Introduction
This manual provides essential information for the safe assembly, operation, and maintenance of your X-PRO Cyclone 40cc 4-Stroke Kids Dirt Bike. Please read all instructions carefully before use to ensure optimal performance and safety.
Safety Information
Always wear appropriate safety gear, including a helmet, gloves, and protective clothing, when operating the dirt bike. Ensure the security speed governor is properly set for the rider's skill level. This product is recommended for small children and beginners due to its smaller engine and smooth acceleration. Adult supervision is required at all times.
WARNING: This product can expose you to chemicals, including arsenic, which is known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.
Package Contents
Your X-PRO Cyclone 40cc Dirt Bike package includes:
- Dirt bike frame with engine and rear wheel pre-assembled
- Front wheel
- Handlebar
- Front fender
- Number plate
- Assembly tools (may vary by model)
- User manual

Image: The X-PRO Cyclone 40cc Dirt Bike packaging box, indicating model number and brand.
Setup & Assembly
The X-PRO Cyclone 40cc Dirt Bike requires some assembly. Follow these steps carefully:
- Unboxing: Carefully open the packing box and remove the motorcycle and all accessories. Ensure all necessary tools are present.
- Handlebar Installation: Install the handlebar onto the steering column. Secure it using the provided bolts and tighten them appropriately.
- Front Wheel Assembly: Remove the front brake caliper to prepare for front wheel installation. Install the front wheel by placing the spacer before tightening the fixed nut. Reinstall the front brake caliper.
- Front Fender and Number Plate: Attach the front fender and number plate to the front forks using the provided hardware.
- Rear Shock Installation: Install the rear shock absorber, ensuring it is securely fastened.
Visual Guide: Assembly Process
Video: Detailed assembly instructions for the X-PRO Cyclone 40cc Kids Dirt Bike, demonstrating each step from unboxing to final checks.
Video: An additional assembly guide for the X-PRO 40cc Kids Mini Dirt Bike, providing further visual assistance for setup.

Image: Front view of the X-PRO Cyclone 40cc Dirt Bike, highlighting the handlebar and front wheel assembly area.

Image: Side view of the X-PRO Cyclone 40cc Dirt Bike, showing the engine and general frame structure during assembly.

Image: Rear view of the X-PRO Cyclone 40cc Dirt Bike, focusing on the rear wheel and suspension components.
Operating Instructions
The X-PRO Cyclone 40cc Dirt Bike features a reliable 4-stroke engine, offering smooth and steady acceleration suitable for beginners. It does not have gears, making it easy to operate for new riders.
- Fueling: Use regular unleaded gasoline. The 4-stroke engine does not require pre-mixing oil with the fuel.
- Starting: Ensure the kill switch is disengaged and the fuel valve is open. Use the pull-start mechanism to start the engine.
- Throttle Control: The bike features a smooth throttle for controlled acceleration.
- Braking: Utilize the front and rear brakes for effective stopping.
- Speed Governor: The security speed governor allows for speed limitation, which is ideal for young riders learning to ride.
Demonstration Video: Riding the X-PRO Cyclone 40
Video: A short demonstration of the X-PRO Cyclone 40 Kids Dirt Bike in operation, showcasing its handling and performance.
Maintenance
Regular maintenance is crucial for the longevity and safe operation of your dirt bike.
- Engine Oil: Regularly check and maintain the engine oil level. Use 10w-40 oil as recommended.
- Brakes: Inspect brake pads and cables regularly for wear and proper function. Adjust as needed.
- Chain: Keep the drive chain clean, lubricated, and properly tensioned.
- Tires: Check tire pressure before each ride. Ensure tires are free from damage.
- General Inspection: Periodically check all nuts, bolts, and fasteners for tightness.
Troubleshooting
If you encounter issues with your X-PRO Cyclone 40cc Dirt Bike, consider the following:
- Starting Issues: Ensure the fuel valve is open, the kill switch is disengaged, and there is fresh fuel in the tank. A few pulls of the starter should get it going.
- Engine Stalling: Check fuel supply, spark plug condition, and air filter cleanliness. Ensure proper engine oil levels.
- Loose Parts: Regularly inspect for loose handlebar brackets, wheels, brakes, or other components that may require tightening.
Specifications
- Manufacturer: X-Pro
- Brand: X-PRO
- Model: Cyclone 40
- Item Weight: 44 pounds
- Item Model Number: DB-Z005
- Manufacturer Part Number: DB-Z005
- Special Features: Off-road capability
- Lift Type: Manual
Warranty & Support
XPROUSA is committed to providing reliable products and customer support. As a licensed and authorized powersports manufacturer, XPROUSA offers a variety of cost-effective vehicles, accessories, and parts.
While some customer reviews mention a 1-year engine warranty on the manufacturer's website, it is recommended to verify current warranty terms directly with XPROUSA or the seller at the time of purchase. XPROUSA maintains a stock of parts for most vehicles sold, ensuring fast and reliable support for any necessary replacements.
For technical assistance or parts inquiries, please contact XPROUSA customer service.




