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YAMAHA Big Bear Models/Series Timeline, Specifications & Photos

Generations: 8
First production year: 2006
YAMAHA Big Bear 400 4x4 IRS photo gallery

The 2011 Yamaha Big Bear 400 4x4 IRS is a dependable ATV which can easily take you to places where even the human foot will be in difficulty. Thanks to its triple-mode traction, the 2011 Big Bear 400 4x4 IRS can easily tackle pretty much any obstacles: it comes with a casual 2WD rear traction mode, and a dual-range 4WD one.

Besides the usual 4WD drive, the 2011 Yamaha Big Bear 400 4x4 IRS offers a limited-slip differential mode, essential for difficult situations such as very steep gradients. With these modes available at the push of a button and the ease of use provided by the automatic transmission, this ATV is really rider-friendly.

Luggage racks can accommodate tools and all the needed gear for a weekend in the wilderness: the 2011 Yamaha Big Bear 400 4x4 IRS is equally suitable for both work and play, and thanks to its huge ground clearance, you can be sure there's little to stop it in its way.

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YAMAHA Big Bear 400 4x4 IRS photo gallery

The 2010 Yamaha Big Bear 400 4x4 IRS is a reliable partner for when the off-road going gets tough: building on the proven dependability of the series, the 2010 model boasts the amazing independent rear suspension for exceptional ground tracking in multiple conditions, regardless of the loading status. An exceptional workhorse for those who need solid terrainability, the 2010 Yamaha Big Bear 400 4x4 IRS can double as a nifty camping machine for weekend fun.

On-command 4WD and selectable differential locking and rear-wheel engine braking ensures great passability over difficult terrain and down steep gradients for a more reassuring feel, while the sealed rear brake adds to the ease of taming this brawny beast. Resilient wrinkle-finish racks and full floorboards add to the functionality and convenience of the 2010 Yamaha Big Bear 400 4x4 IRS, making it fun and useful in all weather conditions.

full description and technical specifications
YAMAHA Big Bear 400 4x4 IRS photo gallery

Thanks to its triple-mode traction, the 2010 Big Bear 400 4x4 IRS can easily tackle pretty much any obstacles: it comes with a casual 2WD rear traction mode, and a dual-range 4WD one, ready to take you to places where even the human foot will be in difficulty.

The 2010 Yamaha Big Bear 400 4x4 IRS sports an usual 4WD drive and a limited-slip differential mode, essential for difficult situations such as very steep gradients. With these modes available at the push of a button and the ease of use provided by the automatic transmission, this ATV is really rider-friendly.

Luggage racks can accommodate tools and all the needed gear for a weekend in the wilderness: the 2010 Yamaha Big Bear 400 4x4 IRS is equally suitable for both work and play, and thanks to its huge ground clearance, you can be sure there's little to stop it in its way.

full description and technical specifications
YAMAHA Big Bear 400 photo gallery

The 2009 Yamaha Big Bear 400 is the definition of ATV versatility, packing a lot of punch and convenience thanks to its 5-speed/ reverse gearbox with automatic clutch. Now it's easier to adapt the power delivery to any scenario, inluding the use of the on-command 3-way differential lock which helps the rider get a better grip on slippery terrain or steep slopes.

This quad retains the impressive racking capacity and can tow qute heavy loads, being a dependable partner in completing the toughest tasks and being a fun machine for weekend trail fun, too. The built-in winch mounts make installing this valuable upgrade easy and quick and you'll be up an running in no time. Add in long-travel independent suspensions and engine braking and there you have it, Mr. Quad Versatility.

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YAMAHA Big Bear 250 photo gallery

The 2008 Yamaha Big Bear 250 is a nifty quarter-liter machine for those who need a lightweight ATV which is capable of handling rough terrain and be a dependable partner for both work and play. If the big-bore beasts are not your favorite toys or in case your all-terrain vehicle budget is a bit on the thin side, the 2008 Yamaha Big Bear 250 may be just the right choice.

Smaller displacement does not mean a compromise in performance: it only means scaling down. This ATV comes with a semi-automatic transmission using a 5-speed gearbox and automatic clutch for easy operation and optimal power delivery in all scenarios. Tough, Grizzly-type chassis and bodywork and similar suspensions ensure great traction and handling even in tight situations, and the rear wheels engine braking is yet another top-class feature present in the 2008 Yamaha Big Bear 250. This is not a toy-ATV, it's only a smaller-size workhorse. A workponey, if you wish.

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YAMAHA Big Bear 400 IRS photo gallery

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.

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YAMAHA Big Bear 400 photo gallery

Hop aboard the 2008 Yamaha Big Bear 400 and hit the trail... or start your first chores around the ranch: you're riding a very serious off-road machine which is hard to stop, no matter how rough the terrain is. This ATV is really easy to drive thanks to its semi-automatic transmission: the gearbox has a 5-speed architecture, but the clutch is automatic, making everything smooth and fun.

This ATV also boasts the Yamaha on-command 3-way differential lock which helps the rider get a better grip on slippery terrain or steep slopes. The mid-size chassis provides plenty of room, but at the same time allows the riders to load this quad in the back of a casual pickup truck, for easy transportation to remote locations.

The 2008 Big Bear 400 retains the serious racking capacity and can tow heavy loads, being a dependable partner in completing the toughest tasks and being a fun machine for weekend trail fun, too.

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YAMAHA Big Bear 400 IRS 4x4 photo gallery

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.

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