YEMA YM-850 Full Face Motorcycle Helmet Instruction Manual

1. Introduction

Thank you for choosing the YEMA YM-850 Full Face Motorcycle Helmet. This manual provides essential information for the proper use, maintenance, and care of your helmet. Please read it thoroughly before using your helmet to ensure maximum safety and comfort.

This helmet is designed to meet and exceed the ECE22.06 safety standard, offering reliable protection for various motorcycling activities, including street riding, enduro, quad, and snowmobiling.

2. Product Features

The YEMA YM-850 helmet incorporates advanced features for enhanced rider experience:

• High-Quality Construction: Aerodynamic ABS outer shell and EPS inner shell for impact absorption.
• Reinforced Chin Strap: Equipped with a quick-release buckle for secure and convenient fastening.
• Dual Visor System: Features an easy-to-operate sliding switch for quick deployment and retraction of the integrated sun visor. The main visor is designed for tool-free replacement.
• Adjustable Ventilation System: Multiple intake and exhaust vents create a constant, light airflow to keep the rider cool and comfortable, ensuring clear vision.
• Comfortable Interior: Fully removable and washable lining helps maintain hygiene and freshness.
• Aerodynamic Design: Engineered to reduce wind noise during rides.
• Visor Protection: Main visor and integrated sun visor are scratch and UV resistant.

Image 2.1: The YEMA YM-850 full face motorcycle helmet, showcasing its matte black finish and clear main visor.

3. Setup

3.1. Helmet Fitting

Proper fit is crucial for safety. The helmet should fit snugly around your head without causing pressure points. It should not move freely when you shake your head. If you are between sizes or prefer a looser fit, we recommend purchasing one size up from your usual size.

3.2. Securing the Chin Strap

1. Place the helmet on your head, ensuring it sits level and covers your forehead.
2. Fasten the quick-release chin strap securely under your chin.
3. Adjust the strap tension so that it is tight but comfortable. You should not be able to roll the helmet off your head when the strap is fastened.

4. Operating Instructions

4.1. Dual Visor System

The YM-850 features a dual visor system for varying light conditions:

• Main Visor: The clear outer visor can be opened or closed manually. It is designed for easy, tool-free replacement.
• Integrated Sun Visor: A retractable tinted sun visor is located inside the helmet. Use the sliding switch on the side of the helmet to deploy or retract the sun visor as needed. This allows for quick adaptation to changing light without needing to stop.

4.2. Ventilation System

The helmet's ventilation system helps regulate temperature and prevent fogging:

• Intake Vents: Located on the front and top of the helmet, these can be opened or closed to allow fresh air in.
• Exhaust Vents: Located at the rear, these vents allow warm, moist air to escape.
• Adjust the vents as desired to create a comfortable airflow and maintain clear vision. The controls are designed to be operable even with gloves on.

5. Maintenance

5.1. Cleaning the Exterior

Clean the helmet's outer shell and visors regularly with a soft cloth and mild soap and water. Avoid abrasive cleaners or solvents, as these can damage the helmet's finish and visor coatings. Rinse thoroughly and dry with a soft, clean cloth.

5.2. Cleaning the Interior Lining

The helmet features a fully removable and washable interior lining. To clean:

1. Carefully remove the interior padding from the helmet.
2. Hand wash the lining with mild soap and cool water.
3. Allow the lining to air dry completely before reinserting it into the helmet. Do not machine wash or tumble dry.

5.3. Storage

Store your helmet in a cool, dry place away from direct sunlight and extreme temperatures. Avoid placing heavy objects on the helmet, as this can deform the shell or padding.

6. Troubleshooting

6.1. Excessive Wind Noise

The YM-850 is designed with an aerodynamic shape to minimize wind noise. However, some noise is inherent to helmet use. Ensure all vents are properly closed if you wish to reduce airflow and associated noise. A snug fit is also essential for minimizing noise.

6.2. Visor Fogging

While the ventilation system helps, fogging can occur in certain conditions. Ensure the ventilation vents are open to promote airflow. If persistent, consider using an anti-fog treatment on the visor.

7. Specifications

8. Warranty and Support

For warranty information, product support, or any questions not covered in this manual, please contact YEMA customer service. Keep your proof of purchase for warranty claims.

You can typically find contact information on the official YEMA website or through your retailer.