1. Motorcycle Carburetors Offers
  2. sku: 12044136362724813
  3. UNLIMITED 851801

PARTS UNLIMITED 851801 Single Carb Kit Keihin CDK40

851801 Parts Unlimited Pu Single Carb Primer Kit For Keihin Cdk40

( Manufacturer Part Number: 851801 ), ( Warranty Details: See Manufacturer )

Review PARTS UNLIMITED Pu Single Carb Primer Kit Keihin

Introducing the Unlimited 851801 Pu Single Carb Kit, specifically designed for the Keihin CDK40 carburetor. This kit is an excellent choice for motorcycle enthusiasts seeking to upgrade or restore their two-wheel machines.

The Pu Single Carb Kit comes with a high-quality, rebuilt Pu carburetor. Pu carburetors are renowned for their durability and performance, making them a popular choice among riders. This particular kit includes all the necessary components for a successful installation, ensuring a smooth and efficient fuel delivery system.

The kit includes the following parts:

1. Rebuilt Pu Carburetor: The heart of this kit, the rebuilt Pu carburetor comes fully reconditioned and ready to deliver optimal fuel mixture to your engine.

2. Intake Manifold: The intake manifold is meticulously designed to connect the carburetor to the engine, ensuring a perfect seal and efficient airflow.

3. Throttle Cable: The throttle cable allows the rider to control the fuel mixture and engine RPMs via the twist grip throttle.

4. Idle Mixture Screws: These screws regulate the fuel mixture during idle conditions, ensuring a stable and responsive engine.

5. Main Jet: The main jet determines the fuel flow rate for the engine under various operating conditions.

6. Needle Jet: The needle jet controls the fuel flow rate during partial throttle openings.

7. Pilot Jet: The pilot jet regulates the fuel mixture during idle and low-speed conditions.

8. Needle Valve: The needle valve controls the fuel mixture during mid-range engine speeds.

9. Floats: The floats maintain a consistent fuel level in the carburetor bowls.

10. Gaskets: The gaskets ensure a tight seal between the various components of the carburetor.

Installation of this kit is relatively straightforward for those with basic mechanical skills or the willingness to learn. The Unlimited 851801 Pu Single Carb Kit provides an affordable and effective solution for upgrading or restoring your Keihin CDK40 carburetor, ultimately enhancing your motorcycle's performance and reliability.

Buying an unlimited 851801 Pu single carb kit for a Keihin CKD40 carburetor comes with its own set of advantages and disadvantages. Let's examine each one in detail.

Advantages:

1. Improved Performance: This kit is designed to provide better fuel flow and atomization, resulting in improved engine performance. It can help increase horsepower and torque, leading to a smoother and more responsive ride.

2. Durability: The Pu material used in this kit is known for its durability and resistance to wear and tear. It can withstand high temperatures and harsh conditions, making it ideal for racing or high-performance applications.

3. Adjustability: The kit comes with adjustable jetting, allowing you to fine-tune the carburetor to your specific engine and fuel conditions. This can help improve fuel efficiency and reduce emissions.

4. OEM Replacement: This kit is a direct replacement for the OEM carburetor, making it a straightforward and hassle-free upgrade. It also retains the factory look and fit, making it a popular choice among enthusiasts.

Disadvantages:

1. Cost: The unlimited 851801 Pu single carb kit is more expensive than the stock carburetor. The cost of the kit, along with the cost of installation, can add up quickly.

2. Complexity: Installing the kit requires a certain level of mechanical expertise. It involves removing the old carburetor, installing the new one, and adjusting the jetting. This can be a daunting task for some enthusiasts.

3. Potential Issues: While the Pu material is known for its durability, it can also be more prone to issues such as cracks and leaks. Proper installation and maintenance are essential to avoid these problems.

Conclusion:

The unlimited 851801 Pu single carb kit for a Keihin CKD40 carburetor offers several advantages, including improved performance, durability, adjustability, and OEM replacement. However, it also comes with some disadvantages, such as cost, complexity, and potential issues.

If you are an experienced enthusiast looking for a high-performance upgrade, this kit may be worth considering. However, if you are new to carburetor tuning or have a limited budget, it may be a better idea to stick with the stock carburetor or consider other upgrades.

Recommendation:

If you are considering purchasing the unlimited 851801 Pu single carb kit for a Keihin CKD40 carburetor, it is essential to ensure that you have the necessary mechanical expertise to install and adjust the kit properly. It is also recommended to purchase the kit from a reputable supplier and to follow the manufacturer's instructions carefully to avoid any potential issues. Additionally, consider weighing the benefits and costs carefully to determine if the upgrade is worth the investment for your specific application.

part # 851801 prices

  • $30.60-$50.55

specifications iodacarb:

  • manufacturer part number: 851801
  • warranty details: See Manufacturer

returns iodacarb:

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

seller iodacarb:

  • # reviews: 723592
  • rating: 99.8%

general iodacarb:

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

shipping iodacarb:

  • transit: 3-9 Days
  • type: Fixed
  • class: Standard
  • service: Standard
  • cost: $0.00

payments iodacarb:

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

offer iodacarb:

  • quantity: 10
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
  • started: June 8, 2026
warranty details: see manufacturer, category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery > carburetors, sku: 12044136362724813,

Parts Unlimited 851801 Is Similar To:

iodacarb logo
5 offers $30.60–$50.55 USD
  • Offer #1: $43.08 price + free delivery = $43.08* total. Country/Region of Manufacture: United States. Manufacturer Part Number: PD820006.FREE SHIPPING
  • Offer #2: $50.55 price + free delivery = $50.55* total. PART TYPEDriveline Brakes Sprockets STYLE 2Single Carburetor.FREE SHIPPING
  • Offer #3: $30.60 price + free delivery = $30.60* total. Fits: Designed for watercraft with Keihin or Mikuni carburetors It includes all necessary hardware for installation.FREE SHIPPING
  • Offer #4: $36.05 price + $9.99 delivery = $46.04* total. Manufacturer Parts Unlimited MPN PD820005.+$9.99 shipping
  • Offer #5: $46.87 price + free delivery = $46.87* total. Style Keihin Single Carburetor MPN PD820006.FREE SHIPPING