Yamaha Big Bear Specs, Top Speed, HP, Etc.

Yamaha Big Bear 400, 350 and 250 ATV Specs/Info

The Yamaha Big Bear is an all-terrain vehicle manufactured by Yamaha and used for hunting, farming and enjoying the great outdoors. Notable features include rugged handling without compromise to load capacity and a class leading 264 lbs rack system. Winch mounts and ITP Mud Lite tires are standard equipment. Full floor boards and marine spec electrical parts are also standard on the Big Bear 400. For comparison jump ahead to the Big Bear 250 review below.

How Much Does The Yamaha Big Bear Weigh?

The Yamaha Big Bear 400 weighs 556 lbs without fluids(dry weight) in factory stock condition. The Yamaha Big Bear 350 4WD weighs 564 lbs and the Big Bear 250 model weighs 456 lbs. With fluids included and a full tank of fuel add another 30lbs to these weights. Figures were taken directly from their owner’s manuals. Weight changes slightly based on model year but not by very much.

About the Yamaha Big Bear 400 ATV

Yamaha Big Bear 400 ATVs were built in Newman, GA, USA and feature a large capacity fuel tank with a built in fuel gauge as well as a great turning radius. Blazing a new trail while hunting is made easier with Big Bear features, you will appreciate being able to maneuver around obstacles in tight areas.

Yamaha Big Bear 400 Specs

  • Cylinders: 1
  • Engine Stroke: 4-Stroke
  • Valve Configuration: SOHC
  • Displacement: 386cc
  • Carb Type: Carburetor
  • Yamaha Big Bear Top Speed: 62MPH
  • Transmission Type: Manual / Automatic Clutch
  • Number Of Speeds: 5
  • Big Bear 400 oil capacity: 3.2 quarts (3.6 Liters)
  • Primary Drive: Shaft
  • Reverse Gear: Yes
  • Front Tires: AT25 x 8 – 12 ITP Mud Lite
  • Rear Tires: AT25 x 10 – 12 ITP Mud Lite
  • Front Brake Type: Dual Hydraulic Disc
  • Rear Brake Type: Sealed Oil Bath
  • Wheelbase: 48.4 inches
  • Fuel Capacity: 4 gallons

The Yamaha Big Bear ATV featured the longest wheelbase in its class. Integrated floor boards protect the rider from dirt and road debris. The Yamaha Big Bear can carry 165 lbs of cargo and tow an additional 728 lbs on a tralier connected to it’s bumper hitch. A strong 230cc, 4-stroke, air-cooled single over-head cam engine and 5-speed transmission with reverse give the Big Bear a high performance rating.

About the Yamaha Big Bear 250

Yamaha offers optional Big Bear 250 accessories including a front brush guard, front brush plate, front A-arm skid plates and a rear differential skid plate and over fenders. Talk about taking care of business! The Big Bear 250 is the ‘little brother’ of the Grizzly but it is ready to take you, and all your gear, into hard to reach areas. Big Bear seat height is 30.7 inches.

Yamaha Big Bear 250 specs

  • MSRP: $4,099
  • Engine: 230cc, 4-stroke, air-cooled SOHC
  • Bore and Stroke: 71.0mm x 58.0mm
  • Compression Ratio: 8.7:1
  • Big Bear Carburetor: Mikuni 33mm BSR
  • Ignition: DC w/ CDI
  • Starter: Electric w/auxiliary pull
  • Big Bear Transmission: 5-speed w/reverse; automatic clutch
  • Drive Train: 2WD; shaft drive
  • Front Suspension: McPherson strut, 4.9-in travel
  • Rear Suspension: Swing-arm; 5-way preload adjustment, 5.3-in travel
  • Front Brakes: Dual hydraulic discs
  • Rear Brakes: Fully sealed drum
  • Tire / Front: AT22x7-10
  • Tire / Rear: AT22x10-10
  • L x W x H: 75.4 x 40.9 x 44.0 in
  • Yamaha Big Bear Seat Height: 30.7 in
  • Wheelbase: 46.1 in
  • Turning Radius: 114 in
  • Ground Clearance: 5.9 in
  • Fuel Capacity: 3.2 gal
  • Weight: 476 lb
  • Rack Capacity: 66 lb Fr./99 lb Rr.
  • Towing Capacity: 728 lbs
  • Instrumentation: None
  • Lighs: Dual 30W Krypton multi-reflector headlights and 21W/5W brake light
  • Warranty: 6 Month (Limited Factory Warranty)

Yamaha Big Bear 250’s had a suggested price of $4,099 in 2009. Compare them to the Yamaha Raptor 250 for additional insight.

Yamaha Big Bear 350 Specs

Yamaha began production of the Big Bear 350 all-terrain vehicle in 1987. The Big Bear 350 was exclusively a 4×4 ATV until 1997 when a 2×4 version became available. Production of the Big Bear 350 was halted in 1999 when Yamaha re-focused on other ATV models. The Yamaha Big Bear 350 has a load capacity of 175 lbs and notable features include an odometer, electric start and reverse gear.

The Yamaha Big Bear 350 Engine is of four-stroke design with a single overhead cam(SOHC). The engine is 350 cc in size with a total displacement of 21.3 cubic inches. The Big Bear’s transmission is a five-speed with reverse. The Big Bear has a compact frame design with a 47.6 inch wheelbase and 7.1 inches of ground clearance.

The Big Bear’s top speed has been recorded at 62 MPH, it is designed for work, not speed. Full fenders and inner splash guards are standard equipment on the Big Bear and protect the rider from mud and debris. A parking brake is mounted to the handlebar of the Big Bear which should be used when operating a winch.

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