2010 Yamaha Big Bear 400 4X4 IRS Specifications
Engine:
Engine configuration |
Single-Cylinder |
How many cylinders |
1 |
Types of power cycles |
Four-stroke |
Type of cooling system |
Air / Oil |
Valves |
2 |
Valves Per Cylinder |
2 |
Valve types and configurations |
Single Overhead Camshaft |
Bore (millimeters/inches) |
83 / 3.27 |
Stroke (millimeters/inches) |
71.5 / 2.82 |
Engine displacement (cubic centimeters/cubic inches) |
386 / 23.6 |
Compression Ratio |
8.6:1 |
Starter Type |
Electric / Pull |
Fuel |
Regular |
Type of Fuel |
Gas |
Carb Model |
Mikuni |
Injector |
– |
Carb |
+ |
Number Of Carburetors |
1 |
Carburetor Size (mm) |
33 |
Carburetor system |
Carb |
Governor (device) |
– |
Snorkel Air Intake |
Std |
Transmission:
Transmission Type |
Manual / Automatic Clutch |
Number Of Speeds |
5 |
Primary drive front |
Shaft |
Primary Drive (Engine / Transmission) |
Belt |
Reverse |
+ |
High low range selector |
– |
Wheels & Tires: Front (F), Rear (R):
Rims material |
Steel |
F Tire Diameter |
25 |
R Tire Diameter |
25 |
Chromed |
– |
F Tire Width |
8 |
F Wheel Diameter |
12 |
R Tire Width |
10 |
R Wheel Diameter |
12 |
F Tire Brand |
AT25 x 8 – 12 ITP Mud Lite |
R Tire Brand |
AT25 x 10 – 12 ITP Mud Lite |
Brakes:
Front |
Dual Hydraulic Disc Brake |
Rear |
Sealed Oil Bath |
Engine Braking |
Std |
Suspension: Front (F), Rear (R):
ATV F suspension system |
Independent Double Wishbone |
F Travel (millimeters/inches) |
5.8 / 147.3 |
Front Adjustable Fork Pre-Load |
+ |
Front Adjustable Rebound Damping |
– |
Front Central Suspension Strut |
– |
Steering Damper |
– |
F Stabilizer Bar |
– |
ATV R suspension system |
Independent Double Wishbone |
R Travel (inches/millimeters) |
7.6 / 193 |
Rear Adjustable Shock / Spring Pre-Load |
+ |
Rear Adjustable Rebound Damping |
– |
ATV R shock absorbers |
2 |
Rear Suspension Material |
Steel |
R Stabilizer Bar |
– |
Air Adjustable |
– |
Steering:
Steering system |
Manual |
Steering controller |
Handlebar |
Technical Specifications:
Overall length (foot) |
6.62 |
Overall width (inches/millimeters) |
43.9 / 1115.1 |
Overall heigth (inches/millimeters) |
46.7 / 1186.2 |
Wheelbase (in/mm) |
48.4 / 1229.4 |
Turning Radius (ft) |
10.5 |
Ground Clearance (in/mm) |
10.5 / 266.7 |
Length (foot/foot) |
6 |
Length (foot/inches) |
7.4 |
ATV wet weight (pounds/kilograms) |
628 / 284.9 |
Towing Capacity (lbs/kgs) |
904 / 410.1 |
Fuel tank capacity (gallons/liters) |
4 / 15.1 |
Performance |
Std |
Seats:
Seat Type |
One-Piece |
Seat adjusting system |
– |
Material |
Vinyl |
Seat Location |
Driver |
Folding seat |
– |
Seat Height (in/mm) |
35.2 / 894.1 |
ATV seats |
1 |
Exterior:
ATV frame material |
Steel |
Basic outside panels material |
Plastic |
Floor Board Location |
Driver |
ATV handlebar grips |
Std |
Foot Peg Location |
Driver |
BrushGuard |
+ |
Radiator Guard |
– |
CV Boot Cover |
+ |
Shock Cover |
– |
Front Fender |
Std |
Rear Fender |
Std |
Hand grips |
Std |
Front Bumper |
Std |
A-Arm Skid Plate (Front/Rear) |
Yes / No |
Bash Plate (Front/Rear) |
Yes / Yes |
SwingArm Skid Plate |
– |
Instrumentation:
Odometer |
Std |
Speedometer |
Std |
Over temperature indicator |
Light |
Low fuel level indicator |
Gauge |
Pricing:
Basic warranty (Mo./Condition) |
6 / Limited |
Battery Warranty (Mo.) |
0 |
Identification:
ATV Type |
Utility |
Made in |
Japan |
Minimum manufacturer age recommended |
16 |
Parent Company |
Yamaha |
Full name |
Big Bear 400 4X4 IRS |
Mounts:
Drive Line:
Driveline Brand |
On-Command™ |
Driveline Type |
Selectable 4X2 / 4X4 |
Number Of Driveline Modes |
2 |
Rear Unlocking Differential |
– |
Rear Solid Axle |
– |
Differential Lock Location |
Front |
Towing & Hauling:
Tongue Weight (lbs/kgs) |
900 / 408.2 |
Rear Hitch Type |
Std |
Convenience:
Storage:
Underseat Storage |
Std |
Capacity (lbs/kgs) |
88 / 39.9 |
Lights:
Headlight Mounts |
Std |
Halogen Headlight (s) |
Std |
Headlight (s) |
Std |
Type |
Halogen |
Paint & Finish: