YAMAHA 8M6-13555-00-00 Exciter Intake Manifold L/c 8H8-13555-01-00 SY18

( Manufacturer Part Number: 8M6-13555-00-00 ), ( Type: Exhaust Manifold )

Review YAMAHA Exciter L/c Oem Intake Manifold fits 570 1987

The **Yamaha EXCITER 570 (1987 model)** is a legendary off-road motorcycle known for its rugged performance, timeless design, and enduring reliability, and its **intake manifold system** plays a critical role in delivering that power. The **OEM 8M6-13555-00-00 intake manifold** and its paired **8H8-13555-01-00 SY18 throttle body** represent a meticulously engineered pair designed to optimize airflow and throttle response for the Exciter s air-cooled, single-cylinder engine. Crafted from durable aluminum, the **intake manifold** features a precision-machined design with smooth internal passages that minimize turbulence while maximizing the flow of air into the cylinder, ensuring efficient combustion and peak performance. Its robust construction is reinforced with strategically placed ribs and gussets, providing structural integrity to withstand the demands of off-road riding, including dust, debris, and the occasional rough landing. The manifold s compact yet functional shape integrates seamlessly with the Exciter s classic engine bay, maintaining the motorcycle s iconic aesthetic while delivering high-performance capabilities.

Complementing the manifold is the **SY18 throttle body (8H8-13555-01-00)**, a precision-engineered component that controls the flow of air into the engine based on throttle input. This throttle body is designed to work in tandem with the intake manifold, ensuring a consistent and responsive throttle action that enhances both power delivery and rideability. The SY18 features a smooth-operating butterfly valve mechanism, which minimizes lag and allows for quick adjustments to airflow, making it ideal for both trail riding and light off-road adventures. The throttle body s compact yet robust design ensures durability, with a sturdy housing that protects internal components from the elements while maintaining a clean, functional appearance that aligns with the Exciter s retro-futuristic styling.

Together, the **8M6-13555-00-00 intake manifold** and **8H8-13555-01-00 SY18 throttle body** form a cohesive and high-performance intake system that is essential for maintaining the Exciter s legendary reputation. Whether you're restoring a classic Exciter to its original glory or upgrading an existing bike for improved performance, these OEM components offer a perfect blend of reliability, precision engineering, and timeless design. Their compatibility with the 1987 Exciter s air-cooled engine ensures that every ride is smooth, powerful, and true to Yamaha s off-road heritage. For enthusiasts seeking authenticity and performance, this intake manifold and throttle body combination is an indispensable addition to any Exciter build or restoration project.

### **Pros and Cons of buying a Yamaha 8M6-13555-00-00 (1987 Exciter 570 L/C Intake Manifold) and SY18 (8H8-13555-01-00)**

#### **Overview of Parts**

The **Yamaha 8M6-13555-00-00** is the **intake manifold** for the **1987 Yamaha Exciter 570 L/C** (likely referring to the **Exciter 570 L/C with a 570cc 2-stroke engine**). The **SY18 (8H8-13555-01-00)** appears to be a **carburetor or related air intake component** (possibly a **SY18 carburetor or air filter housing**).

These parts are essential for proper engine function, affecting performance, reliability, and emissions.

---

### **Pros of Buying These Parts**

1. **Authentic OEM Fitment**

- Both parts are **original Yamaha components**, ensuring a **perfect fit** with no modifications required.

- Reduces the risk of **misalignment or leaks** that can occur with aftermarket parts.

2. **Reliability & Durability**

- Yamaha s **1980s-era intake manifolds and carburetors** were built to last if maintained properly.

- The **Exciter 570 L/C** was a **reliable off-road bike**, and these parts were designed for **durable use** in rough conditions.

3. **Performance Stability**

- A **functional intake manifold** ensures proper **airflow and fuel mixture**, preventing **lean or rich conditions** that can damage the engine.

- The **SY18 carburetor (if applicable)** was tuned for the **570cc engine**, providing **consistent power delivery** without excessive tuning.

4. **Easier Maintenance & Repairs**

- Since these are **original parts**, finding **replacement gaskets, seals, or O-rings** will be straightforward.

- Mechanics familiar with **Yamaha 2-strokes** will be more comfortable working with them.

5. **Resale Value & Collectibility**

- If you plan to **restore or sell the bike later**, having **original or high-quality replacement parts** increases its **collector value**.

- Some classic Yamaha owners prefer **keeping OEM components** for authenticity.

6. **Warranty & Return Options (If Purchased New)**

- If buying from a **reputable dealer or Yamaha parts distributor**, some parts may come with a **limited warranty**.

- Easier **returns or replacements** if defective (unlikely with genuine parts).

7. **Compatibility with Modifications**

- If you plan to **upgrade the carburetor or intake system later**, these parts provide a **solid foundation** before modifications.

- Some aftermarket kits (like **K&N air filters or high-flow carbs**) can be installed over the original setup.

---

### **Cons of Buying These Parts**

1. **Age-Related Wear & Availability**

- **Limited stock** from dealers (may require special ordering).

- **Higher risk of counterfeit or low-quality replicas** if buying from untrusted sources.

- Some **Yamaha dealerships may no longer carry these parts**, forcing you to rely on **third-party sellers**.

2. **Potential for Counterfeit Parts**

- Due to **high demand for classic Yamaha parts**, many **fake or poorly made replicas** exist.

- **Risk of leaks, poor sealing, or incorrect dimensions** if the part is not genuine.

