1. Introduction
This manual provides essential instructions for the safe assembly, operation, and maintenance of your 509 Air Jet Pedal Go Kart, Model U925007. Please read this manual thoroughly before assembly and use to ensure proper function and safety. Retain this manual for future reference.
Recommended Age: 4 - 8 years
Important Safety Information:
- Adult supervision is required at all times.
- Always wear a helmet and appropriate safety gear.
- Do not use near stairs, hills, roads, or swimming pools.
- Ensure all parts are securely fastened before each use.
- Only one rider at a time.
2. Parts List
Verify that all components are present before beginning assembly.
- Main Go Kart Frame (steel tube, powder-coated)
- Front Fairing with Sporty Graphics
- Adjustable Bucket Seat
- Sporty Steering Wheel
- Pedal Assembly (with enclosed chain mechanism)
- Double Touch Handbrake Lever
- Four 10-inch EVA Wheels
- Assembly Hardware (bolts, nuts, washers)
- Instruction Manual

Figure 2.1: Assembled 509 Air Jet Pedal Go Kart. This image shows the complete go-kart with its orange frame, black seat, steering wheel, pedals, and front fairing with sporty graphics.

Figure 2.2: Rear-side view of the go-kart, showing the seat, rear wheels, and the overall structure from a different angle.
3. Setup and Assembly
Assembly requires adult supervision and basic tools (not included, typically a wrench and screwdriver). Follow these general steps:
- Unpack Components: Carefully remove all parts from the packaging and lay them out on a clean, flat surface. Check against the parts list.
- Attach Front Axle and Wheels: Secure the front axle to the main frame. Attach the front 10-inch EVA wheels to the axle using the provided hardware.
- Attach Rear Wheels: Secure the rear 10-inch EVA wheels to the rear axle.
- Install Steering Column and Steering Wheel: Insert the steering column into the frame and attach the sporty steering wheel. Ensure it turns freely.
- Install Pedals and Chain Mechanism: Connect the pedals to the crank arm and ensure the chain is properly aligned and tensioned within its enclosed casing.
- Attach Seat: Secure the adjustable bucket seat to the frame. Adjust the seat position as needed for the rider's comfort and reach to the pedals.
- Install Front Fairing: Attach the front fairing with sporty graphics to the front of the go-kart.
- Connect Handbrake: Ensure the double-touch handbrake mechanism is correctly connected and functional.
- Final Inspection: Before first use, double-check all bolts, nuts, and connections to ensure they are tight and secure. Verify that the steering, pedals, and brake operate smoothly.

Figure 3.1: Side view of the go-kart, highlighting the steel tube powder-coated frame and the adjustable seat mechanism.

Figure 3.2: Top-down view showing the adjustable bucket seat and sporty steering wheel, along with the pedal area.
4. Operating Instructions
The 509 Air Jet Pedal Go Kart is designed for an authentic driving experience, encouraging physical activity and coordination.
- Getting Started: Ensure the rider is seated comfortably with feet able to reach the pedals. Adjust the seat if necessary.
- Pedaling: To move forward, push the pedals in a circular motion. The pedal-push sprocket is designed for easy operation by younger children.
- Steering: Use the sporty steering wheel to control the direction of the go-kart. The Air Jet offers quick response and sharp handling.
- Braking: The go-kart is equipped with a double-touch handbrake. To slow down or stop, engage the handbrake lever. Practice braking in a safe, open area.
- Usage Environment: Suitable for both indoor and outdoor use on flat, even surfaces. Avoid uneven terrain, inclines, or areas with obstacles.

Figure 4.1: Front view of the go-kart, showing the sporty graphics on the fairing and the steering wheel for directional control.
5. Maintenance
Regular maintenance ensures the longevity and safe operation of your go-kart.
- Cleaning: Wipe down the go-kart with a damp cloth and mild soap. Do not use abrasive cleaners or solvents.
- Inspections: Periodically check all nuts, bolts, and fasteners to ensure they are tight. Inspect the wheels and tires for wear or damage.
- Chain: The chain mechanism is enclosed for protection. If any issues arise with pedaling, consult a qualified technician.
- Storage: Store the go-kart in a dry, covered area away from direct sunlight and extreme temperatures to prevent material degradation.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Go-kart does not move when pedaled. | Chain dislodged or damaged. | Inspect the chain mechanism (if accessible) or contact customer support. |
| Steering is loose or unresponsive. | Steering column or wheel fasteners are loose. | Tighten all connections related to the steering mechanism. |
| Brake is not effective. | Brake cable loose or mechanism worn. | Check brake cable tension and connections. Adjust or seek professional assistance if worn. |
| Unusual noises during operation. | Loose parts or friction. | Perform a thorough inspection for any loose components. Lubricate moving parts if necessary (avoiding pedals/brakes). |
7. Specifications
- Model Number: U925007
- Product Dimensions: 41.93 x 20.2 x 23.27 inches
- Item Weight: 21.1 pounds
- Recommended Age: 4 - 8 years
- Wheel Type: 10 inch EVA Wheels
- Frame Material: Steel Tube Powder Coated Frame
- Features: Adjustable Bucket Seat, Sporty Steering Wheel, Double Touch Handbrake, Sporty Graphics on Front Fairing
- Manufacturer: 509 Crew (Hong Kong) Limited
- Release Date: April 1, 2022
8. Warranty and Support
For warranty information or technical support, please refer to the contact details provided with your purchase documentation or visit the official 509 website. Keep your proof of purchase for warranty claims.
Online Support: Visit the 509 Store on Amazon





