fits model: Zx6r, Zx636, Ninja. make: Kawasaki. year: 2005.

( Type: Gas Tank ), ( UPC: 510010050723 )
The **Kawasaki 51001-0050-723 2005 Ninja ZX-6R/ZX636 Gas Tank Fuel Cell Reservoir** is a precision-engineered component designed specifically for Kawasaki s high-performance sportbikes, offering both form and function in equal measure. Crafted from durable, high-grade materials, this fuel cell reservoir is a critical part of the bike s fuel system, ensuring a seamless flow of gasoline while maintaining structural integrity under the demands of aggressive riding. The reservoir features a sleek, aerodynamic design that complements the aggressive styling of the ZX-6R, blending seamlessly with the bike s carbon fiber accents and polished aluminum surfaces. Its robust construction includes reinforced seams and a secure mounting system, preventing leaks or flexing even during hard cornering or high-speed maneuvers. The fuel cell is engineered to maximize capacity while minimizing weight, a crucial balance for a bike known for its razor-sharp handling and top-tier performance. Whether installed on a freshly restored ZX-6R or used as a replacement for an aging original, this part upholds Kawasaki s reputation for reliability and precision, delivering both durability and a polished aesthetic that enhances the bike s overall appeal. Ideal for riders who demand nothing less than perfection, this fuel cell reservoir ensures that every ride is as smooth and efficient as the bike itself.
### **Pros and Cons of Buying a 2005 Kawasaki Ninja ZX-6R (Part Number: 51001-0050-723 Fuel Cell/Reservoir)**
#### **Pros**
1. **Performance and Power**
The 2005 Ninja ZX-6R is a high-performance sportbike with a 600cc inline-four engine producing around **130 140 hp** (depending on tuning and modifications). It features a **double wishbone front suspension** and **monoshock rear suspension**, providing sharp handling and agility. The bike s **lightweight chassis** (around **450 lbs dry**) enhances maneuverability, making it ideal for track days and spirited riding.
2. **Reliability (for its class and age)**
Kawasaki s inline-four engines are known for durability, especially when maintained properly. The **2005 model** is not overly complex, meaning many repairs can be done by experienced riders or mechanics. With regular servicing, the engine and transmission can last well beyond **100,000 miles**.
3. **Aftermarket Support**
The ZX-6R has a strong aftermarket following, with availability of **performance parts** (e.g., exhausts, ECU tunes, suspension upgrades) and **replacement components** (e.g., clutch, chain, bearings). This makes it easier to keep the bike competitive or restore it to better condition.
4. **Resale Value (for a used sportbike)**
While not a modern super bike, the Ninja ZX-6R retains decent resale value compared to other sportbikes of its era. Well-maintained examples can still fetch **$3,000 $5,000 ** depending on condition and mileage.
5. **Fuel Cell/Reservoir (Part 51001-0050-723)**
This specific part is the **fuel cell/reservoir assembly**, which holds the fuel and connects to the fuel pump and injectors. If the original is failing (leaks, cracks, or electrical issues), replacing it with an **OEM or high-quality aftermarket part** can restore proper fuel delivery and prevent stalling or fuel starvation. Kawasaki s fuel cells are generally reliable, but wear over time is expected.
6. **Track and Racing Potential**
The ZX-6R was designed with performance in mind, making it a **popular choice for track days**. Its **lightweight, nimble handling, and strong power delivery** (especially with a tune) allow it to compete well against modern sportbikes in amateur racing or time trials.
7. **Classic Sportbike Appeal**
For enthusiasts who enjoy the **aesthetics and driving dynamics** of early 2000s sportbikes, the ZX-6R offers a **sleek, aggressive look** with a **retro-futuristic design** that still holds up well. It bridges the gap between older bikes (like the 90s ZX-6R) and modern supersport bikes.
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#### **Cons**
1. **Age and Wear**
The **2005 model is 20 years old**, meaning it will require **more frequent maintenance** than a newer bike. Common wear items include:- **Brakes** (pads, rotors, and calipers may need replacement)
- **Tires** (high-performance sport tires degrade quickly)
- **Chain and sprockets** (will need adjustment or replacement)
- **Suspension** (shock seals and bushings may be worn)
- **Electronics** (ECU, sensors, and wiring can fail over time)
2. **Fuel Injection Reliability**
The **fuel cell/reservoir (51001-0050-723)** is a critical component, and if it s failing, it can cause **fuel leaks, priming issues, or stalling**. Older fuel systems are more prone to **clogging or electrical failures** (e.g., fuel pump relay, sensors). Replacing it with an **aftermarket part** (like a **Kawasaki-compatible or OEM replacement**) may be necessary, but compatibility can sometimes be an issue.
