WSM 26320-W365160-40 Mikuni Carburetor Rebuild Kit 38/44/46MM

( Brand: Wsm ), ( Manufacturer Part Number: 26320-W365160-40 ), ( Part Type: Carburetor )

Review WSM Mikuni 38/44/46mm Carburetor Rebuild Kit fits TIGERSHARK TS770R 1998–1999

The **WSM 26320-W365160-40 Mikuni 38/44/46mm Carburetor Rebuild Kit** is a meticulously engineered solution designed specifically for the high-performance demands of the **1998-1999 Kawasaki Tigershark TS770R**, ensuring peak throttle response, optimal fuel delivery, and long-term reliability. This premium rebuild kit is tailored to accommodate the **38mm, 44mm, and 46mm** Mikuni carburetors commonly found on this sporty, high-revving twin-cylinder motorcycle, allowing riders to restore or upgrade their carburetion system with confidence. Crafted with precision, the kit includes a comprehensive selection of **OEM-quality gaskets, seals, and internal components**, including the **needle jets, pilot jets, main jets, and throttle bodies**, all of which are essential for maintaining the delicate balance between air and fuel intake. The **metal and rubber seals** are designed to resist heat and wear, ensuring a tight, leak-free seal that prevents vacuum loss and fuel waste, while the **precision-machined throttle bodies** and **smooth-operating needles** guarantee crisp, responsive throttle action critical for the TS770R s aggressive, sport-tuned character. Whether you're performing a routine maintenance overhaul or addressing performance degradation due to carbon buildup, this kit provides everything needed to strip down, clean, and reassemble the carburetor with factory-like accuracy. The inclusion of **high-grade lubricants and cleaning solvents** further enhances the rebuild process, ensuring that each component is restored to its original specifications, free from contaminants that could impede performance. For riders who demand the best from their Tigershark, this rebuild kit is an indispensable tool, bridging the gap between stock reliability and modified performance while preserving the motorcycle s iconic, rev-happy spirit.

The **WSM 26320-W365160-40 Mikuni 38/44/46mm Carburetor Rebuild Kit** is a popular choice for rebuilding the stock Mikuni TM carburetor found on the **1998-1999 Kawasaki Tigershark TS770R**. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Compatibility and Fit**

The kit is specifically designed for the **TM carburetor** used on the TS770R, ensuring a direct fit without modification. This eliminates the need for adapters or custom parts, making installation straightforward.

2. **High-Quality Components**

- **Needle and jet assemblies** (38/44/46mm sizes) for precise fuel delivery.

- **O-rings, gaskets, and seals** to prevent leaks and ensure a tight seal.

- **Pilot and main jets** that are often upgraded for better performance.

- **Rebuild instructions** and sometimes a **carburetor cleaning solution**, which helps maintain cleanliness during the process.

These components are designed to last longer than aftermarket alternatives and reduce the risk of leaks or performance issues.

3. **Performance Benefits**

Rebuilding the carburetor can restore or even improve throttle response, fuel efficiency, and overall engine performance. If the carburetor has been neglected, a rebuild can eliminate **rich/lean conditions**, **hunting**, or **poor idle stability**, which are common issues in older bikes.

Some users also opt to upgrade to **larger jets or needles** (within the 38/44/46mm range) for a slight power increase, though this requires careful tuning.

4. **Cost-Effective**

Compared to replacing the entire carburetor (which can cost **$200 $400 ** for a new TM carb), a rebuild kit is significantly cheaper (**$50 $100**). This makes it a budget-friendly way to maintain or upgrade performance.

5. **Ease of Rebuild**

The TM carburetor is relatively straightforward to rebuild, especially for those with basic mechanical skills. The kit provides clear instructions, and many online resources (videos, forums) guide users through the process step-by-step.

6. **Long-Term Reliability**

A properly rebuilt carburetor will last much longer than one that is neglected or only partially cleaned. This reduces the likelihood of sudden failures, which can be costly and dangerous.

7. **Customization Options**

The kit allows for **fine-tuning** by selecting different jet sizes (38, 44, or 46mm) or upgrading to **aftermarket needles** (e.g., Mikuni or Keihin) for better performance characteristics.

8. **Environmental and Safety Benefits**

A clean, properly adjusted carburetor reduces **fuel waste** and **emissions**, making the bike more efficient and environmentally friendly.

---

### **Cons**

1. **Time-Consuming Process**

Rebuilding a carburetor requires **disassembly, cleaning, inspection, and reassembly**, which can take **2 4 hours** for a first-time user. Those with limited mechanical experience may find it frustrating.

2. **Potential for Mistakes**

If not done carefully, mistakes such as **over-tightening jets, incorrect needle selection, or improper gasket placement** can lead to **poor performance, leaks, or even engine damage**. This risk is higher for beginners.

3. **Requires Additional Tools**

- **Carburetor cleaning solution** (often sold separately).

- **Small screwdrivers, pliers, and a jet puller** (for removing stuck jets).

