These are the known mechanical and performance specifications for your 2010 Yamaha Big Bear 400 4x4 IRS.
Basic Specs
Year2010
MakeYamaha
ModelYamaha Big Bear 400 4x4 IRS
TypeATV
CostUS$ 6649. Prices depend on country, taxes, accessories, etc.
Engine
Displacement421.00 ccm (25.69 cubic inches)
Type
DetailsSingle cylinder, four-stroke
Max RPM
Compression8.6:1
Bore/Stroke83.0 x 71.5 mm (3.3 x 2.8 inches)
Valves/Cylinder
FuelingCarburettor. Mikuni® 33mm BSR
Ignition
Exhaust
Lubrication
CoolingOil & air
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity15.14 litres (4.00 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front SuspensionIndependent double wishbone
Front Travel147 mm (5.8 inches)
Rear SuspensionIndependent double wishbone
Rear Travel193 mm (7.6 inches)
Seat
Seat Height894 mm (35.2 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1,186 mm (46.7 inches)
Total Length2,017 mm (79.4 inches)
Total Width1,115 mm (43.9 inches)
Ground Clearance267 mm (10.5 inches)
Wheelbase1,229 mm (48.4 inches)
Dry Weight
Wet Weight284.9 kg (628.0 pounds)
Wheels & Brakes
Front Tire/Tyre25/8-AT12
Rear Tire/Tyre25/10-AT12
Front BrakesDouble disc
Front Brake Diameter
Rear BrakesDouble disc
Rear Brake Diameter
Wheels
Comments