TB PARTS TBW0939 Big Cylinder Race Head Carb Kit 88CC V1

( Brand: Tb Parts ), ( Manufacturer Part Number: TBW0939 ), ( Type: Cylinder Head )

Review TB PARTS Honda 88cc Big Bore Cylinder V1 Race Head And Carb Kit fits CT70 ATC 1970

Introducing the TB TFW0939 Honda CT70 88cc Big Cylinder V1 Race Head Carb Kit, designed specifically for the Honda CT70 ATV models with an 88cc big cylinder engine. This high-performance kit is engineered to deliver increased power and improved throttle response, making it an excellent choice for racers and enthusiasts seeking to enhance their off-road riding experience.

The TB TFW0939 kit includes a high-performance race head and a set of high-flow carburetors. The race head is CNC-machined from billet aluminum and features a high-performance combustion chamber design, large intake and exhaust ports, and a multi-angle valve job. This results in better engine breathing, increased power output, and improved engine efficiency.

The carburetors included in the kit are also high-flow units, designed to deliver more fuel to the engine for optimal performance. They feature adjustable main and pilot jets, allowing you to fine-tune the fuel mixture to your specific riding conditions. The carburetors also come with an adjustable throttle cable, enabling you to set the throttle response to your preference.

The TB TFW0939 Honda CT70 88cc Big Cylinder V1 Race Head Carb Kit is easy to install, with clear instructions included in the package. It is also designed to be compatible with the stock exhaust system, making it a plug-and-play upgrade for your ATV.

In summary, the TB TFW0939 Honda CT70 88cc Big Cylinder V1 Race Head Carb Kit is an excellent upgrade for any Honda CT70 ATV with an 88cc big cylinder engine. It delivers increased power, improved throttle response, and is easy to install, making it a must-have for any serious off-road rider.

Pros and Cons of buying a TB TBW0939 Honda CT70 88cc Big Cylinder V1 Race Head Carb Kit (ATC 70)

The TB TBW0939 Honda CT70 88cc Big Cylinder V1 Race Head Carb Kit is an aftermarket upgrade designed to enhance the performance of Honda's CT70 mini-bikes. This kit includes a larger displacement cylinder, race head, and carburetor. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this product.

A. Increased Power and Torque

The larger cylinder and race head enable the engine to produce more power and torque, resulting in improved acceleration and top speed.

B. Improved Engine Responsiveness

The carburetor included in the kit is specifically designed for high-performance applications, ensuring optimal fuel-air mixture and improved throttle response.

C. Enhanced Aesthetics

The kit enhances the visual appeal of the mini-bike, making it a popular choice among enthusiasts looking to customize their vehicles.

A. Higher Cost

The TB TBW0939 Honda CT70 88cc Big Cylinder V1 Race Head Carb Kit is a more expensive upgrade compared to other aftermarket parts.

B. Increased Complexity

The installation process of the kit can be complex, requiring additional tools and expertise, which might result in additional costs and time.

C. Potential Performance Variability

Due to the custom nature of the kit, performance may vary from bike to bike and rider to rider, requiring fine-tuning and adjustments.

The TB TBW0939 Honda CT70 88cc Big Cylinder V1 Race Head Carb Kit offers several advantages, including increased power and torque, improved engine responsiveness, and enhanced aesthetics. However, it comes with certain disadvantages, such as a higher cost, increased complexity, and potential performance variability.

If you are a serious Honda CT70 mini-bike enthusiast looking to significantly improve your vehicle's performance, the TB TBW0939 Honda CT70 88cc Big Cylinder V1 Race Head Carb Kit is an excellent choice. However, be prepared for the additional costs, complexity, and potential performance variability that come with this upgrade. It is recommended to thoroughly research the installation process and consult with experienced Honda CT70 mechanics or enthusiasts to ensure a successful installation and optimal performance.

Details:

Installation Note: It will save a lot of time and effort if the oil pump is installed while installing bore kit requires cylinder removal. TB Parts 88cc Big Bore kit Race Head and 20mm Carburetor Kit for all Honda CT70s ATC70's: - Lightweight aluminum cylinder with steel sleeve. TB parts V1 Race Head. High compression 52mm piston with rings, pin, clips.

