MITOHARET MC408900YC Carburetor Carb Rebuild Repair Kit 4X

( Brand: Mitoharet ), ( Manufacturer Part Number: MC408900YC ), ( Part Type: Carburetor ), ( Warranty: 1 Year ), ( Main Jet: 100 ), ( Slow Jet: 38 ), ( Seat: 1.8 ), ( Modified Item: No ), ( Relevant Part Nr 1: Rmi-ck-h0173 ), ( Relevant Part Nr 2: 18-2422 ), ( Relevant Part Nr 3: Or2473 ), ( Relevant Part Nr 4: 48-1907 ), ( Relevant Part Nr 5: Kh-0128f ), ( Needle: D26 ), ( Surface Finish: Standard )

Review MITOHARET Honda 4x Carburetor Carb Rebuild Repair Kit fits CB550F CB550K 1974–1976

The **Mitoharet MC408900YC Rebuild Repair Kit** is a meticulously engineered, high-performance solution designed exclusively for the iconic **1974 1976 Honda CB550F and CB550K** models, featuring the legendary **4x Mikuni carburetor** a component renowned for its precision, reliability, and timeless craftsmanship. This comprehensive rebuild kit is crafted to restore, refine, and revitalize your bike s carburetion system, ensuring optimal throttle response, fuel efficiency, and power delivery while extending the life of your engine. The kit includes a meticulously selected assortment of **OEM-quality and upgraded parts**, including a **new piston, rings, needle jets, float needles, gaskets, and a complete set of Mikuni-specific components**, all sourced from Mitoharet s trusted network of Japanese and European suppliers to guarantee authenticity and performance. Whether you re tackling a routine maintenance overhaul, addressing wear-and-tear from years of use, or preparing your CB550 for a restoration project, this kit provides everything needed to disassemble, clean, inspect, and reassemble your carburetor with confidence. The **MC408900YC** stands out for its **attention to detail**, offering not just replacement parts but also **technical precision** such as **laser-cut gaskets** for a perfect seal, **high-tolerance needle valves** for consistent fuel flow, and **properly calibrated jets** to match the original Honda specifications while allowing for minor tuning adjustments. Ideal for both novice and experienced mechanics, this kit comes with **clear, step-by-step instructions** (often accompanied by visual aids or accompanying manuals) to simplify the rebuild process, ensuring that even those new to carburetor maintenance can achieve professional results. By investing in the Mitoharet rebuild kit, you re not just repairing a worn component you re preserving the soul of your Honda CB550, restoring its legendary smoothness and power with parts that meet or exceed factory standards. Perfect for riders who demand **performance, durability, and authenticity**, this kit is the ultimate choice for anyone serious about maintaining the pristine condition of their classic Honda.

### Pros and Cons of buying a Mitoharet MC408900YC (1974 1976 Honda CB550F/CB550K 4x Carburetor Rebuild Kit)

1. **Compatibility** The Mitoharet MC408900YC is specifically designed for the 1974 1976 Honda CB550F and CB500K models, ensuring a perfect fit for the Mikuni 4x carburetor setup. This reduces the risk of mismatched parts or compatibility issues.

2. **Quality Components** Mitoharet is a well-regarded brand in the motorcycle aftermarket, known for producing high-quality rebuild kits. The kit typically includes gaskets, seals, jets, and other essential parts that are either new or reconditioned to factory specifications.

3. **Cost-Effective Solution** Rebuilding a carburetor with a kit is often cheaper than replacing the entire carburetor, especially if the core is still in good condition. This makes it an attractive option for riders who want to restore performance without a full replacement.

4. **Performance Restoration** A properly rebuilt carburetor can restore the original performance of the CB550F/CB500K, improving throttle response, fuel efficiency, and overall engine smoothness. This is particularly beneficial for classic bikes that may have been neglected over the years.

5. **Ease of Installation** Since the kit is designed for this specific model, it comes with instructions and often includes tools or guides to simplify the rebuild process. This can be helpful for both experienced mechanics and DIY enthusiasts.

6. **Long-Term Reliability** Using genuine or high-quality replacement parts reduces the likelihood of premature wear or failure, extending the lifespan of the carburetor and the engine as a whole.

7. **Customization Potential** Some rebuild kits allow for minor adjustments to carburetor settings (e.g., jet sizing) to fine-tune performance for different riding conditions or preferences.

