The Yamaha huge Bear 400 to be a tough and reliable quad that might get the project done. Its exceptional power was a perfect trade-off for top-end speed, and its rugged appeal, towing capabilities, and also mighty engine were a huge hit through consumers. World adored this wheeler, also with the imperfections.

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Often contrasted to a Fourtrax 300 and confused with a Wolverine, the Yamaha big Bear 400 make itself fairly a adhering to during the 12-year production run. Sporting a mid-size chassis, dual driveline modes, smooth transmission, and a powerful engine, the large Bear to be a breakthrough for Yamaha.

The quad continued to be true to Yamaha’s call of developing reliable and durable vehicles till the an extremely end – so lot so the a the majority of Yamaha enthusiasm were saddened through the discontinuation of the model in 2012. This read will enlighten girlfriend on why the large Bear is for this reason well-loved by consumers, together you learn about its specs and also features, highs and lows, and more.


The Revolutionary 4×4

The Yamaha big Bear 400 is the 17th model released by Yamaha due to the fact that its 1980 Tri-Moto released in the U.S. The Yamaha large Bear 400 was initially designed for work and also carried the exact same terminology as its 1987 350-class predecessor. The was no the very first ATV to have actually 4×4 specifications, but it counter it by being the first with completely camouflaged bodywork, do it famous as a hunting vehicle. The four-wheeler was created from 2000 to 2012 before it ceased production to construct the remainder of Yamaha’s ATV lineup.

Yamaha got busy during the huge Bear’s manufacturing run, creating several various trims across all version years:

Yamaha large Bear Trims

2000 Yamaha large Bear 400YFM400FWNM-FWNMC-FWNHM (4WD Buckmaster)YFM400M-NMC (2WD 4WD)2001 Yamaha big Bear 400YFM400FHN-FN (4WD Hunter)YFM400HN-N (2WD Realtree)2002 Yamaha big Bear 400YFM400P-HP (2X4 Hunter)YFM400FP (4X4)2003 Yamaha big Bear 400YFM400FWR (4X4)YFM400NR (400 2WD)2004 Yamaha huge Bear 400 (YFM40S 2WD)2004 Yamaha large Bear 400 (YFM40FS 4X4)2005 Yamaha huge Bear 400 (YFM40FT 4X4)2006 Yamaha huge Bear 400 (YFM40FV 4X4)2007 Yamaha huge Bear 400YFM40FBEW-FBHW-FBW (4WD Hunter IRS trying out Edition)2008 Yamaha big Bear 400YFM400FBHX-FBXGR-FBXL-FBXR 4WD2009 Yamaha large Bear 400 (FM400FB 4WD)2010 Yamaha big Bear 400 (YFM400FB 4WD)2011 Yamaha huge Bear 400YFM400FBAGR-FBAL-FBHA huge Bear 4WD2012 Yamaha huge Bear 400 (YFM400FB 4WD)

If over there is anything that ideal signifies the carrier surname of this model, the is the engine. The strength mill that this quad is equivalent to a V8 fitted right into a mid-size 4×4. It has a dirt bike-style BSR33 carb, a 4-gallon gas tank, a big oil-cooler, and also a CDI ignition. On the outside, the quad’s functional plastic fenders space indestructible, straightforward to clean and also offer sufficient splash protection. Front and rear bumpers safeguard the mechanical components, and racks provide plenty the cargo space. Electronics and fuses are under the seat, along with the airbox and also battery.

2000 Yamaha huge Bear 400 Specs (YFM400FNM)

Engine– that is powered by a four-stroke, air-cooled, single-cylinder SOHC engine. The forward-inclined power mill has actually a bore-stroke proportion of 83 × 71.5 millimeter (3.27 × 2.82 inches). The Yamaha big Bear 400 4×4 has actually an engine displacement the 386 cubic centimeters, a compression proportion of 8.6:1, and a wet sump lubrication system. A 33-mm Mikuni BSR carburetor handles the air-fuel mixture. Fuel tank capacity is 3.96 us gallons/15 liters, through 1.06 us gallons/4 liters reserve.Brakes– Front double hydraulic key brakes and also a sealed mechanical drum at the rear carry out the large Bear protecting against power.Suspension– The quad attributes an independent double-wishbone front and swing arm rear suspension v five-way preload-adjustable shocks because that both that permit 5.9 customs of wheel travel. The 2004 Yamaha big Bear 400 had high-quality Showa spring/shocks front and also rear. For every models, the vehicle’s IRS provides maximum ground clearance and excellent maneuverability on diverse terrain.Dimensions– The quad’s overall dimensions space 79 x 43.7 x 46.1 inch (2,007 x 1,111 x 1,172 millimeter – together x W x H). The minimum soil clearance is 9.65 inches, when the minimum turning radius is 124 inches. The car wheelbase is 48.4 inches. Curb weight is 266 Kg/586 lbs. Towing capacity is 904 lbs/410 Kg, add to 265 lbs/120.2 Kg merged rack capacity.Exterior– it is made up of a stole tube frame (with a 4° caster angle and also 21-mm trail) and plastic human body material. The complete floorboard is ~ above the driver’s side. The wheeler comes through standard handgrips, fenders, prior A-arm skid plate, and also front/rear bash plates. Instrumentation is composed of a trip odometer, speedometer, and temperature/fuel indicators, and also you will uncover 88 lbs/39.9 Kg precious of extra warehouse under the seat.