Easily double your power and fun with this quality, yet economical bore kit. Does not include gaskets-order from TB Parts. Cast in mounts on cylinder for aftermarket skid plates. THIS IS A USED KIT, WAS INSTALLED IN ATC70 FOR AROUND 5HRS BEFORE IT BROKE TRANS.

Oversized cooling fins on cylinder for efficient heat dissipation. Below is the TB Parts.

part #: tbw0939 price

• $419.99

specifications cylindermotorcycleiz:

• for models: Ct70, Atc
• for makes: Honda
• for years: 1970
• brand: Tb Parts
• mpn: Tbw0939
• type: Cylinder Head

seller cylindermotorcycleiz:

• # reviews: 2767
• city: Milford, New Jersey
• rating: 100.0%

shipping cylindermotorcycleiz:

• transit: 3-6 Days
• carrier: UPS, FedEx
• type: Calculated
• service: UPS Ground, FedEx Ground / FedEx Home Delivery
• cost: $18.77
• class: Standard

returns cylindermotorcycleiz:

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

payments cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

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

general cylindermotorcycleiz:

• condition: Used
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads

Tb Parts TBW0939 Is Similar To:

• 0949-0273-0189-0251-0186 Trail Bikes Honda Years To Tb Race Head Upgrade Kit (36.5% similar) ...(May 17th, 2018)
• Tbw1141 Tb Parts Black Billet (30.4% similar) Tb Parts black billet head cover set - Changchun heads ZS155 YX160 TBW1141 replacement for the TBW0598 race meets or exceeds oem specifications...(July 21st, 2017)
• Tbw9040 Tb Parts T Bolt (28.3% similar) ...(February 10th, 2018)
• Tb Parts 0380 Trailbikes Honda Crf50 Crf70 And Others Race Head Valve Kit 88cc Big Bore (41.2% similar) Comes with everything shown in the picture. Tb valve kit, replacement: replacement valve kit for the Parts TBW0385 v1 race head with 25/22MM valves...(January 10th, 2025)
• Tbparts Tbw0821 Tb Parts V2 Race Head Hardware Kit (51.1% similar) Keystone cycle Parts. Kit includes nuts, bolts, washers, dowels, cam cir clip, plate and Allen keys Tb Parts v2 race head hardware kit: kit for honda race head...(February 5th, 2025)
• Tbparts Tbw0891 Tb Parts Cylinder 55mm (41.3% similar) 14 rim strip. Fits efi CRF110S also - now has port for temperature sensor. BR cable guide. Tb Parts cylinder, 55MM: replacement 55MM aluminum cylinder with steel sleeve for 132CC big bore kit 2013 thru 2024 CRF110 model's. Keystone cycle Parts...(February 5th, 2025)
• Tb Parts Tbw9017 Kawasaki Klx110 L V2 Race Head Available Soon Message For Info Only (40.7% similar) Part #: Tb Parts TBW9017 for sale...(April 2nd, 2025)
• Tb Parts 213056 For Honda Crf100 120cc Big Bore Engine Kit Piston Cylinder Crf 100 Head (55.3% similar) Item mpn: 213056. This listing is for big bore engine kit piston cylinder Cerf 100 head for honda CRF100 120CC kit includes; 1-58MM cylinder piston 1-TOP-END gasket set bolt-on, no case boring required brand new condition please refer to photo more details as they are the best part of. Item brand: ...(September 22nd, 2025)
• Tbolt Tbw0986 Tb Parts 143cc Big Bore Kit 60mm Cylinder Piston Kawasaki Klx110 All Models (44.2% similar) Condition: the pictures are the best objective indicator of an items condition. Very little time on kit. Removed from a 2011 Kawasaki KLX110. Please send the item in packaging it was shipped. Clean, ready to install. Almost a ll used Parts will show some degree of wear such as scratches. Shipping ...(November 13th, 2025)