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SUZUKI 65776-78969 Intake Manifolds

fits model: Vs700, 700, Intruder. make: Suzuki. year: 1986.

65776-78969 Suzuki 1986 Intruder 700 Vs700 Intake Manifolds Oem #21726

( Manufacturer Part Number: 65776-78969 ), ( Part Type: Intake Manifold ), ( Country Of Origin: Japan )

Review SUZUKI Intake Manifolds Oem #21726 fits INTRUDER VS700 700 1986

The **Suzuki 65776-78969 1986 Intruder 700/VS700 Intake Manifold** is a meticulously crafted, high-performance component designed to enhance the breathing and efficiency of Suzuki s legendary 700cc air-cooled V-twin engine, found in the iconic Intruder and VS700 models from the mid-1980s. This intake manifold is a direct replacement for the stock unit, engineered to deliver a seamless flow of air-fuel mixture into the cylinders while maintaining the classic mechanical integrity of the original design. Crafted from durable, heat-resistant materials, it ensures longevity under high-performance conditions, whether you re cruising on open highways or pushing the engine to its limits on the track. The manifold features precision-machined passages that optimize airflow dynamics, reducing turbulence and improving throttle response for a more aggressive and responsive power delivery. Its robust construction includes reinforced mounting points and gaskets designed to prevent leaks, ensuring a tight seal with the engine and carburetor setup, whether you re running a single or dual-carb configuration. For enthusiasts seeking to restore or upgrade their 1986 Intruder or VS700, this intake manifold bridges the gap between stock reliability and aftermarket performance, allowing riders to experience a noticeable boost in low-end torque and mid-range power without sacrificing the timeless character of the original engine. Whether you re restoring a classic bike to showroom condition or fine-tuning it for spirited riding, this manifold is a critical component for achieving a balanced, high-performance setup that stays true to Suzuki s engineering legacy.

The **Suzuki GSX-R700 (1986 Intruder 700) intake manifolds** (specifically part numbers **65776-78969**) are aftermarket components designed to improve airflow and performance. Below is a detailed breakdown of their pros and cons, followed by a conclusion and recommendation.

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### **Pros of Installing Suzuki GSX-R700 Intake Manifolds (65776-78969)**

1. **Improved Airflow and Horsepower**

- The stock intake manifold on the Intruder 700 is often criticized for being restrictive, especially compared to the GSX-R700 s high-performance design. These aftermarket manifolds are based on the GSX-R s setup, which features larger throttle bodies and more efficient airflow paths. This can result in a noticeable power increase, particularly in the mid-to-high RPM range.

2. **Better Throttle Response**

- The GSX-R manifolds typically have a more direct and responsive throttle feel due to their design, which can make the bike feel more engaging and sportier, especially for riders accustomed to modern performance bikes.

3. **Compatibility with Tuning**

- If you plan to add a performance chip, dyno tune, or other modifications (e.g., exhaust, carburetor upgrades), these manifolds pair well with those upgrades. The GSX-R-based design is often more forgiving with tuning than the stock Intruder setup.

4. **Aesthetic Appeal**

- The GSX-R manifolds have a cleaner, more aggressive look compared to the stock Intruder manifolds. This can be appealing if you re aiming for a more sporty or custom appearance.

5. **Potential for Better Fuel Economy (Indirectly)**

- While not a direct benefit, improved airflow can lead to more efficient combustion in some cases, though this is highly dependent on other factors like tuning and riding style.

6. **Easier Installation**

- These manifolds are designed to drop-in replace the stock manifolds with minimal modifications. They often come with gaskets and mounting hardware, simplifying the installation process.

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### **Cons of Installing Suzuki GSX-R700 Intake Manifolds (65776-78969)**

1. **Potential for Rough Idling or Tuning Issues**

- The GSX-R manifolds are not a direct drop-in for the Intruder 700 without some adjustments. The carburetor setup (if using stock or aftermarket carbs) may need tuning to compensate for the increased airflow. Without proper tuning, you might experience rough idling, hesitation, or even stalling, especially at low RPMs.

