Segment: ATV/Quad
Production years: 2008, 2009
3 Photos
The 2008 Yamaha Big Bear 400 just gets better and better with the addition of the IRS package: with independent rear suspension, this ATV is now able to copy the terrain roughness even better than before, maximizing traction and carry rider and gear further into the wilderness. A semi-automatic transmission with a 5-speed gearbox and automatic clutch, makes things easy and fun, even for the less experienced rider.
With a differential with 3 on-command locking positions, the 2008 Yamaha Big Bear 400 IRS has better grip on slippery terrain and steep slopes, alike. This ATV retains the serious racking capacity of the bigger beasts and can tow heavy loads, thus being a dependable partner in completing the toughest tasks and being a fun machine for weekend trail fun, camping or even longer off-road explorations.
YAMAHA Big Bear 400 IRS 2008-2009
YAMAHA Big Bear 400 IRS 386
| engine specs | Type: | 4-stroke, Air-/oil-cooled Single, SOHC | Displacement: | 386 cm3 | Bore X Stroke: | 3.3x2.8 in OR 84 mm | Compression Ratio: | 8.6:1 | Horsepower: | / KW(hp)/RPM | Torque: | 0/ lb-ft/RPM OR 0 Nm/RPM | Fuel System: | Mikuni 33mm BSR |
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| transmission specs | Gearbox: | 5-speed, reverse | Clutch: | Automatic clutch | Primary Drive: | - | Final Drive: | On-Command pushbutton; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive |
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| chassis specs | Frame: | Steel | Front Suspension: | Independent double wishbone; 5.8-in travel | Rear Suspension: | Independent double wishbone; 7.6-in travel | Front Brake: | Dual Hydraulic Discs | Rear Brake: | Sealed wet brake |
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| dimension specs | Overall Length: | 79.4 in OR 2017 mm | Overall Width: | 43.9 in OR 1115 mm | Seat Height: | 35.2 in OR 894 mm | Wheelbase: | 48.4 in OR 1229 mm | Ground Clearance: | 10.5 in OR 267 mm | Weight: | 593 lbs OR 269 kg | Fuel Capacity: | 4 gallons OR 15.1 L |
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| tyres specs | Front: | AT25 x 8-12 ITP Mud Lite | Rear: | AT25 x 10-12 ITP Mud Lite |
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