Convert a Bike from Self-Start to Kick-Start: Is It Possible and How?

Convert a Bike from Self-Start to Kick-Start: Is It Possible and How?

Most motorcycles today are equipped with self-start features that eliminate the need for a kick-start mechanism. However, there might be situations where one prefers a traditional kick-start method. This article explores the feasibility of converting a bike from a self-start to a kick-start setup and provides a detailed process for those who might be interested.

Understanding Self-Start vs. Kick-Start

A bike with a self-start feature uses an electric starter motor to crank the engine. This modern technology significantly simplifies starting the engine, offering convenience and ease of use. In contrast, a kick-start involves manually turning the engine using a lever attached to the rear wheel. This method is a throwback to the days before electrical starting systems.

Is Conversion Feasible?

In general, converting a bike from a self-start to a kick-start is possible but comes with challenges. Modern motorcycles are engineered with complex systems, making it impractical to retrofit a kick-start mechanism without major changes to the transmission and overall engine configuration.

One might wonder why such a conversion would be attempted. Reasons can include personal preferences, maintaining a classic or vintage motorcycle, or reducing reliance on electricity for starting the bike. However, the process of conversion is not straightforward due to the intricate nature of modern motorcycle designs.

The Conversion Process

Converting a bike from self-start to kick-start involves several steps, starting with removing the existing starter motor and replacing it with a kick-start mechanism. The process can be broken down as follows:

1. Preparation and Safety

Ensure the bike is off and the fuel tank is empty to prevent any accidents. Remove the electrical components related to the starter motor to avoid electrical interference during the conversion.

2. Removal of Self-Start System

Identify and isolate the starter motor and associated wiring. Disconnect the electrical connections. Remove the starter motor and starter relay from the bike.

3. Installation of Kick-Start Mechanism

Choose an appropriate kick-start mechanism that fits your motorcycle. This will require measuring and adapting the gear ratio and mounting points. Install the kick-start lever and bracket at the rear wheel. This typically involves drilling and attaching the new components to the existing frame. Connect the kick-start linkage to the engine. This usually involves a chain, cable, or a pulley system to transmit the rotational force.

4. Transmission and Clutch Adjustments

Modifying the transmission system to accommodate the new kick-start mechanism may require adjusting the clutch and gears. Ensure all components work smoothly and efficiently. Test the new setup to ensure the clutch engages properly and the engine starts without any unusual noises or vibrations.

5. Final Checks and Finishing Touches

Perform a road test to ensure the kick-start mechanism is functioning correctly and safely. Reconnect any electrical components and make sure the system is secure. Conduct a full inspection to ensure nothing has been missed or was done incorrectly during the conversion.

Challenges and Considerations

Converting a bike from a self-start to a kick-start is a complex process that requires significant mechanical knowledge and skills. Major challenges include:

Compatibility issues: Modern motorcycles are highly engineered, and retrofitting a kick-start system may not be compatible with the existing electrical and mechanical systems. Space limitations: Some motorcycles have limited space for installation, especially in the transmission and frame areas. Cost: Custom conversion kits and labor costs can add up, making the conversion less economical for routine maintenance. Durability and reliability: The success of the conversion depends on the quality and reliability of the components used.

Expert Assistance and Professional Shops

Given the technical complexity of the conversion, it is recommended to seek assistance from professional motorcycle shops or experienced DIY enthusiasts. Professional shops have the tools, expertise, and experience to handle such conversions safely and effectively.

Bottom line, while converting a motorcycle from self-start to kick-start is possible, it comes with significant challenges and is a project best left to those with the right knowledge and tools.