To make it easier for you to choose the right manual, we have compiled various information for you below, such as model designations, types, and production years.
The following models are covered by this manual: Big Bear 400 / Yamaha Motor Corp., Ltd
2007 Yamaha Big Bear 400
2008 Yamaha Big Bear 400
2009 Yamaha Big Bear 400
2010 Yamaha Big Bear 400
Engine: 386cc SOHC four-stroke single; air-/oil-cooled.
Production/model years: 2007, 2008, 2009, 2010
Manual Language: English
Delivery: Download link will appear on the checkout page after your payment is complete.
"ATV Fixes Made Easy: Buy and Enhance with PDF Solutions for the 2007-2010 Yamaha Big Bear 400"
Take your ATV adventures to the next level with the 2007-2010 Yamaha Big Bear 400. Whether you're tackling challenging terrains or embarking on outdoor adventures, the Big Bear 400 offers reliable performance, durability, and versatility. In this comprehensive guide, we will explore the engine specifications, interesting facts, maintenance tips, popular modifications, available accessories, owner reviews, and more for the Yamaha Big Bear 400. Get ready to optimize your ATV experience and unlock its true potential.
Engine Specifications/Technical Data:
• The 2007-2010 Yamaha Big Bear 400 is powered by a 386cc, air-cooled, four-stroke, single-cylinder engine, delivering dependable power for various off-road activities.
• It features an electric starting system for quick and effortless ignition, ensuring reliable starts in any condition.
• The Big Bear 400 is equipped with a five-speed transmission with reverse, allowing for seamless gear shifting and precise control.
• This ATV model utilizes a chain drive system for efficient power transfer to the wheels.
• The engine has a bore and stroke of 83mm x 64.5mm, offering a balance of torque and horsepower.
• It features a carburetor fuel system, providing consistent fuel delivery and performance.
• The Big Bear 400 has a fuel tank capacity of approximately 4.0 gallons, allowing for extended riding range.
• It is equipped with a dual A-arm front suspension and a swingarm rear suspension, providing a comfortable ride and excellent handling.
• The ATV features hydraulic disc brakes on the front and rear, delivering reliable stopping power and control.
• It has a ground clearance of approximately 8.7 inches, allowing for improved maneuverability over rugged terrains.
• The Yamaha Big Bear 400 measures around 78.1 inches in length, 42.5 inches in width, and 44.7 inches in height, offering a compact yet spacious design.
• It features a rugged steel frame construction, providing durability and stability during off-road adventures.
• The ATV has a dry weight of approximately 595 pounds, ensuring a lightweight yet sturdy build.
• The Big Bear 400 is equipped with a sealed rear wet brake system, minimizing the impact of water and mud on braking performance.
• It comes with dual front headlights and a single rear taillight for improved visibility and safety.
• The ATV features a range of utility features, including front and rear cargo racks for hauling equipment or supplies.
• It has a towing capacity of up to 1,100 pounds, making it suitable for towing small trailers or carrying additional gear.
• The Yamaha Big Bear 400 offers comfortable seating for one rider, with ample legroom and ergonomic design for long rides.
Facts and Details:
- The Yamaha Big Bear 400 was designed to handle a variety of tasks, including trail riding, hunting, and utility work.
- It featured a straightforward design and reliable components, making it popular among ATV enthusiasts and outdoor enthusiasts.
- The Big Bear 400 was known for its exceptional durability, capable of withstanding tough conditions and demanding use.
- Yamaha incorporated a front differential lock system in some models, allowing for enhanced traction and control in challenging terrain.
- The ATV offered a comfortable and upright riding position, reducing rider fatigue during long rides or work hours.
- It featured a reliable and efficient engine, providing sufficient power for both recreational and utility purposes.
- The Big Bear 400 boasted excellent low-end torque, allowing for smooth and controlled acceleration in various situations.
- Yamaha equipped the ATV with a durable suspension system, providing a smooth and stable ride over rough terrain.
- The ATV's compact size and maneuverability made it suitable for navigating narrow trails and confined spaces.
- It offered ample storage options, with front and rear cargo racks capable of carrying essential gear or supplies.
- The Yamaha Big Bear 400 was known for its ease of maintenance, with accessible components and user-friendly design.
- Owners appreciated the ATV's dependability and longevity, often reporting high mileage and trouble-free operation.
- The Big Bear 400 received positive feedback for its responsive handling and predictable steering, allowing for confident control in various riding conditions.
Maintenance Intervals, Tips, and Common Issues/Solutions:
► Regular maintenance intervals include oil and filter changes every 50 hours or annually, whichever comes first.
► Air filter cleaning and replacement should be performed regularly, especially in dusty environments.
► The ATV's cooling system requires periodic checks of the coolant level and condition, with coolant replacement recommended every two years.
► Regularly inspect and adjust the drive chain tension to ensure optimal performance and longevity.
► Check and maintain proper tire pressure for safe and efficient riding.
► Keep the ATV clean and free of debris to prevent clogging of air vents and cooling fins.
► Common issues with the Yamaha Big Bear 400 may include carburetor-related problems, such as fuel leaks or poor idle. Regular carburetor cleaning and adjustment can help address these issues.
► Electrical issues, such as wiring harness failures or ignition system malfunctions, may require inspecting and repairing or replacing affected components.
► Regularly lubricate pivot points, control cables, and other moving parts to ensure smooth operation and longevity.
Popular Tuning Tips or Modifications:
* Installing a snorkel kit to enhance water fording capabilities.
* Upgrading the exhaust system for improved performance and a more aggressive sound.
* Adding a winch for increased utility and recovery options.
* Upgrading the suspension components for enhanced off-road capabilities and a smoother ride.
* Installing aftermarket LED lighting for improved visibility during nighttime or low-light conditions.
* Upgrading the tires to a more aggressive tread pattern for better traction on challenging terrains.
Available Accessories and Aftermarket Options:
■ Cargo bags and boxes for additional storage options.
■ Handguards and brush guards for added protection against branches and debris.
■ ATV winches and mounting kits for increased utility and recovery options.
■ Skid plates and underbody protection for enhanced durability during off-road riding.
■ ATV snow plows for snow removal and winter utility tasks.
■ Heated grips and seat covers for added comfort during colder riding conditions.
■ ATV audio systems and communication devices for entertainment and connectivity.
Owner Reviews and Opinions (Strengths and Weaknesses):
☺ Strengths: Durability, reliability, versatility for various tasks, comfortable ride, ease of maintenance.
☻ Weaknesses: Limited seating capacity, somewhat limited top speed compared to larger ATVs, less suitable for high-speed trail riding.
Repairs That Need to be Carried Out Most Frequently:
→ Routine oil and filter changes.
→ Regular chain maintenance, including lubrication and tension adjustment.
→ Carburetor cleaning and adjustment.
→ Spark plug replacement.
→ Regular inspection and replacement of air filters.
→ Brake pad and rotor replacements.
→ Suspension component maintenance and lubrication.
Parts That Often Break:
→ Drive chain.
→ Brake pads and rotors.
→ Air filters.
→ Spark plugs.
→ Control cables.
→ CV boots and joints.
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