Razor Dirt Rocket SX500, MX500, and MX650 Owner's Manual

Safety Warnings

Riding an electric motor bike presents potential risks and requires caution. Like any riding product, it has inherent hazards such as falling off or riding into a dangerous situation. Riders can be seriously injured or die even when using safety equipment. Ride at your own risk and use common sense.

Parental and Adult Responsibility and Supervision Necessary: This manual contains important safety information. It is your responsibility to review this information and ensure that all riders understand all warnings, cautions, instructions, and safety topics. Ensure that young riders can safely and responsibly use these products. Razor recommends periodically reviewing and reinforcing this information with younger riders and inspecting and maintaining the product to ensure safety.

Age and Weight Restrictions:

• SX500/MX500: Not for children under 14 years or heavier than 175 lb (79 kg).
• MX650: Not for children under 16 years or heavier than 220 lb (100 kg).

These recommendations reflect expected maturity, skills, and physical size. Always ensure a rider can fit comfortably on the product. Parental decisions should be based on the child's maturity, skill, and ability to follow rules. Do not disregard Razor's recommendations or permit younger children to ride.

Acceptable Riding Practices and Conditions:

• Always obey local laws and regulations.
• Keep safely away from cars and motor vehicle traffic. Use only where allowed and with caution.
• Do not activate the speed control unless on the motor bike in a safe, outdoor environment.
• Normal powered top speed is approximately 15 mph (24 km/h) for SX500/MX500 and 17 mph (27 km/h) for MX650, affected by rider weight, inclines, tire inflation, and battery charge. Avoid excessive speeds.
• Maintain a hold on the handlebars at all times.
• Do not touch the brakes or motor immediately after riding, as these parts can become very hot.
• Ride defensively and watch for potential obstacles. Avoid pedestrians, skaters, skateboards, scooters, bikes, children, and animals.
• Use on flat, dry surfaces like pavement or level ground without loose debris (sand, leaves, rocks, gravel). Avoid wet, slick, bumpy, uneven, or rough surfaces. Do not ride in mud, ice, puddles, or water. Avoid sharp bumps, drainage grates, and sudden surface changes.
• Do not attempt stunts or tricks. These motor bikes are not built to withstand abuse from misuse like jumping or curb grinding.
• Never allow more than one person to ride the motor bike.
• Do not ride at night or when visibility is limited.
• Never use near steps or swimming pools.
• Keep hands, feet, hair, clothing, and other articles away from moving parts, wheels, or drive train chain.
• Never use headphones, a cell phone, or text while riding.
• Never hitch a ride with a vehicle.
• Do not ride in wet or icy weather. Never immerse the motor bike in water, as electrical and drive components can be damaged. Avoid using indoors on surfaces like carpet or flooring.

Proper Riding Attire: Always wear proper protective equipment: an approved safety helmet (chin strap securely buckled), elbow pads, and kneepads. A long-sleeved shirt, long pants, and gloves are recommended. Always wear athletic shoes (lace-up with rubber soles) with tied shoelaces kept away from moving parts. Never ride barefooted or in sandals.

Using the Charger:

• Regularly examine the charger for damage to the cord, plug, enclosure, and other parts. If damaged, do not charge until repaired or replaced.
• Use only the recommended charger.
• Use caution when charging. The charger is not a toy and should be operated by an adult.
• Do not operate the charger near flammable materials.
• Unplug the charger and disconnect from the motor bike when not in use.
• Always disconnect from the charger before cleaning the motor bike with a damp cloth.

FAILURE TO USE COMMON SENSE AND HEED WARNINGS INCREASES RISK OF SERIOUS INJURY. USE WITH APPROPRIATE CAUTION AND SERIOUS ATTENTION TO SAFE OPERATION.

Before You Begin

Remove contents from the box, including separators that protect components during shipping. Inspect for scratches, dents, or kinked cables. The motor bike is 95% assembled.

MAKE SURE POWER SWITCH IS TURNED "OFF" BEFORE CONDUCTING ANY ASSEMBLY OR MAINTENANCE PROCEDURES.

Estimated Assembly and Set-Up Time: Assembly by an adult with bicycle mechanics experience is recommended. Allow up to 30 minutes for assembly (not including initial charge time). Allow up to 12 hours for charging.

Product ID Locations:

• Battery cover
• Frame (underneath unit)
• Charger
• Box - side of UPC

Required Tools:

• 5 mm and 6 mm Allen wrenches
• 10 mm, 14 mm, and 17 mm wrenches (MX500/MX650 Models)
• 10 mm, 17 mm, and 19 mm wrenches (SX500 Model)
• Phillips screwdriver
• Spoke tightener

Plastic Bag Contents: Charger, Handlebar Clamps, Front Axle Bolt, Tools, Owner's Manual.

Assembly and Set-Up

Attaching the Handlebars

Tools required: 6 mm Allen wrench

1. Place handlebars in the handlebar clamps.
2. Align parallel to the fork and tighten bolts using a 6 mm Allen wrench. Ensure handlebars do not move forward or backward.
3. Adjust the brake lever adjuster to the proper place and tighten with a 5 mm Allen wrench.

