Segment: ATV/Quad
Production started year: 2006
The engine of the Yamaha Big Bear 400 breathes through a 33mm Mikuni Carburetor. The guys at Yamahas engineering facility could have easily been drawn by the temptation to sling one of their famous EFI or Electronic Fuel Injection units on this quad. But to keep with the plan of the simple serviceable unit they opted for the traditional carburetor.
YAMAHA Big Bear 400 IRS 4x4 2006-Present
YAMAHA Big Bear 400 IRS 4x4 386
| engine specs | Type: | 4-stroke, Air-/oil-cooled Single, SOHC | Displacement: | 386 cm3 | Bore X Stroke: | - | Compression Ratio: | 8.6:1 | Horsepower: | - | Torque: | - | Fuel System: | Mikuni 33mm BSR Carburetor |
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| transmission specs | Gearbox: | 5 Speed | Clutch: | - | Primary Drive: | - | Final Drive: | Shaft |
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| chassis specs | Frame: | - | Front Suspension: | Independent Double Wishbone | Rear Suspension: | Independent Double Wishbone | 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: | 48.3 in OR 1227 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: | AT25x8-12 ITP Mud Lite | Rear: | AT25x10-12 ITP Mud Lite |
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