The Yamaha large Bear 400 had actually 30 trims during its 12-year manufacturing run based on online references and research.

What huge Bear owners Love around Their Quad

Big be afflicted with owners have actually a point or 2 that castle love around the vehicle. Because that some, that is the auto clutch manual change and five-speed transmission. For rock crawlers, that is the super low first gear. It is the lack of a CVT belt (according to them, these belts require more to maintain). And for the working John, that is the wheeler’s mid-range power and towing capacity.

Riders appreciate missing out on having actually a turbo lag when letting off and quickly getting earlier on the throttle. Farmer marvel at the quad’s ability to traction 12-foot logs with no difficulty. Human being who have bought the automobile say that they do a good choice in choosing the large Bear over the Wolverine, and most choose the manual-shift transmissions end the more recent trims that came out.

Yamaha huge Bear 400 top Speed

The huge Bear top speed is 52 mph on stock – yet only averages approximately 45 mph for most owners. While the quad is expected for tough work and also low-end grunt, there room a few Yamaha big Bear 400 components that you deserve to upgrade to enhance its top-end speed and power delivery and also its look and also off-road readiness. Right here are a couple of of them:

New rims and taller tires2-inch bracket liftSnorkel kit and new fuel present (great because that water crossing and mud holes)LED lamp to replace the Krypton bulbsWinchHMF power exhaustBigger key jet in the carburetor for much more powerFull ship steel skid plates and A-arm protectors (if you carry out a many rock crawling)

A word to the wise – power mods to your engine will certainly not do you struggle a optimal speed of above 60 mph as result of the gear ratio on this wheelers – meaning transforming the gear ratio is the foremost point you have to do. If you intended to save the straight drive shaft and also rims stock, the only method to go is to acquire bigger tires. However, tires bigger 보다 25″ (stock come mount) are tough to come by – friend may end up spending over $750 for tradition rims and also rubber.

More about the big Bear

What fuel need to I usage for the Yamaha big Bear 400? You should use continual unleaded gasoline through a pump Octane variety of 86+ and a research Octane number of 91 or higher. 4 united state gal/15 liters need to be sufficient to fill your tank. Leaded gasoline can be used yet only together a critical resort. Also, usage fuel with much less than 10% ethanol and less 보다 5% methanol, as these variants may damages the fuel device or cause car performance issues.How carry out you readjust the oil on a Yamaha large Bear 400? Before friend start, make sure to have actually a socket wrench set, an oil record basin, brand-new oil, and a filter. As soon as you have actually these, girlfriend will first have to park your ATV top top level ground, access the drainpipe plug close to the bottom that the oil pan, drainpipe out every the oil, screw a brand-new oil filter in place, to fill the machine with the recommended amount of oil, then start your ATV and check the the oil gauge is in ~ the normal range.Does the Yamaha huge Bear 400 have actually flaws? For secondhand large Bear purchases, the wheeler would naturally have actually washed-out plastics and also rusted racks. Aftermarket brake shoes room too small for the behind drum. Furthermore, some huge Bears experience recurring, uncertain battery drain.What is the Yamaha big Bear worth? The perform prices of the Yamaha large Bear 400 range from $5,399 come $6,599, depending on model year, trim, and added accessories. Camo-styled trims room the most expensive of the lot. The median retail value is between $1,175 and also $4,050 based on Nada travel guide pricing. Kelly Blue publication value for a 2001 Yamaha huge Bear 400 is $1,510 once trading in in ~ a dealership.

About Yamaha

Yamaha motor Company minimal is known as a world leader in motorsports that has actually spawned the ATV industry in the ’80s. The Japanese continue to develop a wide array of life-enriching products and also services – including motorcycles, off-road vehicles, an individual watercraft, rate boats, and also outboard motors. The mission of creatingKandois ever-present in the product offerings and services. In ~ present, Yamaha continues to innovate, excite, accumulate confidence, and strengthen ties to expand its offerings worldwide.

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Conclusion – Yamaha large Bear 400

The Yamaha huge Bear 400 is challenging as nails and thrives under battlefield conditions. Whether you room on 10,000 feet that elevation, in very high or sub-zero temperatures, or top top slick or outlet terrain, the never fails to deliver. It may not it is in a hotshot by today’s standards. Yet during that time, the was one of the most innovative multifunctional four-wheelers ~ above the market. This revolutionary four-wheeler has and also continues to knife itself a exceptional reputation.