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  3. KAWASAKI 49002-1093

KAWASAKI 49002-1093 Exhaust Valve

fits model: Kx500. make: Kawasaki. year: 1989–2004.

49002-1093 Kawasaki 1987 1989-2004 Kx500 Exhaust Valve Guide

( Manufacturer Part Number: 49002-1093 ), ( Part Type: Valve Exhaust Guide ), ( Country Of Origin: Japan )

Review KAWASAKI 1987 Exhaust Valve Guide fits KX500 1989–2004

The **Kawasaki 49002-1093 exhaust valve** is a precision-engineered component designed specifically for Kawasaki KX500 models produced between **1987 and 2004**, ensuring optimal performance, reliability, and longevity for this legendary off-road motorcycle. Crafted from high-grade **forged steel**, this valve is meticulously machined to meet Kawasaki s exacting specifications, delivering seamless operation within the engine s combustion chamber. The **exhaust valve** plays a critical role in regulating the flow of gases during the engine s exhaust stroke, directly impacting power output, fuel efficiency, and overall engine health. Its **tapered seat and precise valve face geometry** ensure minimal leakage and maximum efficiency, reducing backpressure while maintaining structural integrity under extreme temperatures and high RPM conditions. Whether you re restoring a classic KX500 or maintaining a high-performance bike, this valve is built to withstand the demands of aggressive riding, from trail racing to heavy-duty enduro. Compatible with both **air-cooled and liquid-cooled** KX500 engines, this part is a direct-fit replacement, eliminating the need for modifications or custom adjustments. Kawasaki s reputation for durability is reflected in this component, which is designed to resist warping, pitting, and premature wear key factors that contribute to the bike s legendary reliability. For riders who demand nothing less than perfection, the **49002-1093 exhaust valve** is an essential upgrade or replacement part, ensuring your KX500 continues to deliver the raw, exhilarating performance that has made it a favorite among motocross enthusiasts for decades.

### Pros and Cons of Buying a Kawasaki 49002-1093 (1987 2004 KX500 Exhaust Valve)

#### **Pros:** The Kawasaki 49002-1093 exhaust valve, part of the KX500 series produced between 1987 and 2004, offers several advantages for riders and mechanics:

1. **Reliability and Durability** Kawasaki engines, especially from this era, are known for their robust construction and longevity. The KX500 was a popular off-road bike, and its components were designed to withstand heavy use, making the exhaust valve a dependable part.

2. **Widely Available Parts** Due to the KX500 s popularity, the 49002-1093 valve and related components are still relatively easy to find in the aftermarket. This ensures that replacements or repairs are straightforward if needed.

3. **Compatibility with Modifications** The KX500 was a favorite for tuning, and the exhaust valve is a common upgrade point for performance enthusiasts. Swapping it for a stiffer or lighter valve can improve engine breathing and power output.

4. **Cost-Effective Replacement** Compared to OEM valves, aftermarket alternatives (such as forged or hardened steel valves) are often cheaper while offering improved durability and performance.

5. **Legacy Support** Kawasaki continued producing parts for older models for years, and many third-party manufacturers still produce compatible replacements, reducing the risk of obsolescence.

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#### **Cons:** While the valve has its strengths, there are also notable drawbacks to consider:

1. **Age-Related Wear** Valves from this era, especially in older KX500s, may show signs of wear or pitting over time, particularly if the bike was heavily used or poorly maintained. This can lead to premature failure or reduced performance.

2. **Limited Modern Performance** The stock exhaust valve may not be optimized for high-RPM or aggressive riding styles. Stock valves can be prone to stress fractures or bending under heavy loads, especially in modified engines pushing beyond stock specifications.

3. **Potential for Counterfeit Parts** Due to the valve s age, there is a risk of purchasing low-quality or counterfeit replacements. Always source parts from reputable dealers to avoid performance issues or safety hazards.

4. **Maintenance Requirements** The valve, like other engine components, requires regular inspection and maintenance. Neglecting valve adjustment or replacement intervals can lead to catastrophic engine failure.

5. **Compatibility Issues with Later Mods** If the bike has undergone significant modifications (e.g., big bore kits, aggressive camshafts, or high-flow headers), the stock valve may not keep up, leading to valve float or failure under high loads.

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### **Conclusion:**

The Kawasaki 49002-1093 exhaust valve is a solid, reliable component for the KX500, especially for riders who prioritize durability and ease of replacement. It remains a practical choice for stock or lightly modified bikes, as well as for those who appreciate the legacy of Kawasaki s off-road engineering. However, for high-performance or heavily modified applications, upgrading to a stiffer or aftermarket valve is advisable to prevent failure and maintain engine integrity.

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### **Recommendation:**

- **For Stock or Lightly Modified KX500s:** The stock 49002-1093 valve is a fine choice, provided the bike is well-maintained. Regular valve adjustment and inspection are essential to prevent wear.

- **For Performance Applications:** Consider upgrading to an aftermarket valve (e.g., forged steel or hardened valves) to handle increased stress from modifications. Brands like **Kawasaki Performance (KP), JE, or T&D** offer reliable alternatives.

- **For Older or High-Mileage Bikes:** If the bike shows signs of valve wear (e.g., pitting, bending, or excessive play), replace the valve immediately to avoid engine damage.

- **Sourcing Parts:** Always buy from trusted suppliers to avoid counterfeit or low-quality replacements. Check reviews or consult with experienced KX500 mechanics for recommendations.

Ultimately, the 49002-1093 valve is a practical and cost-effective solution for many riders, but its suitability depends on the bike s condition, intended use, and level of modification. Prioritize maintenance and consider upgrades if pushing the engine beyond stock limits.

Details:

The domestic shipping price listed is for the lower 48 states only. Kawasaki part number is 49002-1093. It MAY fit the following model's: 1989 2004 KX500. I always do my best to combine shipping on multiple items.

This is a exhaust valve guide from 1990 Kawasaki KX500.

part #: 490021093 price

  • $65.00

specifications valvemotorcycleaz:

  • for models: Kx500
  • for makes: Kawasaki
  • for years: 1989-2004
  • mpn: 49002-1093
  • part type: Valve Exhaust Guide
  • country of origin: Japan

shipping valvemotorcycleaz:

  • transit: 3-8 Days
  • cost: $0.00
  • carrier: USPS
  • service: USPS Ground Advantage, USPS Priority Mail
  • type: Fixed
  • class: Standard, Expedited

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for models: kx500, for makes: kawasaki, for years: 1989-2004, part type: valve exhaust guide, country of origin: japan,
category: motorcycle parts > engines engine parts > valvetrain components > engine valves, sku: 8688307821836762,
Kawasaki 49002-1093 Is Similar To:
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1 offer $65.00 USD
  • New. Offer #1 priced at $65.00 + $0.00 shipping estimate = $65.00* total. The core of this kit is the two oversized spacers ( ), which are engineered to be slightly taller than the OEM parts. Kawasaki KX500: 1989 2004.FREE SHIPPING

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