1. Introduction and Safety Information
This manual provides essential instructions for the safe assembly, operation, and maintenance of your X-PRO Hawk 40 Mini Pit Bike Dirt Bike. Please read this manual thoroughly before operating the vehicle to ensure proper use and to prevent injury or damage.
Important Safety Notice
This 4-Stroke 40cc Mini Dirt Bike cannot be shipped to California due to state regulations.
Always wear appropriate safety gear, including a helmet, eye protection, gloves, and protective clothing, when operating the dirt bike. Adult supervision is required for riders under the age of 16. Operate only in designated areas and avoid public roads.
2. Setup and Assembly
Your X-PRO Hawk 40 Mini Pit Bike requires some assembly before its first use. This typically includes attaching the handlebar brackets, wheels, brakes, number plate, and fender. Specific assembly steps may vary slightly by model.
Assembly Steps Overview:
- Handlebar Installation: Secure the handlebar to the triple clamp using the provided brackets and bolts. Ensure all fasteners are tightened to the manufacturer's specifications.
- Wheel Attachment: Install the front and rear wheels. Pay close attention to brake caliper alignment and axle nut torque.
- Brake System Connection: Connect and adjust the brake cables or hydraulic lines. Test brake functionality thoroughly before operation.
- Fender and Number Plate: Attach the front fender and number plate to their designated mounting points.


3. Operating Instructions
The X-PRO Hawk 40 is equipped with a 40cc 4-stroke engine and a fully automatic chain drive transmission, designed for ease of use, especially for beginners and younger riders.
Starting the Engine:
- Ensure the fuel tank contains fresh, unleaded gasoline. This 4-stroke engine does not require oil mixing with the fuel.
- Locate the engine kill switch and ensure it is in the 'ON' position.
- If equipped, engage the choke for cold starts.
- Use the pull start mechanism. Pull the cord firmly and smoothly until the engine starts.
- Once the engine is running, gradually disengage the choke as the engine warms up.
Riding the Dirt Bike:
The automatic transmission provides smooth and steady acceleration, making it suitable for new riders. The maximum speed is approximately 22 mph.
- Gently apply the throttle to begin moving.
- Maintain a balanced posture and keep both feet on the footpegs while riding.
- Steer by leaning and turning the handlebars.
Stopping the Dirt Bike:
The bike features front and rear dual disc brakes for effective stopping power.
- Release the throttle completely.
- Apply both the front and rear brakes smoothly and evenly to slow down and stop. Avoid sudden, hard braking, especially at high speeds.
- Once stopped, engage the engine kill switch to turn off the engine.

4. Maintenance
Regular maintenance is crucial for the longevity and safe operation of your X-PRO Hawk 40 Mini Pit Bike. The 4-stroke engine design offers easier maintenance compared to 2-stroke engines, as it does not require fuel mixing.
Routine Checks:
- Engine Oil: Check engine oil levels before each ride and change according to the schedule in the full service manual. Use recommended 4-stroke engine oil.
- Tires: Inspect the 2.5-10 off-road tires for proper inflation and wear before each ride. Ensure tire pressure is within the recommended range.
- Brakes: Verify that the front and rear disc brakes are functioning correctly and that brake pads are not excessively worn. Adjust as necessary.
- Chain: Inspect the drive chain for proper tension and lubrication. Lubricate regularly with chain lubricant.
- Fasteners: Periodically check all nuts, bolts, and fasteners for tightness. Tighten any loose components.
- Air Filter: Clean or replace the air filter regularly, especially when riding in dusty conditions.
Cleaning and Storage:
- Clean the dirt bike after each ride to remove dirt and debris. Avoid using high-pressure washers directly on electrical components or bearings.
- Store the dirt bike in a dry, secure location away from direct sunlight and extreme temperatures.
5. Troubleshooting
This section addresses common issues you might encounter with your X-PRO Hawk 40 Mini Pit Bike.
Engine Does Not Start:
- Fuel Level: Check if there is sufficient fuel in the tank.
- Kill Switch: Ensure the engine kill switch is in the 'ON' position.
- Choke: For cold starts, ensure the choke is engaged. Disengage once warm.
- Spark Plug: Inspect the spark plug. It may be fouled, wet, or incorrectly gapped. Clean or replace if necessary.
- Fuel System: Check for clogged fuel lines or a dirty carburetor.
Loss of Power / Poor Performance:
- Air Filter: A dirty air filter can restrict airflow. Clean or replace it.
- Fuel Quality: Ensure you are using fresh, clean unleaded gasoline.
- Spark Plug: A worn or fouled spark plug can lead to misfires and reduced power.
- Engine Oil: Incorrect oil level or old oil can affect engine performance.
Brakes Not Effective:
- Brake Pad Wear: Inspect brake pads for wear. Replace if worn beyond limits.
- Brake Cable Adjustment: Adjust brake cable tension for proper lever feel and stopping power.
- Contaminated Rotors/Pads: Clean brake rotors and pads if they are contaminated with oil or grease.
For issues not covered here, or if troubleshooting steps do not resolve the problem, please contact X-PRO customer support.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | DB-Z012 |
| Engine Type | 40cc, 4-Stroke |
| Transmission | Fully Automatic Chain Drive |
| Starting System | Pull Start |
| Max Speed | Approximately 22 mph |
| Wheel Size | 10 inches |
| Tires | 2.5-10 Off-Road Tires |
| Brakes | Front & Rear Dual Disc Brakes |
| Product Dimensions (L x W x H) | 50 x 22.8 x 29.5 inches |
| Recommended Age | 7 years and up |
7. Warranty and Support
For specific warranty details regarding your X-PRO Hawk 40 Mini Pit Bike, please refer to the documentation provided at the time of purchase or contact the seller directly. Warranty terms typically cover manufacturing defects for a specified period.
Customer Support:
X-PRO is committed to providing reliable support and aftermarket service. If you have questions about assembly, operation, maintenance, or require replacement parts, please contact X-PRO customer service. Our experienced team is available to assist you with technical support and ensure your satisfaction.
You can often find contact information on the X-PRO official website or through your original point of purchase.