2. **No Direct Power Gain Without Tuning**

- Simply swapping manifolds will not guarantee a significant power increase unless the engine is tuned to match the new airflow. The Intruder 700 s stock ECU (if equipped) or carburetor setup may not optimize for the GSX-R manifolds, leading to underperformance or poor drivability.

3. **Possible Backfiring or Exhaust Issues**

- Increased airflow can cause lean conditions if the fueling isn t adjusted. This may result in backfiring, especially through the exhaust or carburetor, which can be annoying and potentially damaging over time.

4. **Cost**

- While these manifolds are not extremely expensive (typically ranging from $100 to $200 depending on the source), they are still an additional cost on top of any other modifications you might be considering (e.g., tuning, exhaust, or carburetor upgrades).

5. **Compatibility Concerns**

- The GSX-R manifolds are not a perfect fit for the Intruder 700 s engine bay layout. Some riders report minor clearance issues with the throttle cables or other components, requiring slight modifications or adjustments during installation.

6. **Limited Real-World Power Gains**

- The actual power increase may be modest unless paired with other upgrades (e.g., a performance exhaust, upgraded carbs, or a tune). Expect gains of **5-15 horsepower** depending on the rest of the bike s setup, but this is often not enough to justify the cost for casual riders.

7. **Potential for Voiding Warranty (If Applicable)**

- If your Intruder 700 is still under warranty, installing aftermarket manifolds may void it, especially if the manufacturer considers it a "performance modification."

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### **Conclusion**

The **Suzuki GSX-R700 intake manifolds (65776-78969)** are a viable option for riders looking to enhance the airflow and throttle response of their Intruder 700, particularly if they are already planning other performance upgrades. However, they are not a "set-and-forget" modification. The key to success lies in proper tuning whether through a performance chip, carburetor adjustments, or a dyno tune to ensure the engine runs smoothly and efficiently with the increased airflow.

If you are a **performance-oriented rider** who plans to invest in other upgrades (e.g., exhaust, carburetor, or tuning), these manifolds can be a worthwhile addition. For **casual riders** or those who prioritize reliability and simplicity, the benefits may not outweigh the potential hassles of tuning and potential drivability issues.

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### **Recommendation**

- **Install if:**

- You are already planning a **full performance build** (e.g., exhaust, carburetor, or tuning).

- You want a **more sporty throttle response** and are willing to tune the bike afterward.

- You are comfortable with **DIY tuning** or have access to a professional tuner.

- You like the **aesthetic** of the GSX-R manifolds and want a more aggressive look.

- **Avoid if:**

- You are looking for a **simple, no-fuss modification** with minimal tuning required.

- You are not planning other performance upgrades, as the power gains may be negligible.

- You are concerned about **potential tuning issues** or rough idling without adjustments.

- Your bike is **still under warranty**, as this modification may void it.

**Final Verdict:** These manifolds are best suited for **enthusiasts who are committed to building a more powerful Intruder 700**. If you re not ready to invest in tuning or other upgrades, they may not be worth the trouble. Always **test ride and tune** after installation to ensure optimal performance.

Details:

Philadelphia, PA. 1986 Intruder 700.

part #: 6577678969 prices

  • $25.00-$40.00

specifications intakefuelmotorcycle:

  • for models: Vs700, 700, Intruder
  • for makes: Suzuki
  • for years: 1986
  • mpn: 65776-78969
  • part type: Intake Manifold
  • country of origin: Japan

shipping intakefuelmotorcycle:

  • cost: $12.00
  • service: Standard
  • type: Fixed
  • transit: 3-7 Days
  • class: Standard

offer intakefuelmotorcycle:

  • started: February 18, 2026
  • availability: In Stock
  • quantity: 1
  • sold: 0
  • options: Ship-to-home

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  • city: Marcus Hook, Pennsylvania
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  • condition: Used
  • Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery

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for models: vs700, 700, intruder, for makes: suzuki, for years: 1986, part type: intake manifold, country of origin: japan,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery, sku: 22476482655437772,
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3 offers $25.00–$40.00 USD
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