- **Compressed air** for cleaning internal passages.

- **A clean workspace** to avoid dirt contamination.

Users may need to purchase these tools if they don t already own them.

4. **Limited Lifespan of Some Components**

Even with a rebuild, **rubber seals and O-rings** will eventually wear out, especially if the bike is ridden hard or in harsh conditions. These may need replacement every **2 3 years** or **20,000 30,000 miles**.

5. **Performance Tuning May Be Needed**

After rebuilding, the bike may require **throttle body adjustments (TBA) or ECU tuning** (if equipped) to optimize performance. Some riders find that simply rebuilding isn t enough to restore stock-like performance, especially if the bike has been modified.

6. **Not a Permanent Fix for Major Issues**

If the carburetor has **internal corrosion, cracked passages, or severe wear**, a rebuild may not fully resolve the problem. In such cases, **replacement may be necessary**.

7. **Aftermarket vs. OEM Debate**

Some enthusiasts prefer **aftermarket carburetor kits** (e.g., **Keihin, Mikuni performance parts**) for better performance, but these are not included in this specific rebuild kit. If you want upgrades, you may need to purchase additional parts separately.

8. **Risk of Contamination**

If the carburetor is not cleaned properly before disassembly, **dirt or old fuel residue** can clog jets or passages, negating the benefits of the rebuild. This requires **careful cleaning** with carburetor cleaner.

---

### **Conclusion**

The **WSM Mikuni TM Rebuild Kit** is a **solid choice** for restoring or maintaining the stock carburetor on a **1998-1999 TS770R**. It offers **high-quality, compatible parts** at a **fraction of the cost** of a full replacement, making it ideal for riders who want to **improve performance, reliability, and fuel efficiency** without a major investment.

However, it is **not a plug-and-play solution** it requires **time, patience, and some mechanical skill**. Beginners may struggle with the process, and mistakes can lead to **poor performance or even damage**. That said, with **proper research, tools, and care**, a rebuild can significantly extend the life of the carburetor and enhance the bike s operation.

For those who are **comfortable with basic maintenance**, this kit is **highly recommended** as a **cost-effective and effective** way to keep the TS770R running smoothly. If you re unsure about the rebuild process, consulting **YouTube tutorials** (e.g., from **Kawasaki Performance, Cycle World, or carburetor rebuild specialists**) or seeking help from a **local bike mechanic** can be very helpful.

If you re looking for **maximum performance** and don t mind spending more, an **aftermarket carburetor (e.g., Keihin FCR or Mikuni TMX)** with a full rebuild kit might be worth considering, but the **WSM kit is an excellent starting point** for most riders.

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### **Final Recommendation**

You want a **cost-effective way to restore or upgrade** your TS770R s carburetor.

You re willing to **invest time** in learning the rebuild process.

You prefer **OEM-quality parts** over aftermarket alternatives.

Your carburetor shows signs of **wear, leaks, or poor performance** but isn t severely damaged.

You re **not comfortable with mechanical work** and don t want to risk mistakes.

You need **immediate performance gains** without the hassle of a rebuild.

Your carburetor has **major internal damage** (e.g., cracked body, severe corrosion).

- **Watch rebuild tutorials** before starting.

- **Clean the carburetor thoroughly** before disassembly.

- **Follow the instructions carefully**, especially when installing jets and needles.

- **Consider upgrading to larger jets (e.g., 44mm) if you want more power**.

- **Adjust the throttle body screws** after reassembly for optimal idle and performance.

For most **1998-1999 TS770R owners**, this kit is a **wise investment** that will pay off in **better reliability, throttle response, and longevity** of the engine.

Details:

Parts without fitment are to be assumed universal and may require vehicle modification. Compatibility: Years: Make: model: Application: Notes: 1994 - 1995 Polaris SLT 750These model's have an external fuel pump, the pump components in rebuilt kits listed will not work. I need to exchange an item. 1992 - 1997 Sea-Digits, 1997 1998 Pro 785, 1998 Sea-Dogs, 2003 2011 KawasakiJS800 800 SX-R, 1996 KawasakiJS750 750SXi, 1993 1995 Polaris SL 750These model's have an external fuel pump, the pump components in rebuilt kits listed will not work.

This is helpful if you are buying multiple items. WSM Mikuni 38/44/46mm Carburetor Rebuild Kit for 1998 1999 TigerShark TS770R: Kit, Contains: one kit to rebuild a single carb, Actual Contents May Vary From Photo, Does not contain parts model's with external fuel pumps, Square Pump Aftermarket 38/40, Needle and seats sold separately.: Brand: WSM, model Number: 26320-W365160-40.

part #: 26320w36516040 price

• $65.73

specifications jetskiintakeez:

• for models: Ts770r, Tigershark
• for years: 1998-1999
• brand: Wsm
• mpn: 26320-w365160-40
• part type: Carburetor

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• quantity: 9
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• started: January 31, 2026

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• condition: New
• Parts Accessories > Personal Watercraft Parts > Intake Fuel Systems

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