Attaching the Front Fender

Tools required: 10 mm wrench and 5 mm Allen wrench

1. Align fender with the hole in the fork and insert the bolt. Tighten securely using a 10 mm wrench and 5 mm Allen wrench.

Attaching the Number Plate

Tools required: Phillips screwdriver

• MX500/MX650 Models: Remove screw from front fork. Align number plate with the hole in the fork and tighten with a Phillips screwdriver.
• SX500 Model: Slip cables through the slit on the top of the number plate. Align number plate with the holes on the fork and snap on.

Installing the Front Wheel

Tools required: 14 mm wrench and 17 mm wrench (MX500/MX650 Models); 17 mm wrench and 19 mm wrench (SX500 Model)

1. Position wheel in front fork and slide disk brake into caliper.
2. Slide axle through fork, spacer, and wheel hub. Add the other spacer on the other side, slide through the fork, and secure with washer and nut. Note: Front axle is installed with the spacer between the fork and wheel for all Dirt Rockets.
3. MX500/MX650 Models: Tighten front wheel with a 14 mm and 17 mm wrench.
4. SX500 Model: Tighten front wheel with a 17 mm and 19 mm wrench.

Inflating the Tires

Tires lose some pressure during shipping. Inflate to the correct PSI indicated on the sidewall.

WARNING: Do not over inflate, as this could damage the tire or wheel.

Use a bicycle-style tire pump. If using an air supply from a gasoline station, ensure the pressure gauge is working and use very short bursts to inflate to the correct PSI. Release excess pressure immediately if over-inflated.

Charging the Battery

Your electric motor bike may not have a fully charged battery; charge it prior to use.

• Initial charge time: 12 hours.
• Recharge time: up to 12 hours, even if the light turns green. Maximum charging time is 24 hours.
• Always charge the battery immediately after riding.
• Fully charge battery before storing for extended periods.
• Unplug charger from the wall outlet when not in use.
• Failure to recharge periodically may result in a battery that will not accept a charge.
• Make sure the power switch is OFF when charging. Leaving it on may drain the battery.
• To ensure long battery life, never store the product in freezing temperatures. Freezing will permanently damage the battery.
• Run time: Up to 40 minutes of continuous ride time. Run time may vary based on riding conditions, rider weight, climate, and maintenance.
• Battery life varies with proper maintenance and usage.

Charging Procedure:

1. Plug the charger into a wall outlet. The charger light should be green. If not, try a different outlet.
2. Ensure the power switch is OFF. Plug the charger into the charger port. The charger light should turn red during charging and green when complete.

WARNING: Use ONLY the recommended charger. Batteries are to be charged under adult supervision. The charger is not a toy. Always disconnect the charger before cleaning the motor bike.

Charger Examination: Regularly examine the charger for damage. If damaged, do not charge until repaired or replaced.

Charger Warmth: It is normal for the charger to get warm during use.

WARNING: Failure to recharge the battery at least once a month may result in a battery that will no longer accept a charge.

Pre-Ride Checklist

• Brake: Check for proper function. Squeeze lever; brake should provide positive braking action. Ensure brakes are not rubbing when released.
• Tires: Periodically inspect for excess wear and check tire pressure. Reinflate as necessary.
• Frame, Fork and Handlebars: Check for cracks or broken connections. Inspect regularly.
• Hardware/Loose Parts: Before every ride, check that all parts (nuts, bolts, cables, fasteners) are secure and assembled correctly. Ensure there are no unusual rattles or sounds from loose parts or broken components. If damaged, do not ride. Refer to "Safety Warnings".
• Safety Gear: Always wear proper protective gear: approved safety helmet, elbow pads, kneepads. Always wear athletic shoes (lace-up with rubber soles) with tied shoelaces kept away from moving parts. NEVER RIDE BAREFOOTED OR IN SANDALS.
• Laws and Regulations: Always check and obey local laws or regulations.
• Insurance: Check your insurance company for coverage details regarding motor bike use.

Repair and Maintenance

Turn power switch "OFF" before beginning repair or maintenance.

• Read instructions.
• Remove charger plug.
• Turn power switch off.
• Secure the unit under repair.
• Exercise caution around exposed parts.
• Contact Razor customer service if unsure about any repair or maintenance.

Adjusting the Brakes

Tools required: 5 mm Allen wrench

1. To adjust brake cable play, thread the brake lever adjuster in or out 1/4 to 1/2 turn until desired adjustment is attained.
2. If the brake has too much slack, loosen the rear anchor bolt with a 5 mm Allen wrench and pull the brake wire tighter. The distance of the brake wire between the end of the cable and the anchor bolt should be between 37 mm and 44 mm.
3. If the brake rotor is dragging on the brake pads, use fingers to twist the caliper adjuster in either direction until the rotor is centered between the pads.

WARNING: The brake can cause the motor bike to skid, throwing the rider. Practice in an open area to become familiar with brake function. Avoid skidding to a stop.

