1. Watercraft Intake & Fuel Systems Products
  2. sku: 15618944687751891
  3. WSM 4660-40396190-57

WSM 4660-40396190-57 Watercraft Carb Rebuild Kit Cat

fits model: Ts640. make: Arctic, Arctic-cat. year: 1998–1999.

4660-40396190-57 Wsm 1998-1999 Arctic Cat Ts640 Watercraft Carb Rebuild Kit

( Brand: Wsm ), ( Manufacturer Part Number: 4660-40396190-57 )

Review WSM Arctic Cat Watercraft Carb Rebuild Kit fits TS640 1998–1999

The **Arctic Cat TS640 Watercraft Carburetor Rebuild Kit (WSM 4660-40396190-57, compatible with models from 1998 1999)** is a meticulously engineered, high-performance solution designed to restore peak efficiency and reliability to the iconic TS640 outboard engine s carburetion system. This premium rebuild kit is tailored specifically for the TS640 s proven yet demanding carburetor assembly, ensuring a flawless fit and optimal performance after installation. Crafted with precision, it includes all essential components such as gaskets, seals, jets, diaphragms, and springs alongside a comprehensive set of tools and instructions to simplify the disassembly, cleaning, and reassembly process. The kit s components are manufactured to Arctic Cat s exacting standards, guaranteeing compatibility with the engine s fuel delivery system while minimizing the risk of leaks, clogs, or performance degradation. Whether addressing signs of wear, fuel inefficiency, or rough idling, this rebuild kit empowers mechanics and enthusiasts to perform a thorough restoration without compromising the TS640 s legendary power and responsiveness. Ideal for both maintenance routines and troubleshooting, it ensures a clean, optimized carburetor that breathes efficiently, delivers consistent throttle response, and extends the engine s lifespan making it an indispensable upgrade for any Arctic Cat TS640 owner seeking to preserve the integrity of their watercraft s performance.

**Pros and Cons of buying a Arctic Cat TS640 Carb Rebuild Kit (WSM 4660-40396190-57, 1998-1999 Models)**

### **Pros:**

1. **Compatibility** This kit is specifically designed for the Arctic Cat TS640 engine from the 1998-1999 model years, ensuring a proper fit without modifications.

2. **Performance Improvement** A rebuilt carburetor can restore optimal fuel-air mixture, improving throttle response, power, and overall engine efficiency.

3. **Cost-Effective Maintenance** Rebuilding the carburetor is often cheaper than replacing it entirely, especially if the rest of the engine is in good condition.

4. **Prevents Long-Term Damage** A clogged or malfunctioning carburetor can lead to fuel starvation, overheating, or engine failure. Rebuilding it now can prevent costly repairs later.

5. **Easier Than Full Replacement** If the carburetor is still structurally sound but just dirty or worn, rebuilding it is a straightforward DIY project for those with basic mechanical skills.

6. **Increased Fuel Efficiency** A properly functioning carburetor ensures better fuel atomization, which can lead to slightly improved mileage or fuel economy.

7. **Access to Original Parts** Since this is an OEM or high-quality aftermarket kit, you re getting parts that match the original specifications, reducing the risk of compatibility issues.

8. **Potential for Resale Value** If you plan to sell the watercraft later, a well-maintained engine with a rebuilt carburetor can make it more appealing to buyers.

### **Cons:**

1. **Time-Consuming DIY Project** Rebuilding a carburetor requires disassembly, cleaning, and reassembly, which can take several hours, especially for someone inexperienced.

2. **Skill Dependency** If you lack mechanical experience, there s a risk of improper reassembly, leading to further issues like leaks, poor performance, or even damage to the carburetor.

3. **Potential for Additional Repairs** If the carburetor has internal damage (e.g., cracked gaskets, worn jets, or seized components), the kit may not fully resolve the problem, requiring extra parts or professional help.

4. **Cost of Additional Tools** While the kit itself is reasonably priced, you may need carburetor cleaning solvents, brushes, gaskets, or specialized tools (like a carburetor bore cleaner) that aren t always included.

5. **Risk of Overhauling Unnecessarily** If the carburetor is only slightly dirty or has minor wear, a full rebuild might be overkill. In such cases, a simple cleaning or jet adjustment could suffice.

6. **Warranty Concerns** If the watercraft is under warranty, a DIY carburetor rebuild could void coverage, especially if something goes wrong.

7. **Market Availability** Older models like the 1998-1999 TS640 may have limited aftermarket support, meaning parts or instructions could be harder to find if issues arise.

8. **Alternative Solutions Exist** For some users, upgrading to an aftermarket carburetor (e.g., a performance carb) or switching to fuel injection (if feasible) might offer better long-term benefits, though these are more expensive upfront.

### **Conclusion:**

Buying this **Arctic Cat TS640 carb rebuild kit** is a practical choice if you re dealing with a carburetor that s dirty, clogged, or showing signs of wear but isn t beyond repair. It s a cost-effective way to restore engine performance without a full replacement. However, it s not a solution for severely damaged carburetors, and it requires patience and some mechanical skill to execute correctly.

If you re comfortable with DIY projects and have the time to properly clean and reassemble the carburetor, this kit is a solid investment. If you re unsure about your abilities or the carburetor s condition, consulting a small-engine mechanic or considering a professional rebuild might be safer.

### **Recommendation:** - **Proceed with the kit** if:

- You ve confirmed the carburetor is structurally intact but just needs cleaning/rebuilding.

- You re willing to invest the time to do it yourself or have access to someone who can assist.

- You re on a budget and want to avoid replacing the entire carburetor.

- **Consider alternatives** if:

- The carburetor shows signs of internal damage (e.g., cracked passages, seized components).

- You re not confident in your ability to rebuild it correctly.

- You d rather invest in a performance upgrade (e.g., an aftermarket carb) or fuel injection if your engine allows it.

For most casual users, this rebuild kit is a **good, budget-friendly option** to keep their TS640 running smoothly without major expenses. However, always inspect the carburetor thoroughly before purchasing to ensure it s a viable solution for your specific issue.

Details:

Square Pump Rebuild Kit.: Brand: WSM, model Number: 0-57. I need to exchange an item. 1998 1999 Arctic Cat TS640 Watercraft WSM Carb Rebuild Kit: Compatibility.

This is helpful if you are buying multiple items. Aftermarket 38/40. Parts without fitment are to be assumed universal and may require vehicle modification. Credit or Debit Card.

part #: 46604039619057 price

  • $65.73

specifications jetskiintakeez:

  • for models: Ts640
  • for makes: Arctic, Arctic-cat
  • for years: 1998-1999
  • brand: Wsm
  • mpn: 4660-40396190-57

returns jetskiintakeez:

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

shipping jetskiintakeez:

  • service: Standard
  • type: Fixed
  • class: Standard
  • transit: 2-5 Days
  • cost: $0.00

general jetskiintakeez:

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

seller jetskiintakeez:

  • rating: 99.8%
  • # reviews: 79225
  • city: Boise, ID

offer jetskiintakeez:

  • started: March 5, 2026
  • quantity: 9
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  • options: Ship-to-home
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for models: ts640, for makes: arctic, arctic-cat, for years: 1998-1999,
category: watercraft parts > intake fuel systems, sku: 15618944687751891,
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  • New. Offer #1 priced at $65.73 + $0.00 shipping estimate = $65.73* total. Credit or Debit Card Compatibility: 1998-1999 Arctic Cat TS640.FREE SHIPPING

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