3. **High Maintenance Costs**
While parts are available, **labor costs for repairs** (especially on suspension, brakes, or engine components) can add up. Some mechanics may charge **premium rates** for working on older sportbikes due to their complexity.
4. **Fuel Economy**
The ZX-6R is **not fuel-efficient** by modern standards, averaging around **30 40 mpg** in real-world riding. This means **higher running costs** compared to cruisers or adventure bikes.
5. **Weight Distribution and Comfort**
The bike is **light but not ergonomic for all riders**. The **narrow seat, upright riding position, and lack of wind protection** make it less comfortable for long-distance touring. Riders over **6 tall** may find the **reach and ergonomics** cramped.
6. **Electrical Issues**
Older bikes (especially pre-2010) can suffer from **electrical gremlins**, such as:- **Faulty sensors** (throttle position, oxygen, crankshaft)
- **Wiring harness failures**
- **ECU glitches** (may require a **reflash or replacement**)
These issues can be **difficult to diagnose** and may require **specialized tools or knowledge**.
7. **Noise and Vibration**
The **inline-four engine is loud**, especially at high RPM, which can be **tiring for long rides**. The **vibration levels** (though well-damped by modern standards) can still be noticeable at certain speeds.
8. **Limited Modern Safety Features**
Compared to newer bikes, the **2005 ZX-6R lacks advanced safety tech** such as:- **ABS (Anti-lock Braking System)**
- **Traction Control**
- **Modern rider aids** (slipper clutch, quickshifter)
While these can be added aftermarket, they **increase complexity and cost**.
9. **Environmental and Legal Considerations**
- **Emissions standards** have changed since 2005, and some regions may have **restrictions on older bikes** (e.g., noise limits, smog checks).
- **Insurance costs** may be higher due to the bike s age and performance potential.
10. **Depreciation**
While it holds value better than some sportbikes, the **ZX-6R will continue to depreciate** over time. If you plan to keep it long-term, **resale value may not justify the upfront cost** of a well-maintained example.
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### **Conclusion and Recommendation**
#### **Who Should Buy This Bike?**
The **2005 Kawasaki Ninja ZX-6R** is best suited for:- **Enthusiasts who prioritize performance and handling** over comfort or modern conveniences.
- **Track-focused riders** who want a **lightweight, nimble bike** for spirited riding or amateur racing.
- **Those who enjoy classic sportbike aesthetics** and don t mind extra maintenance.
- **Budget-conscious buyers** who are willing to **invest in upkeep** to keep the bike reliable.
- **Riders who plan to modify it** (e.g., exhaust, suspension, ECU tuning) to improve performance.
#### **Who Should Avoid It?**
This bike is **not ideal** for:- **Casual riders** who want a **low-maintenance, comfortable daily bike**.
- **Long-distance touring** due to **lack of wind protection and ergonomics**.
- **Beginners** who may struggle with its **aggressive handling and power delivery**.
- **Those unwilling to spend money on maintenance** (brakes, suspension, electronics).
- **Riders in regions with strict emissions or noise laws** (may require modifications).
#### **Final Recommendation**
If you **find a well-documented, low-mileage example (under 5,000 miles or with a full service history)**, the **2005 Ninja ZX-6R can be an excellent purchase** for the right rider. **Prioritize bikes with:**
**No major frame or engine issues** (check for cracks, rust, or modifications).
**Fresh brakes, suspension, and tires** (critical for safety).
**A clean title and no accident history** (especially for the fuel cell/reservoir area).
**A mechanic s pre-purchase inspection** (to catch hidden problems).
**Budget-wise:**- **$2,500 $3,500** for a **basic, run-around example** (may need work).
- **$4,000 $6,000 ** for a **well-maintained, track-ready bike** with upgrades.
**If you re buying it for track use or as a project bike**, the **ZX-6R is a fantastic choice** just be prepared for **regular maintenance and potential upgrades**. If you want a **modern, low-maintenance sportbike**, consider newer alternatives like the **Kawasaki Ninja 400, Yamaha YZF-R7, or Honda CBR600RR**.
**Bottom Line:**The **2005 Ninja ZX-6
Dented as shown in picture, Removed From: 2005 Kawasaki Ninja Zx6r Zx636 with Unknown miles, Please review all pictures to assess the condition of item. R Cycle Parts. 2005 Kawasaki Ninja Zx6r Zx636 Gas Tank Fuel Cell Petrol Reservoir 51001-0050-723, This gas tank is in good condition and shows normal signs of wear.