HONDA 16011-329-004 Carburetor Float Valve Carb Needle Set

( Manufacturer Part Number: 16011-329-004 ), ( Part Type: Valve Carburetor ), ( Seat: 1.8 ), ( Placement On Vehicle: Front ), ( Unit Type: Unit ), ( Manufacturer Warranty: No ), ( Color: Gold ), ( Relevant Carb Model: Keihin ), ( Compatible Model: Cb350f Four ), ( Material: Brass ), ( Vintage Part: Yes ), ( California Prop 65 Warning: Caution A Manufactured Item ), ( Compatible Year: 1973 1974 ), ( Country Of Origin: Japan )

Review HONDA Carburetor Float Valve Carb Needle Set fits CB350F CB400F CB500 CB550

The **Honda 16011-329-004 Carburetor Float Valve and Carb Needle Set** is a precision-engineered replacement assembly designed exclusively for Honda s classic air-cooled CB350F, CB400F, CB500, and CB550F motorcycles, ensuring optimal performance and fuel efficiency for these iconic bikes. This high-quality set includes a **genuine OEM float valve assembly**, complete with a durable brass float, a sealed rubber gasket, and a precision-machined needle and seat assembly, all crafted to Honda s exacting specifications. The float valve regulates fuel level within the carburetor s float bowl, preventing overflow while maintaining a consistent fuel supply to the engine, which is critical for smooth idling, throttle response, and overall engine health. The **carb needle**, a finely balanced jet with a tapered tip, works in tandem with the float valve to meter fuel precisely, adapting to different riding conditions whether cruising at highway speeds or navigating tight city streets. This set is ideal for riders seeking to restore factory performance after wear or damage, as well as those looking to fine-tune their bike s fuel delivery for better throttle response, reduced fuel consumption, or improved cold-start reliability. Built to withstand the demands of high-performance riding, this replacement part is a direct-fit solution that eliminates the guesswork of aftermarket alternatives, ensuring compatibility and longevity. Whether restoring a vintage CB500 or maintaining a well-loved CB400F, this float valve and needle set is a must-have for any Honda enthusiast prioritizing performance, durability, and authenticity.

### **Pros and Cons of buying a Honda 16011-329-004 Carburetor Float Valve & Needle Set for CB350F, CB400F, CB500, CB550**

This part set includes a **float valve** and **carburetor needle** designed for Honda s **CV carburetors** found in the **CB350F, CB400F, CB500, and CB550** models. Below is a detailed breakdown of its advantages and drawbacks.

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### **Pros**

1. **OEM Quality and Reliability**

- Honda s original equipment parts are engineered to strict standards, ensuring proper fitment and performance. This reduces the risk of leaks, poor fuel delivery, or engine misfires compared to aftermarket knockoffs.

2. **Direct Fitment for Common Honda Models**

- The part is designed specifically for the **CV carburetor** used in the **CB350F, CB400F, CB500, and CB550**, making it a straightforward replacement without modifications. This eliminates guesswork when selecting parts.

3. **Prevents Common Carburetor Issues**

- A failing **float valve** can cause **flooding** (excess fuel in the cylinder), while a worn **needle jet** can lead to **lean running, hesitation, or poor acceleration**. Replacing these components restores proper fuel metering, improving throttle response and fuel efficiency.

4. **Cost-Effective for Maintenance**

- While not the cheapest option, this part is reasonably priced compared to full carburetor rebuilds or replacements. It extends the life of an otherwise functional carburetor, saving money in the long run.

5. **Easy to Install**

- The float valve and needle are simple to remove and replace, requiring basic tools (screwdriver, pliers, and carburetor cleaner). No special skills or equipment are needed, making it a DIY-friendly repair.

6. **Improves Engine Performance**

- A properly functioning carburetor ensures **smooth idling, better cold starts, and consistent power delivery**. If your bike has been running rough or stalling, this part set can restore optimal performance.

7. **Widely Available**

- As an OEM part, it is stocked by most **Honda dealers, motorcycle repair shops, and online retailers** (e.g., RockAuto, Amazon, eBay). Spare parts are easy to source, even for older models.

8. **Prevents Long-Term Damage**

- Ignoring carburetor issues can lead to **carbon buildup, fuel pump failure, or even engine damage** from prolonged lean conditions. Replacing these components early prevents more expensive repairs.

---

### **Cons**

1. **Potential for Counterfeit Parts**

- Since this is an older model part, there is a risk of purchasing **fake or low-quality replicas** from untrusted sellers. Counterfeit parts may not fit correctly, leak, or fail prematurely. Always buy from **authorized dealers or reputable online retailers** with return policies.

2. **Limited Longevity in Harsh Conditions**

- While OEM parts are durable, they are not indestructible. In **extreme temperatures, heavy use, or with poor fuel quality**, the float valve or needle may wear out faster than expected. Regular carburetor maintenance (cleaning, adjusting jets) is still necessary.

3. **May Require Additional Adjustments**

- After installation, you may need to **adjust the float height** or **fine-tune the needle jet** for optimal performance. This requires some familiarity with carburetor tuning, though it is a straightforward process with the right guides.

4. **Not a Permanent Fix for All Issues**

- If the **carburetor body is damaged, the jets are clogged, or the throttle cable is worn**, replacing just the float valve and needle will not fully resolve performance problems. A **full carburetor rebuild** may be needed in some cases.

5. **Mixed Reviews on Fitment for Some Models**

- While this part is designed for the **CB350F/CB400F/CB500/CB550**, there have been occasional reports of **minor fitment issues** (e.g., slight misalignment in the float bowl). Always verify compatibility with your exact model year before purchasing.

6. **Requires Basic Mechanical Knowledge**

- While the installation is simple, **disassembling the carburetor improperly** (e.g., stripping screws, damaging seals) can complicate the process. Beginners may need guidance from a mechanic or detailed instructions.

7. **Price May Be Higher Than Aftermarket Alternatives**

- Some aftermarket **float valves and needle sets** (e.g., from **Keihin, Mikuni, or third-party brands**) may offer similar performance at a lower cost. However, these alternatives may not match Honda s reliability or longevity.

---

### **Conclusion**

The **Honda 16011-329-004 float valve and needle set** is a **reliable, direct-fit solution** for restoring proper carburetor function in the **CB350F, CB400F, CB500, and CB550**. It is ideal for **DIYers who want an OEM-quality part** without the expense of a full rebuild. The benefits **improved performance, preventative maintenance, and ease of installation** outweigh the minor drawbacks, provided the part is **authentic and properly installed**.

However, if you are **unsure about carburetor tuning** or suspect **deeper issues** (e.g., clogged jets, vacuum leaks), consulting a mechanic before purchase may be wise. For those on a tight budget, **aftermarket options** could be considered, but they may not offer the same durability.

---

### **Final Recommendation**

You need a **quick, reliable fix** for carburetor-related issues (flooding, lean running, rough idling).

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

You are comfortable with **basic carburetor maintenance** and have access to proper tools.

You want to **extend the life of your carburetor** without a full rebuild.

You suspect **other carburetor components (jets, seals, diaphragm) are failing**.

You are purchasing from an **untrusted seller** (risk of counterfeit parts).

You lack confidence in **installation or tuning** the carburetor afterward.

- **Verify model compatibility** (some CB550 variants may require a slightly different part).

- **Clean the carburetor thoroughly** before installation to remove old fuel deposits.

- **Adjust the float height** according to Honda s specifications (typically **18.5 19.5mm** for these models).

- **Test ride after installation** and fine-tune the needle jet if needed.

For most riders, this part set is a **solid, cost-effective choice** that delivers noticeable improvements in bike performance. If in doubt, a **local Honda dealer or motorcycle shop** can confirm fitment and provide installation assistance.

Details:

Box working Float needle and seat Hagar Bx#5 item#Needle seat CB350F Honda brand Set 4 Slightly tarnished from years of storage NOS New As pictured.

part #: 16011329004 prices

• $29.99-$235.00

specifications intakefuelmotorcycle:

• for models: Cb350f, Cb400f, Cb500, Cb550
• for makes: Honda
• mpn: 16011-329-004
• part type: Valve Carburetor
• seat: 1.8
• placement on vehicle: Front
• unit type: Unit
• manufacturer warranty: No
• color: Gold
• relevant carb model: Keihin
• compatible model: Cb350f Four
• material: Brass
• vintage part: Yes
• california prop 65 warning: Caution A Manufactured Item
• compatible year: 1973 1974
• country of origin: Japan

general intakefuelmotorcycle:

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

returns intakefuelmotorcycle:

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

offer intakefuelmotorcycle:

• started: March 24, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1

shipping intakefuelmotorcycle:

• transit: 29-43 Days
• service: USPS Ground Advantage
• cost: $8.95
• type: Fixed
• class: Standard
• carrier: USPS

seller intakefuelmotorcycle:

• # reviews: 4908
• rating: 99.6%
• city: Seattle, Washington

payments intakefuelmotorcycle:

• wallet: Google-pay
• other
• credit card: Diners-club

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