MOOSE RACING 5912-M188402-ATV Carburetor Repair Kit 350L Atv

( Brand: Moose Racing ), ( Manufacturer Part Number: 5912-M188402-ATV ), ( Part Type: Carburetor )

Review MOOSE RACING Carburetor Repair Kit Polaris Atv fits TRAIL BOSS 4X4 1990–1993

The **Moose Racing 5912-M188402 ATV Carburetor Repair Kit** is a meticulously engineered solution designed specifically for restoring peak performance to the **Polaris Trail Boss 350L 4x4 ATV models from 1990 to 1993**, ensuring reliable throttle response, optimal fuel delivery, and long-term engine protection. This high-quality repair kit is crafted to address common carburetor issues such as clogged jets, worn seals, or degraded internal components that can lead to sluggish acceleration, rough idling, or even complete engine failure. The kit includes a **precision-machined carburetor gasket set**, featuring O-rings and seals crafted from durable silicone or nitrile rubber to prevent leaks and maintain a tight seal under high-pressure conditions. For maximum airflow efficiency, the repair kit incorporates **new carburetor jets and needles**, calibrated to the exact specifications of the Trail Boss s carburetor system, ensuring proper fuel-air mixture ratios for smooth operation across all engine speeds. Additionally, the kit provides **replacement carburetor bowls and covers**, often prone to cracking or warping over time, which can disrupt vacuum and fuel flow. Moose Racing s attention to detail extends to the inclusion of **cleaner screens and filters**, designed to trap debris and prevent contamination of the carburetor s delicate internals. Whether you're tackling a minor tune-up or restoring a neglected Trail Boss to factory-like performance, this repair kit offers a comprehensive, no-compromise solution that combines ease of installation with long-lasting durability. Built to withstand the demands of off-road use, the components in this kit are designed to withstand heat, vibration, and the rigors of frequent use, ensuring your ATV remains a dependable companion for years of adventurous rides.

### **Pros and Cons of buying a Moose Racing 5912-M188402 ATV Carburetor Repair Kit for a 1990-1993 Polaris Trail Boss 350L 4x4 ATV**

#### **Pros**

1. **Direct Compatibility** The kit is specifically designed for the 1990-1993 Polaris Trail Boss 350L 4x4, ensuring proper fitment without modifications.

2. **High-Quality Components** Moose Racing is a reputable brand known for manufacturing durable and reliable aftermarket parts, including carburetor repair kits.

3. **Comprehensive Repair Solution** The kit likely includes essential gaskets, seals, and possibly a rebuilt carburetor or replacement parts, reducing the need for additional purchases.

4. **Performance Improvement Potential** A properly repaired or rebuilt carburetor can restore optimal fuel delivery, improving throttle response, power, and fuel efficiency.

5. **Cost-Effective Alternative** Repairing the carburetor with this kit may be cheaper than replacing the entire carburetor or engine, especially if the carburetor itself is still functional but worn.

6. **Ease of Installation** Many Moose Racing kits are designed for straightforward installation, making them accessible for DIYers with basic mechanical skills.

7. **Warranty Coverage** Moose Racing parts often come with warranties, providing peace of mind against defects in materials or workmanship.

#### **Cons**

1. **Potential Overkill for Minor Issues** If the carburetor s problems are minor (e.g., a clogged jet or a single worn gasket), purchasing a full repair kit may be unnecessary, leading to wasted money.

2. **Learning Curve** Rebuilding or repairing a carburetor requires some mechanical knowledge. If the user lacks experience, they may struggle with proper disassembly, cleaning, or reassembly.

3. **Time-Consuming Process** Carburetor repair can be time-intensive, especially for those unfamiliar with the process. This may not be ideal for users who need their ATV operational quickly.

4. **Compatibility Concerns with Modifications** If the ATV has been modified (e.g., upgraded exhaust, fuel system changes), the stock carburetor repair kit may not account for those alterations, requiring additional adjustments.

5. **Risk of Improper Installation** If the kit is not installed correctly, it could lead to poor performance, fuel waste, or even engine damage. This risk increases if the user lacks confidence in their mechanical abilities.

6. **Alternative Options May Exist** Depending on the specific issue (e.g., a leaking gasket vs. a failing float needle), a simpler, cheaper fix (e.g., individual gaskets or a carburetor cleaner) might suffice.

7. **Resale Value Impact** If the ATV is intended for resale, a heavily modified or repaired carburetor may not appeal to buyers looking for stock or lightly used vehicles.

---

### **Conclusion**

The **Moose Racing 5912-M188402 carburetor repair kit** is a strong choice for owners of a **1990-1993 Polaris Trail Boss 350L 4x4** experiencing carburetor-related issues, particularly if the problem is significant (e.g., internal wear, gasket failure, or poor performance). The kit s **direct compatibility, quality, and potential for performance restoration** make it a worthwhile investment for those willing to invest time in the repair process. However, it may not be the best option for **minor issues, inexperienced DIYers, or users seeking a quick fix**.

---

### **Recommendation**

- Your carburetor is showing clear signs of wear (e.g., rough idle, stalling, poor acceleration, fuel leaks).

- You are comfortable with basic mechanical work or are willing to learn.

- You want a long-term solution rather than temporary fixes (e.g., carburetor cleaners or individual gaskets).

- You trust Moose Racing s reputation for quality and are okay with the time commitment.

- The issue is minor (e.g., a clogged jet or a single gasket). In this case, purchasing **individual replacement parts** (e.g., gaskets, seals, or jets) from a trusted supplier like **Moose Racing, Walmart, or Amazon** may be more cost-effective.