- **No warranty** if purchased from an unknown seller.

3. **Cost Compared to Aftermarket Alternatives**

- **OEM parts can be expensive**, especially if sourced from **authorized dealers**.

- **Aftermarket equivalents** (e.g., **Yamaha-compatible intake manifolds, carburetors, or complete kits**) may be **cheaper and equally reliable**.

- Example: A **new SY18 carburetor** might cost **$100 $200**, while an **aftermarket alternative** (e.g., **Walbro or Mikuni**) could be **$50 $150**.

4. **Maintenance & Cleaning Requirements**

- **2-stroke carburetors (like the SY18) require frequent cleaning and tuning** to prevent **clogging or poor performance**.

- **Intake manifolds may develop cracks over time**, especially if the bike was **abused or stored improperly**.

- **Gaskets and seals** may need replacement, adding to **ongoing maintenance costs**.

5. **Potential for Emissions Issues (If Modified)**

- If the bike was **modified with a high-flow carburetor or intake**, the **original SY18 may not meet modern emissions standards** (if applicable).

- Some **states or countries require smog checks**, and aftermarket mods could **fail inspection**.

6. **Difficulty in Finding Specialized Tools**

- Installing or servicing these parts may require **specific Yamaha tools** (e.g., **carburetor jigs, intake manifold clamps**).

- If you don t have the right tools, you may need to **rent or purchase them**, adding to costs.

7. **Risk of Overpaying for "Restored" Parts**

- Some sellers market **"restored" or "rebuilt" parts**, which may just be **cleaned and repainted** without proper refurbishment.

- **No guarantee of quality** unless purchased from a **trusted mechanic or Yamaha specialist**.

---

### **Conclusion & Recommendation**

**Enthusiasts who prioritize authenticity** and want to **preserve the bike s original character**.

**Restoration projects** where **OEM parts are preferred** for historical accuracy.

**Owners who trust Yamaha s build quality** and don t mind paying for **proven reliability**.

**Those who plan to keep the bike long-term** and want **easy future repairs**.

**Budget-conscious buyers** aftermarket parts are often **cheaper and just as reliable**.

**Owners who plan heavy modifications** (e.g., **big bore kits, high-performance carbs**) OEM parts may **limit performance gains**.

**Those who struggle with maintenance** 2-stroke carbs and intake systems **require regular upkeep**.

**People in areas with strict emissions laws** modifications could **void compliance**.

---

### **Final Recommendation**

- **Purchase from an authorized Yamaha dealer or a trusted classic motorcycle parts supplier** (e.g., **Cycle World, Iron Horse, or a local Yamaha specialist**).

- **Verify authenticity** ask for a **bill of materials (BOM) or Yamaha part number confirmation**.

- **Consider a warranty** if available.

- **Inspect for cracks, leaks, or wear** especially on the **intake manifold and carburetor**.

- **Test the carburetor** (if possible) to ensure it **idles smoothly and doesn t flood**.

- **Buy from a reputable seller** (e.g., **Facebook Marketplace with good reviews, eBay with verified feedback, or a trusted mechanic**).

- **Avoid "too good to be true" deals** counterfeit parts are common.

- **Intake Manifold:** Some **Yamaha-compatible aftermarket manifolds** (e.g., from **Yamaha s own parts catalog or third-party makers**) may be **cheaper and just as good**.

- **Walbro 1050 or 1100 carburetor** (common upgrade for 570cc Yamahas).

- **Mikuni VS28 or VS30** (for better throttle response).

- **Air Filter:** A **K&N or Mikuni high-flow air filter** can **improve airflow** without major modifications.

- **Clean the carburetor (SY18) every 50 100 hours** (or more often if riding in dusty conditions).

- **Check gaskets and seals** replace if leaking.

- **Inspect the intake manifold for cracks** (especially near the carburetor mount).

- **Use high-quality fuel and oil** to prevent carburetor clogging.

---

- You **value authenticity and reliability**.

- You **don t mind paying for OEM quality**.

- You **plan to maintain the bike properly**.

**If you re open to alternatives, aftermarket parts can be just as good (

Details:

1987 Yamaha Exciter 570 L/c Oem Intake Manifold 8H8-13555-01-00 SY18. Change your mind, don't need the part, or just wan't what you are looking for. Removed From: 1987 Yamaha Exciter 570 L/C with miles.: This intake manifold is in very good condition and shows normal signs of wear.

part #: 8m6135550000 prices

• $11.99-$15.00

specifications exhaustsnowmobilee:

• for models: 570
• for makes: Yamaha
• for years: 1987
• mpn: 8m6-13555-00-00
• type: Exhaust Manifold

shipping exhaustsnowmobilee:

• carrier: USPS
• transit: 4-9 Days
• type: Fixed
• class: Expedited
• cost: $0.00
• service: USPS Priority Mail

payments exhaustsnowmobilee:

• credit card: Diners-club
• other
• wallet: Apple-pay

returns exhaustsnowmobilee:

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

offer exhaustsnowmobilee:

• options: Ship-to-home
• best offers: True
• sold: 0
• availability: In Stock
• quantity: 1
• started: February 8, 2026

general exhaustsnowmobilee:

• Parts Accessories > Snowmobile Parts > Exhaust
• condition: Used

seller exhaustsnowmobilee:

• city: Eau Claire, Wisconsin
• # reviews: 35867
• rating: 99.6%

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