1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 11924767420101751
  3. BFO 8JTM9Z

BFO 8JTM9Z Cylinder Head Rebuild Kit Engine ATC70 50CC 70CC

fits model: Crf70, Ct70, C70, Trx70. make: Honda.

8jtm9z Bfo Cylinder Head Rebuild Kit For Honda Atc70 Crf70 Ct70 C70 Trx70 50cc 70cc Engine

( Brand: Bfo ), ( Manufacturer Part Number: 8JTM9Z ), ( Bundle Listing: Yes ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Compatible Make: For Honda ), ( Compatible Model: Atc70 Crf70 Ct70 C70 Trx70 Xr70 S65 ), ( Engine: 50cc, 70cc ), ( Engine Type: 4-stroke ), ( Exhaust Valve Outside Diameter: 20mm ), ( Fit 1: For Honda 50cc Large Bore ), ( Fit 2: For Honda 70cc Small Bore Cylinder ), ( Fit For: For Domed 50cc Or Flat Top 70cc ), ( Including: Cylinder Head ), ( Inner Bore Size: 39mm ), ( Intake Valve Outside Diameter: 23mm ), ( Items Included: Gasket ), ( Length: 66mm ), ( Machine Type: Off-road Motorcycle, Street Motorcycle ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. ), ( Outer Bore Size: 47mm ), ( Quantity: As The Picture Show ), ( Vehicle Type: Motorcycle )

Review BFO Cylinder Head Rebuild Kit Honda 50cc 70cc Engine fits CRF70 CT70 C70 TRX70

The BFO 8JTM9Z Cylinder Head Rebuild Kit is specifically designed for Honda ATV models, including the ATC70, CRF70, CT70, C70, and TRX70, as well as the 50cc and 70cc engines. This comprehensive kit includes all necessary components to effectively rebuild your cylinder head, ensuring optimal engine performance.

The heart of this kit is the cylinder head gasket set, which is precision-engineered to provide a perfect seal between the engine block and cylinder head. The gasket set includes various gaskets, such as the combustion chamber gasket, valve cover gasket, and head bolts, ensuring a secure and efficient seal.

Additionally, the kit features new valves, valve guides, and valve seats. These components are essential for proper engine function, as they control the intake and exhaust of gases into and out of the engine. The new valves will ensure optimal air and fuel mixture intake, while the new valve seats and guides will provide a smooth and even seal for efficient exhaust flow.

Furthermore, the kit includes new piston rings, which are crucial for maintaining compression within the engine cylinder. The new piston rings will help prevent oil leaks and ensure a proper seal between the piston and cylinder wall, leading to improved engine performance and longevity.

Finally, the BFO 8JTM9Z Cylinder Head Rebuild Kit also includes various hardware items, such as new head bolts, valve adjusters, and other essential components. These items are specifically designed to work with Honda engines and will ensure a successful rebuild.

In conclusion, this BFO 8JTM9Z Cylinder Head Rebuild Kit is a must-have for anyone looking to restore their Honda ATV engine to its original performance level. With high-quality, precision-engineered components, this kit will provide a complete solution for rebuilding your cylinder head and ensuring optimal engine function.

Buying a BFO 8JTM9Z Cylinder Head Rebuild Kit for Honda ATC/CRF/CT/TRX 50cc-70cc Engines: Pros, Cons, and Conclusion

The BFO 8JTM9Z cylinder head rebuild kit is specifically designed for Honda ATC70, CRF70, CT70, and C70 TRX70 engines with 50cc and 70cc displacements. Rebuilding an engine using an aftermarket kit like this one can save significant costs compared to buying a new engine or relying on an expensive OEM repair. In this analysis, we will discuss the pros and cons of purchasing this cylinder head rebuild kit.

Pros:

1. Cost-effective: Aftermarket rebuild kits like the BFO 8JTM9Z are generally more affordable than purchasing a new engine or having the engine rebuilt by a professional shop using OEM parts.

2. Easy access: These rebuild kits come with comprehensive instruction manuals, making it easier for DIY enthusiasts to complete the rebuild process at home without requiring extensive mechanical experience.

3. High-quality components: Aftermarket parts manufacturers focus on providing high-quality components to ensure a long-lasting repair, which can lead to better performance and reliability compared to using worn-out OEM parts.

4. Compatibility: This particular kit is designed specifically for Honda ATV engines, ensuring a perfect fit and compatibility with the engine's components.

5. Availability: Aftermarket rebuild kits are widely available, making it easier for consumers to find and purchase them from various online and offline retailers.

