1. Motorcycle & Scooter Starter Motors Parts
  2. sku: 8153356681809793
  3. CALTRIC RK138

CALTRIC RK138 Starter Kit Sport Engine 736CC 748CC

fits model: Cb750f. make: Honda. year: 1975–1982.

Rk138 Caltric Starter Kit For Honda Cb750f Super Sport 736cc 748cc Engine 1975-1982

( Brand: Caltric ), ( Manufacturer Part Number: RK138 ), ( Manufacturer Warranty: 3 Months ), ( Country Of Origin: China ), ( California Prop 65 Warning: Proposition 65 Warning For California Consumers. ), ( Type: Starter Kit ), ( Vintage Part: No )

Review CALTRIC Starter Kit For Honda Super Sport 736cc 748cc Engine fits CB750F 1975–1982

Caltrics RK138 Starter Kit for Honda CB750F Sport 736cc-748cc Engine (1975-1982)

Description:

The Caltrics RK138 Starter Kit is specifically designed for Honda CB750F Sport motorcycles equipped with 736cc or 748cc engines, manufactured between 1975 and 1982. This starter kit is an excellent choice for riders seeking to revive their vintage motorcycle or upgrade its starting system.

The Caltrics RK138 Starter Kit includes a high-performance starter motor and a solenoid. The starter motor is engineered with a robust construction, featuring a durable cast aluminum housing and a high-torque armature. It boasts a powerful output of approximately 1.4 horsepower and 3.3 ft-lbs of torque, ensuring a quick and reliable cranking experience.

The solenoid in this kit is designed for easy installation and seamless integration with your motorcycle's existing electrical system. It is equipped with a heavy-duty contactor that can handle the demanding requirements of your Honda CB750F Sport engine. Additionally, the solenoid comes with a built-in bypass diode, which prevents any potential electrical backfiring and ensures a safer starting process.

This starter kit is also notable for its ease of installation. The kit comes with a comprehensive set of instructions, making the installation process straightforward for most DIY enthusiasts. Moreover, the Caltrics RK138 Starter Kit is designed to be a direct replacement for the OEM starter, ensuring a hassle-free upgrade experience.

In summary, the Caltrics RK138 Starter Kit is an excellent investment for Honda CB750F Sport motorcycle owners looking to improve their starting system's reliability and performance. With its robust construction, high power output, and easy installation, this starter kit is an ideal solution for riders seeking to breathe new life into their classic motorbike.

Pros and Cons of buying a Caltrics RK138 Starter Kit for Honda CB750F Sport (1975-1982)

Introduction:

The Caltrics RK138 starter kit is a popular aftermarket solution for replacing the original starter motor on Honda CB750F Sport bikes manufactured between 1975 and 1982. This starter kit offers several advantages over the OEM part. In this analysis, we will discuss the key pros and cons to help you make an informed decision.

Pros:

1. Improved Performance: The Caltrics RK138 starter kit features a high-torque motor, which makes the starter turn faster. This results in a quicker and more efficient cranking process, allowing the engine to start more easily, especially in cold weather conditions.

2. Compact Design: The Caltrics RK138 starter is more compact than the OEM starter, making it easier to install and reducing the overall weight of the motorcycle.

3. Better Build Quality: The Caltrics starter kit is known for its robust design and better build quality. It is constructed with high-quality materials, ensuring durability and reliability.

4. Cost-Effective: The Caltrics RK138 starter kit is often more affordable than the OEM starter, making it an attractive alternative for budget-conscious consumers.

5. Easy Installation: The Caltrics RK138 starter kit comes with a complete wiring harness, making the installation process simpler and more straightforward.

Cons:

1. Compatibility: While the Caltrics RK138 starter kit is compatible with various Honda models, it may not fit all CB750F Sports exactly the same. Installing it may require some modifications, such as drilling new mounting holes or modifying the clutch cover.

2. Noise: Some users have reported that the Caltrics starter kit is louder than the OEM starter. This could be due to the higher-torque motor or the different design.

3. Power Consumption: The Caltrics RK138 starter motor consumes more power than the OEM starter, which could put additional strain on the charging system.

Conclusion:

The Caltrics RK138 starter kit offers several advantages, including improved performance, compact design, better build quality, cost-effectiveness, and easy installation. However, it also comes with some disadvantages, such as potential compatibility issues, increased noise, and higher power consumption. Ultimately, the decision to buy the Caltrics RK138 starter kit depends on your priorities and your motorcycle's specific requirements. If you value performance and ease of use, the Caltrics starter kit may be the right choice for you. On the other hand, if you prioritize quiet operation and minimal modifications, you might be better off sticking with the OEM starter.

Recommendation:

If you are considering purchasing the Caltrics RK138 starter kit for your Honda CB750F Sport, be sure to carefully evaluate your needs and expectations. Consider the pros and cons discussed above, as well as any additional factors that may be unique to your bike. Consulting with a knowledgeable mechanic or Honda specialist can also help you make an informed decision. Ultimately, the Caltrics RK138 starter kit can be an excellent investment for those seeking improved performance, ease of use, and cost savings. However, it is essential to weigh the potential benefits against the potential drawbacks to ensure that it is the best choice for your motorcycle.

Details:

CB750F SUPER SPORT 736cc ENGINE 1975-1978. CB750F SUPER SPORT 748cc ENGINE 1979-1982.

specifications scostarters:

  • for models: Cb750f
  • for makes: Honda
  • for years: 1975-1982
  • brand: Caltric
  • mpn: Rk138
  • manufacturer warranty: 3 Months
  • country of origin: China
  • california prop 65 warning: Proposition 65 Warning For California Consumers.
  • type: Starter Kit
  • vintage part: No

seller scostarters:

  • city: Corona, New York
  • # reviews: 46
  • rating: 96.0%

payments scostarters:

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

general scostarters:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Starter Motors

returns scostarters:

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

offer scostarters:

  • quantity: 1
  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • started: May 3, 2026

shipping scostarters:

  • cost: $0.00
  • type: Fixed
  • service: USPS Ground Advantage
  • transit: 4-10 Days
  • carrier: USPS
  • class: Standard
for models: cb750f, for makes: honda, for years: 1975-1982, manufacturer warranty: 3 months, country of origin: china, california prop 65 warning: proposition 65 warning for california consumers., type: starter kit, vintage part: no,
category: motorcycle parts > motorcycle scooter parts accessories > electrical ignition components > starter, sku: 8153356681809793,

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