How to Put an Electric Start on a Dirt Bike: Bolt-On Kit Install Guide

For many dirt bike enthusiasts, the convenience of an electric start can dramatically improve the riding experience. No more kick-start struggles or dealing with uneven terrain before starting. Installing an electric start is achievable with the right bolt-on kit and proper understanding of the installation process.

This guide explores how to put an electric start on a dirt bike, including required tools, safety precautions, step-by-step instructions, and tips for both beginners and experienced riders. We also address common questions like can you put electric start on a dirt bike and whether it’s feasible on most models.

Understanding Electric Start Kits

Electric start kits are designed to retrofit a dirt bike with a motorized starting system:

• Components: Starter motor, wiring harness, battery, solenoid, and starter button
• Compatibility: Most bolt-on kits work with a range of dirt bike engines, typically 50cc–250cc
• Power Source: Usually a 12V lithium-ion or lead-acid battery to provide sufficient current for ignition

By choosing a compatible kit, you can add electric start functionality without major engine modifications.

Required Tools and Materials

Before starting the installation, gather these tools and materials:

• Socket wrench set and screwdrivers
• Torque wrench for precise bolt tightening
• Bolt-on electric start kit compatible with your dirt bike
• Wiring connectors and zip ties
• Battery (if not included in the kit)
• Safety gear: gloves and eye protection

Preparation ensures a smooth installation and prevents accidental damage.

Pre-Installation Safety Checks

Before working on your bike:

• Disconnect the dirt bike battery to avoid electrical shorts
• Ensure the bike is on a stable stand or lift
• Verify the engine is cool to prevent burns or accidents
• Read the electric start kit instructions carefully

Safety checks reduce risk of injury and protect both the bike and electrical components.

Removing the Kickstart Assembly (If Present)

Many dirt bikes already have a kickstart mechanism:

• Remove the existing kickstarter carefully
• Inspect the engine casing for damage or wear
• Keep bolts and washers in a labeled container for reuse

This step prepares the bike for integrating the starter motor without interference.

Installing the Starter Motor

Follow these steps for proper starter motor installation:

1. Locate the mounting point: Usually near the engine crankcase or flywheel
2. Position the starter motor: Align it with the crankshaft or starter gear
3. Bolt securely: Use the included bolts and torque according to manufacturer specifications
4. Check gear mesh: Ensure proper engagement with the flywheel without binding

Proper alignment prevents premature wear and ensures smooth starting.

Wiring the Electric Start

Electrical connections are critical for successful operation:

• Connect the starter motor to the solenoid: Follow the kit wiring diagram
• Connect the solenoid to the battery: Use secure connectors and avoid loose wires
• Install starter button: Mount on handlebars for easy access
• Test circuit with bike off: Ensure no shorts or incorrect connections

Neat wiring with zip ties prevents tangling and interference with moving parts.

Battery Installation and Testing

A strong battery is essential:

• Install the battery in a secure, vibration-resistant location
• Connect positive and negative terminals carefully
• Turn the ignition on and press the starter button
• The engine should turn over smoothly; if not, double-check wiring and connections

Test multiple times before riding to confirm reliability.

Post-Installation Checks

After installation:

• Inspect for loose bolts, wiring, or connections
• Ensure starter motor and gear are properly aligned
• Confirm throttle and brake operation are unaffected
• Check for unusual noises or excessive heat during startup

Regular post-installation checks maintain performance and safety.

Benefits of Electric Start on a Dirt Bike

Adding an electric start offers multiple advantages:

• Convenience: Quick starting without kick-start effort
• Safety: Reduces the risk of falls during kick-start attempts
• Efficiency: Easier for multiple riders to start quickly
• Customization: Adds modern functionality to older dirt bikes

For both beginners and seasoned riders, an electric start enhances the overall riding experience.

Common Issues and Troubleshooting

Even after proper installation, issues may arise:

• Starter motor does not engage: Check wiring, solenoid, or gear alignment
• Battery drains quickly: Inspect battery health and connections
• Clicking sound but no engine turnover: Solenoid may be faulty or wiring reversed
• Engine starts but stops immediately: Verify throttle and kill switch functionality

Address issues promptly to avoid damage and ensure reliable performance.

Can You Put Electric Start on Any Dirt Bike?

Most dirt bikes can be retrofitted with bolt-on kits:

• Works best on engines with existing crankcase access
• Smaller engines (50–125cc) often require lighter starter motors
• Larger engines (250cc+) may need upgraded batteries or solenoids
• Consult kit compatibility charts to ensure success

Proper kit selection is key to a successful installation.

Conclusion

Installing an electric start on a dirt bike transforms the riding experience. By following safety checks, bolt-on starter kit instructions, proper wiring, and post-installation testing, you can add convenience, safety, and performance to your bike.

Whether upgrading a beginner bike or modernizing a GT73 or similar model, electric start kits make rides smoother, quicker, and more enjoyable. Following this step-by-step guide ensures your installation is reliable and long-lasting.

Frequently Asked Questions

Can you put electric start on a dirt bike?

Yes, most bikes can accommodate bolt-on electric start kits with proper mounting and wiring.

How do I install an electric start on my dirt bike?

Install the starter motor, connect wiring to solenoid and battery, mount starter button, and test functionality.

Do I need a special battery for an electric start?

A 12V lithium-ion or lead-acid battery with sufficient current output is required for reliable startup.

Will electric start kits fit older dirt bikes?

Many kits are compatible with older bikes; check manufacturer specifications for engine and crankcase compatibility.

What are common problems after installing electric start?

Loose wiring, misaligned gears, faulty solenoids, or weak batteries are the most common issues.