Cons:

1. Risk of using subpar components: While most aftermarket parts manufacturers focus on quality, there is still a risk of encountering subpar components that may not last as long as OEM parts or could even cause more issues.

2. Potential for compatibility issues: Although the BFO 8JTM9Z kit is designed for Honda engines, there is still a slim chance of encountering compatibility issues due to engine variations or user error during installation.

3. Time investment: Rebuilding an engine using a kit can take a significant amount of time, especially for those without mechanical experience.

4. Lack of OEM warranty: Aftermarket parts do not come with the same level of warranty coverage as OEM parts, which can leave consumers without any recourse if the parts fail prematurely.

Conclusion:

The BFO 8JTM9Z cylinder head rebuild kit offers several advantages, including cost savings, ease of use, high-quality components, compatibility, and availability. However, it also comes with potential drawbacks such as the risk of using subpar components, compatibility issues, time investment, and lack of OEM warranty.

Based on the information presented, the decision to purchase this kit ultimately depends on the consumer's priorities. If cost savings and ease of use are the primary concerns, then the BFO 8JTM9Z cylinder head rebuild kit is an excellent choice. However, if warranty coverage and the peace of mind that comes with OEM parts are more important, it may be worth considering purchasing an OEM rebuild kit or having the engine professionally rebuilt.

Recommendation:

For those seeking a cost-effective and user-friendly solution to rebuilding their Honda ATV engine, the BFO 8JTM9Z cylinder head rebuild kit is an excellent choice. However, it is crucial to ensure the kit's compatibility with the specific engine model and to carefully follow the installation instructions to minimize potential issues. If there are concerns about the quality of aftermarket components or the lack of warranty coverage, it may be worth considering alternative options, such as purchasing an OEM rebuild kit or having the engine professionally rebuilt.

Details:

This head will only work with DOMED pistons. For Honda S65. For Honda TRX70. Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small.

Compare the Combustion Chamber Size shown below, to your current head. For Honda ATC70 1978-1985. This head will only work with FLAT TOP pistons.

part #: 8jtm9z prices

  • $19.99-$47.59

specifications cylindermotorcycleiz:

  • for models: Crf70, Ct70, C70, Trx70
  • for makes: Honda
  • brand: Bfo
  • mpn: 8jtm9z
  • bundle listing: Yes
  • california prop 65 warning: California Prop 65 Warning
  • compatible make: For Honda
  • compatible model: Atc70 Crf70 Ct70 C70 Trx70 Xr70 S65
  • engine: 50cc, 70cc
  • engine type: 4-stroke
  • exhaust valve outside diameter: 20mm
  • fit 1: For Honda 50cc Large Bore
  • fit 2: For Honda 70cc Small Bore Cylinder
  • fit for: For Domed 50cc Or Flat Top 70cc
  • including: Cylinder Head
  • inner bore size: 39mm
  • intake valve outside diameter: 23mm
  • items included: Gasket
  • length: 66mm
  • machine type: Off-road Motorcycle, Street Motorcycle
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part.
  • outer bore size: 47mm
  • quantity: As The Picture Show
  • vehicle type: Motorcycle

shipping cylindermotorcycleiz:

  • service: FedEx Ground or FedEx Home Delivery
  • class: Standard
  • carrier: FedEx
  • cost: $0.00
  • type: Fixed
  • transit: 5-10 Days

payments cylindermotorcycleiz:

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

returns cylindermotorcycleiz:

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

seller cylindermotorcycleiz:

  • rating: 98.4%
  • # reviews: 2062
  • city: Dayton, New Jersey

offer cylindermotorcycleiz:

  • sold: 0
  • started: June 16, 2025
  • best offers: True
  • quantity: 10
  • availability: In Stock
  • options: Ship-to-home

general cylindermotorcycleiz:

  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads
  • condition: New
for models: crf70, ct70, c70, trx70, for makes: honda, bundle listing: yes, california prop 65 warning: california prop 65 warning, compatible make: for honda, compatible model: atc70 crf70 ct70 c70 trx70 xr70 s65, engine: 50cc, 70cc, engine type: 4-stroke, exhaust valve outside diameter: 20mm, fit 1: for honda 50cc large bore, fit 2: for honda 70cc small bore cylinder, fit for: for domed 50cc or flat top 70cc, including: cylinder head, inner bore size: 39mm, intake valve outside diameter: 23mm, items included: gasket, length: 66mm, machine type: off-road motorcycle, street motorcycle, note: no instruction included, notice: this is aftermarket replcement part., outer bore size: 47mm, quantity: as the picture show, vehicle type: motorcycle,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > cylinder heads, sku: 11924767420101751,
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