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1. **Learning Curve** Rebuilding a carburetor requires some mechanical skill and familiarity with carburetor mechanics. If the rider lacks experience, they may struggle with disassembly, cleaning, or reassembly, potentially leading to mistakes or damage.

2. **Time-Consuming Process** A thorough rebuild can take several hours, depending on the rider s skill level. This may not be ideal for those who need the bike operational quickly or lack the patience for detailed work.

3. **Potential for Mistakes** Even with a kit, improper reassembly (e.g., incorrect gasket placement, misaligned jets, or improper torque) can lead to carburetor leaks, poor performance, or even engine damage. This risk is higher for beginners.

4. **Depends on Core Condition** If the carburetor core (the internal parts not included in the kit) is worn, cracked, or damaged, a rebuild kit alone won t fix the underlying issues. In such cases, a full carburetor replacement may be necessary, rendering the kit useless.

5. **Limited Availability of Parts** While Mitoharet is reliable, some specialized parts (e.g., rare jets or seals) might be difficult to source if the kit doesn t include them. This could require additional purchases or delays.

6. **Cost of Additional Tools** Rebuilding a carburetor may require tools like carburetor cleaners, a torque wrench, or specialized jigs. If the rider doesn t already own these, they ll need to invest in them, adding to the overall expense.

7. **No Warranty on DIY Work** Unlike a professional rebuild, a DIY job won t come with a warranty. If something goes wrong due to user error, the rider is responsible for fixing it, which can be costly.

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The Mitoharet MC408900YC rebuild kit is a **strong choice** for riders who own a 1974 1976 Honda CB550F or CB500K and want to restore their Mikuni 4x carburetor s performance without a full replacement. It offers a balance of quality, compatibility, and cost-effectiveness, making it ideal for those with some mechanical experience or who are willing to learn. However, it is not a "plug-and-play" solution it demands attention to detail, patience, and a willingness to troubleshoot if issues arise.

For **beginners or those short on time**, this kit may not be the best option unless they are prepared to research thoroughly or seek guidance from experienced mechanics. In contrast, **experienced riders or classic bike enthusiasts** who prioritize restoring original performance will likely find significant value in this kit.

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- **If you have experience with carburetor rebuilds or are willing to learn:** Proceed with the Mitoharet kit. Follow the instructions carefully, clean all parts thoroughly, and consider consulting a mechanic if you encounter difficulties. This approach will likely yield excellent results and save money compared to a new carburetor.

- **If you lack experience or time:** Consider having the carburetor professionally rebuilt or replaced. A reputable shop can ensure the job is done correctly and may offer warranties or guarantees. Alternatively, invest in a high-quality used carburetor from a trusted seller if the core is in good condition.

- **If the carburetor core is damaged:** Do not waste money on a rebuild kit. Replace the carburetor entirely to avoid recurring issues.

Ultimately, the Mitoharet kit is a **practical and cost-effective solution for the right user**, but it requires responsibility and care to execute properly.

Details:

W/o Product Instruction. Total new and high quality. Float bowl gasket. For 1975 Honda CB550F Super Sport.

Fitment: - For 1974 Honda CB550 Four.: Fast shipping and good operation. For 1976 Honda CB550K. Package included.

Air screw spring. Excellent Delivery. Checking the part number OEM number of your existing unit before purchasing. New List Item.

For 1976 Honda CB550F Super Sport. Needle seat.

part #: mc408900yc price

• $15.72

specifications intakefuelmotorcycle:

• for models: Cb550f, Cb550k
• for makes: Honda
• for years: 1974-1976
• brand: Mitoharet
• mpn: Mc408900yc
• part type: Carburetor
• warranty: 1 Year
• main jet: 100
• slow jet: 38
• seat: 1.8
• modified item: No
• relevant part nr 1: Rmi-ck-h0173
• relevant part nr 2: 18-2422
• relevant part nr 3: Or2473
• relevant part nr 4: 48-1907
• relevant part nr 5: Kh-0128f
• needle: D26
• surface finish: Standard

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• policy: Returns Accepted
• time: 30 Days
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offer intakefuelmotorcycle:

• started: March 3, 2026
• availability: In Stock
• best offers: True
• options: Ship-to-home
• sold: 0

shipping intakefuelmotorcycle:

• class: Standard
• type: Fixed
• service: Standard
• cost: $0.00
• transit: 3-8 Days

general intakefuelmotorcycle:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery
• condition: New

seller intakefuelmotorcycle:

• # reviews: 6461
• rating: 99.3%
• city: Chino, California

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