Testing the Brakes: Squeeze levers to increase pressure on the brake. Levers have a cable adjuster for cable stretch and fine-tuning lever movement. If brakes are not engaging properly, follow adjustment instructions.

Replacing the Fuse

WARNING: To prevent shock, follow instructions carefully.

1. Remove the seat fairing and battery cover to locate the 3 fuse boxes attached to the batteries.
2. Check all 3 fuses. Remove any damaged or burnt-out fuse and replace with a new one of equal amperage. Note: Amperage is located on top of the fuse.
3. Close the fuse cover and reattach the seat fairing.

Replacing the Chain and Tire

Tools required: Phillips screwdriver and two (2) 19 mm wrenches.

1. Loosen screws and remove chain guard.
2. Using two 19 mm wrenches, loosen both axle nuts.
3. Push the chain tensioner down to loosen the chain and remove the chain from the wheel sprocket and motor sprocket. Push and remove the wheel downward. Note: Your hands will get greasy.
4. Install the new chain or wheel by slipping the chain around the axle. Slide the axle into the slots on the frame. Slide the chain tensioner down and maneuver the chain onto the rear sprocket and motor sprocket.
5. Reattach the chain guard. Test ride and check. Readjust as needed.

Hardware Sequence:

• Right Side (Throttle): 16-1 Nut, 16-2 Washer, Frame, 16-3 Spacer
• Left Side (Brake): 16-1 Nut, 16-2 Washer, Frame, 16-3 Spacer

Spoke Tension

1. Verify spoke tension by shaking each spoke. Spokes should not be loose from the hub. Look for play where spoke flanges attach to the hub. Try to turn nipples by hand; they should not spin freely. If any spoke is loose, all spokes must be checked and tightened with a spoke wrench.
2. Start with the spoke closest to the tire valve stem. Tighten each nipple, in sequence, exactly 1/4 to 1/2 turn. Continue tightening all spokes, no more than 1/2 turn, in sequence, until all spokes are tight. Note: More than a 1/2 turn each can distort and damage the wheel.

WARNING: Regularly check spoke tension and retighten when loose. If in doubt, ask an experienced mechanic to inspect spokes.

Chain and Sprocket

Maintain proper chain alignment. The wheel must not be skewed. If the chain is noisy or running rough, check lubrication, tension, and alignment of the sprockets.

WARNING: To avoid a pinch or injury, keep fingers away from moving sprockets and chain.

Battery Care and Disposal

Never store the product in freezing temperatures, as this will permanently damage the battery. Failure to recharge at least once a month may result in a battery that will no longer accept a charge.

CONTAINS SEALED LEAD ACID BATTERIES. BATTERIES MUST BE RECYCLED.

Disposal: Dispose of lead-acid batteries in an environmentally safe manner. Do not dispose of in fire, as the battery may explode or leak. Do not dispose of in regular household trash. Return exhausted batteries to an approved lead-acid battery recycler or a local automotive battery seller.

Charger: Regularly examine the charger for damage. If damaged, do not charge until repaired or replaced. Use ONLY the recommended charger.

Wheels: Wheels and drive system are subject to normal wear and tear. Periodically inspect wheels for excess wear and adjust/replace drive train components as required.

Replacement Parts: For spare parts, visit shop.razor.com.

Repair Centers: For a list of authorized Razor service centers, check www.razor.com.

WARNING: If a battery leak develops, avoid contact with leaking acid and place the damaged battery in a plastic bag. Refer to disposal instructions. If acid contacts skin or eyes, flush with cool water for at least 15 minutes and contact a physician.

WARNING: Battery posts, terminals, and related accessories contain lead and lead compounds. Wash hands after handling.

Troubleshooting Guide

Unit should be fully charged prior to troubleshooting and must be done by an adult ONLY.

For more troubleshooting tips, a list of available replacement parts, or to locate an authorized Service Center in your area, visit www.razor.com or call +1 866 467 2967.

Product Parts

Keep your motor bike running with genuine Razor parts. Visit www.razor.com for spare part availability.

Parts List:

• 1. Handlebar grip (right/left)
• 2. Twist grip throttle
• 2-1 Sleeve
• 3. Front brake lever assembly (right)
• 4. Handlebar
• 5. Rear brake lever assembly (left)
• 6. Front fork
• 7. Front fender
• 8. Handlebar clamp (upper/lower)
• 9. Front wheel complete
• 10. Caliper brake (2)
• 11. Shock absorber
• 12. Control module
• 13. Battery (3-12V/12Ah) w/ Fuse
• 14. SX500/MX500 motor (36V/500W)
• MX650 motor (36V/650W)
• 15. Kickstand
• 16. Rear wheel complete
• 17. Chain
• 18. Chain guard
• 19. Battery cover (left/right)
• 20. On/Off switch
• 21. Charger port
• 22. Seat fairing

A diagram showing the product parts with corresponding numbers is included.

Notice: Insurance

Your insurance policies may not provide coverage for accidents involving the use of this scooter/electric ride-on product. To determine if coverage is provided, you should contact your insurance company or agent.