sizes and materials (e.g., stainless steel, titanium) to match your desired power level and riding style. You can choose between mild upgrades (MN series) or more aggressive options (D3MX) depending on your needs.

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#### **Cons:**

1. **Cost** Boyesen power reeds are more expensive than OEM or generic aftermarket reeds. A full kit (including a new fuel-air unit) can cost significantly more than just replacing the reeds alone, which may not be justified for mild use.

2. **Potential for Overkill** If your IT175 is mostly used for casual riding or light commuting, the performance gains from Boyesen reeds may not be noticeable enough to warrant the expense. Stock reeds or a slightly upgraded aftermarket set might suffice.

3. **Installation Complexity** While Boyesen kits are designed to be user-friendly, installing them still requires careful handling of the fuel-air unit, reed plates, and seals. Improper installation can lead to leaks, poor performance, or even damage to the engine. If you re not comfortable with mechanical work, professional installation may be necessary.

4. **ECU or Tuning Requirements** Some power reeds may require adjustments to the engine s fuel mapping or ignition timing to avoid rich/lean conditions or detonation. If you re not running a tuner (e.g., Power Commander, Yamaha EFI tuner), you might need to rely on stock settings, which could limit the benefits.

5. **Wear on Other Components** Aggressive reeds can increase stress on the fuel pump, injectors, and exhaust system. If these components are already worn or not upgraded, they may fail prematurely, leading to additional costs.

6. **Potential for Voiding Warranty** If your bike is still under warranty, modifying the fuel-air reeds could void coverage, especially if the manufacturer considers it an "aftermarket modification."

7. **Mixed Results on Older Models** While Boyesen reeds work well on many modern and older bikes, the 1980-1983 IT175 s fuel-injection system is relatively basic compared to later models. Some riders report that the gains are modest unless paired with other upgrades (e.g., exhaust, ECU flash).

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### **Conclusion:**

Boyesen MN/D3MX power reeds are a solid choice for Yamaha IT175 owners looking to enhance performance, especially if they ve already invested in other modifications or plan to tune the ECU. The reeds offer noticeable improvements in throttle response and power, along with durability benefits, but they come at a higher cost and require careful installation. For riders who prioritize reliability and want a noticeable upgrade without extreme modifications, Boyesen is a reputable option.

However, if your primary use is casual riding and you re on a budget, a simpler aftermarket reed set or even high-quality OEM replacements might be sufficient. The decision ultimately depends on your riding style, budget, and how aggressively you plan to modify the bike.

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### **Recommendation:** - **If you want a noticeable performance boost and are comfortable with installation/tuning:**

Go for the **Boyesen MN series** (milder upgrade) or **D3MX** (more aggressive) depending on your goals. Pair it with a basic ECU tune (if possible) to optimize fuel delivery.

- **If you re on a budget or ride lightly:**

Consider a **high-quality aftermarket reed set** (e.g., from brands like **Yamaha Performance Parts** or **K&N**) that are more affordable and still offer improvements without overhauling the system.

- **If you re unsure:**

Start with a **diagnostic check** of your current fuel-air unit and reeds. If they re worn or clogged, replacing them with stock or mild aftermarket reeds may be enough to restore stock performance before investing in Boyesen.

For the IT175, the **MN series** is likely the best balance of performance gain and practicality, while the D3MX is better suited for those pushing the bike harder with other mods. Always ensure proper installation and consider consulting a Yamaha specialist if you re not experienced with fuel-injection tuning.

Details:

Boyesen Power Reeds for 1980 - 1983 Yamaha IT175 - Fuel Air Reed xe: Status: In Stock.

part #: mnd3mx price

  • $49.96

specifications intakefuelmotorcycle:

  • for models: It175
  • for makes: Yamaha
  • for years: 1980-1983
  • brand: Boyesen
  • mpn: Mn/d3mx
  • compatible year: 1983 1982 1981 1980
  • bundle description: 1 Pc Genuine Boyesen Power Reeds
  • type: Power Reeds
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement

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  • Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery
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  • started: February 11, 2026
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for models: it175, for makes: yamaha, for years: 1980-1983, compatible year: 1983 1982 1981 1980, bundle description: 1 pc genuine boyesen power reeds, type: power reeds, core charge: free no core charge, fitment type: direct replacement,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery, sku: 22371215995668713,
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