- You lack mechanical experience. In this scenario, **consulting a professional mechanic** or **watching detailed repair guides** (e.g., from YouTube or Polaris forums) before attempting the repair is advisable.

- You re unsure whether the carburetor is the root cause. **Diagnosing the problem first** (e.g., checking for fuel pressure issues, air filter clogs, or spark plug condition) ensures you re addressing the correct issue.

- **Research the exact model of your carburetor** (e.g., Marston or Walbro) to confirm compatibility, as some Trail Boss models may use slightly different carburetor types.

- **Compare prices** with other brands (e.g., **Walbro, Keihin, or stock Polaris replacement kits**) to ensure you re getting the best value.

- **Read user reviews** for the specific kit to gauge real-world experiences with installation and performance improvements.

**Final Verdict:** For most **1990-1993 Polaris Trail Boss 350L owners** with carburetor issues, the **Moose Racing repair kit is a solid, reliable option** provided the user is prepared for the repair process. For simpler or less experienced users, a **targeted approach (e.g., individual parts or professional help) may be more practical**.

Details:

Kits include all O-rings, gaskets, jets, needle, mixture screw, float bowl screws, valve needle and seat needle jet other pressed in jets are not included kit. Parts without fitment are to be assumed universal and may require vehicle modification. Kits include all of the necessary components to repair a carburetor. This is helpful if you are buying multiple items.

Brand: Moose Racing, model Number: 5912-M188402-ATV. Compatibility: Years: Make: model: Application: Notes: 1993 - 1993 Polaris Big Boss 350L 6x6, 1990 1993 Polaris Trail 2x4, 4X4. I need to exchange an item.

part #: 5912m188402 prices

• $35.30-$41.32

specifications carbthrotatv:

• for models: 4x4, Trail, Boss
• for makes: Polaris
• for years: 1990-1993
• brand: Moose Racing
• mpn: 5912-m188402-atv
• part type: Carburetor

returns carbthrotatv:

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

payments carbthrotatv:

• wallet: Apple-pay
• credit card: Discover
• other

offer carbthrotatv:

• quantity: 9
• availability: In Stock
• sold: 0
• started: April 21, 2026
• options: Ship-to-home

general carbthrotatv:

• ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Carburetors
• condition: New

seller carbthrotatv:

• city: Sparks, NV
• # reviews: 83498
• rating: 99.9%

shipping carbthrotatv:

• transit: 2-6 Days
• type: Fixed
• class: Standard
• service: Standard
• cost: $0.00

Moose Racing 5912-M188402 Is Similar To:

• 1050-0176 Moose Racing Magnetic Float Bowl Drain Nut For Keihin (35% similar) Shipping requires a street address : 58:58:49. Create a return label online on our chapati...(April 4th, 2018)
• Xf1050-0153 Moose Racing New Carb Spacer Yamaha Raptor Free Ship (33.5% similar) Part: XF1050-0153 prices...(March 19th, 2018)
• Moose Utility Carburetor For Polaris 1002-0080 (44.8% similar) Moose utility polaris UTV shiftier cable 0652-2406. Moose utility clutch cover drain plug 100-3121-PU. Sm seat lock for Yamaha 011-810. New condition...(July 2nd, 2022)
• Moose Utility Carburetor For Yamaha 1002-0127 (38% similar) Jet front sprocket 15T with factory rubber damper JTF1332.15RB. Pig engine guards black 9720N. New condition...(August 14th, 2022)
• Moose Utility Carburetor For Polaris 1002-0083 (44.8% similar) La choppers handlebar ape hanger 8-1/2INCH LA-7312-08. An excellent alternative to the expensive oem carburetors. New condition...(August 16th, 2022)
• Moose Utility Carburetor For Yamaha 1002-0124 (39.4% similar) TORC1 flex brake lever for KTM 6815-0205. Pig windscreen naked new gen tour clear for KTM 20461W. Arlene Bess oil pressure gauge kits for 99-13 twin cam deep cut 15-668. Byes ignition cover gasket SCG-41. New condition...(September 12th, 2022)
• Moose Racing 231909 Carburetor For Yamaha Yfm400f Big Bear 400 4x4 yfm400 2x4 (49.4% similar) Yamaha YFM400 big bear 400 2X4 2000 -2006. Yamaha YFM400F big bear 400 4X4 2000 -2006. Direct replacement complete carburetor. Moose carburetor for Yamaha YFM400F big bear 400 4X4/YFM400 2X4: fully assembled and ready to install using all the oem cables. An excellent alternative to the expensive ...(August 31st, 2023)
• Moose Utility 700-1562-pu Carburetor (33.1% similar) An excellent alternative to the expensive oem carburetors. Actual product may differ from the item shown in photograph. Fully assembled and ready to install using all the oem cables. Direct replacement complete carburetors. Photos are for reference only...(September 29th, 2023)
• Moose Utility 400-1239-pu Carburetor (33.1% similar) Fully assembled and ready to install using all the oem cables. An excellent alternative to the expensive oem carburetors. Photos are for reference only. Direct replacement complete carburetors. Actual product may differ from the item shown in photograph...(September 30th, 2023)
• Moose Utility 400-1220-pu Carburetor (33.1% similar) Actual product may differ from the item shown in photograph. Photos are for reference only. Direct replacement complete carburetors. Fully assembled and ready to install using all the oem cables. An excellent alternative to the expensive oem carburetors...(October 7th, 2023)
• Moose Utility 600-1118-pu Carburetor (34.6% similar) Photos are for reference only. Actual product may differ from the item shown in photograph. Fully assembled and ready to install using all the oem cables. Direct replacement complete carburetors. An excellent alternative to the expensive oem carburetors...(October 14th, 2023)