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What Type Of Oil Does A Yamaha 350 Big Bear Take?

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Last updated on 11 min read

A Yamaha Big Bear 350 typically requires SAE 10W-30 or 20W-40 4-stroke oil that meets JASO MA/MA2 and API SG or higher specifications, such as Yamalube 4-Stroke Oil. It usually takes about 2.7 US quarts (2.5 liters) when changing the oil and filter.

What kind of oil does a Yamaha Bear Tracker take?

The Yamaha Bear Tracker (YFM250) typically requires SAE 10W-30 Yamalube 4-stroke oil or an equivalent that meets JASO MA/MA2 and API SG or higher specifications.

For a standard oil change without replacing the filter, you'll need about 1.6 US quarts (1.5 liters). If you're also swapping out the oil filter, the capacity increases slightly to 1.7 US quarts (1.6 liters). Seriously, always check your specific model year's owner's manual for precise capacities and the most up-to-date oil recommendations. Oh, and remember to use oil specifically designed for wet clutches; that'll prevent slippage and premature wear. A good option is Yamalube 4-Stroke Oil 10W-30 (Part #ACC-10W30-SL-12), and for an oil filter, consider a K&N KN-140 or Hiflofiltro HF140.

How much does a Yamaha Big Bear 350 weight?

The Yamaha Big Bear 350 4WD model typically weighs around 564 lbs (256 kg) dry.

Now, this "dry weight" figure means the ATV is without fuel, engine oil, or coolant, so expect the operational weight to be a bit higher once it's fully prepped for a ride. That weight really impacts the ATV's handling, its towing capacity, and even the kind of trailer or towing vehicle you'll need for transport. Always make sure your towing setup can safely handle the combined weight of the ATV, any cargo, and the trailer itself. For the most precise specs for your exact model year, just consult your owner's manual or a reliable ATV database like ATV.com.

Can you use car oil in ATV?

No, you should not use standard car oil in an ATV, especially if it has a wet clutch system (which is pretty common in many Yamaha Big Bear models).

Here's why: Car oils often contain friction modifiers designed to improve fuel economy in automotive engines. But these additives can actually cause your ATV's wet clutch to slip. This slippage leads to poor power transfer, accelerated clutch wear, and potentially some really expensive damage to your clutch plates. Instead, you'll want to opt for ATV-specific oils, like Yamalube or quality synthetics from reputable brands such as AMSOIL or Maxima. These are formulated with additive packages that give proper lubrication for the engine, transmission, and wet clutch, all sharing the same oil. Always look for oils that meet the JASO MA or MA2 standard, because this certification ensures compatibility with wet clutch systems. Honestly, using the right oil is super important for your ATV's lifespan and how well it performs. And, of course, always consult your owner's manual for specific recommendations.

How fast does a Yamaha Big Bear 350 go?

A stock Yamaha Big Bear 350 typically hits a top speed of about 40 mph (64 km/h).

Now, keep in mind that the actual top speed can vary a lot depending on several things: the rider's weight, the type of terrain you're on, your tire pressure, and how well the ATV has been maintained. Yamaha actually designed the Big Bear 350 as a tough utility ATV, focusing on low-end torque and durability for work tasks and challenging trails, rather than blistering high-speed performance. Always wear a helmet and appropriate safety gear when you're riding, and don't forget that ATVs aren't meant for public roads or really fast speeds. According to the NHTSA, ATV safety is incredibly important, and going faster than the manufacturer recommends can be dangerous.

How fast does a Yamaha Big Bear 400 go?

The Yamaha Big Bear 400 typically reaches a top speed of about 52 mph (84 km/h) in stock configuration, though most owners usually report averaging closer to 45 mph during everyday riding.

Just like with other ATVs, its actual performance is influenced by things like rider weight, the terrain, tire condition, and how well the engine is tuned. While it *can* go at a moderate speed, the Big Bear 400 is really known for its awesome low-end torque, rugged build quality, and overall reliability. These traits make it a fantastic choice for demanding utility tasks, hunting trips, or tackling tough off-road trails where raw power and dependability matter more than pure speed. Always put safety first and ride within your skill level and the ATV's limits.

How much is a 2000 Yamaha Big Bear 400 worth?

As of 2026, the market value for a used 2000 Yamaha Big Bear 400 can vary widely, typically ranging from $1,500 to $3,500, depending on its condition and where you're looking.

Back in 2000, a new Yamaha Big Bear 400 would've retailed for about $5,399 for standard colors (like red, green, or beige). Special editions, such as the Buckmaster Edition, were a bit pricier, around $5,695. Today, its worth really depends on its overall shape, how many miles it's racked up, if it has a documented maintenance history, and any aftermarket accessories it might have. For the most accurate current valuation, checking resources like Kelley Blue Book (KBB) or NADAguides is your best bet; they provide values based on regional market data for used powersports vehicles. Before you buy, always physically inspect a used ATV or, even better, have a qualified mechanic do it to assess its true value and spot any hidden problems.

What year did the Yamaha Big Bear 400 come out?

The Yamaha Big Bear 400 first hit the market in 1999, stepping in to replace the Big Bear 350 as Yamaha's go-to mid-size utility ATV.

This model quickly became popular thanks to its tough design, reliable performance, and features geared toward utility work. Yamaha kept producing the Big Bear 400 for many years, rolling out various updates and improvements, including adding independent rear suspension (IRS) on some models. The Big Bear 400 series was a real workhorse in Yamaha's ATV lineup for over a decade, known for its dependability among hunters, farmers, and trail riders alike. Production for the Big Bear 400 series continued until about 2012, when newer models like the Grizzly and Kodiak lines eventually took its place, according to powersports history resources like Wikipedia.

What kind of oil does a Yamaha Big Bear 400 take?

The Yamaha Big Bear 400 typically requires SAE 10W-30 or 20W-40 4-stroke oil that meets JASO MA/MA2 and API SG or higher specifications.

Yamaha, for its part, specifically recommends their Yamalube 4-Stroke Oil; it's formulated just for their engines and wet clutch systems. For a complete oil change, filter included, you'll generally need about 2.7 US quarts (2.5 liters) of oil. But hey, always double-check the exact capacity in your owner's manual. Using oil that meets the JASO MA/MA2 standard is super important to prevent clutch slippage, especially since this ATV uses a wet clutch system where the engine and transmission share the same oil. You can usually find Yamalube at any authorized Yamaha dealership or online, with part numbers like ACC-10W30-SL-12 for 10W-30 or ACC-20W40-SL-12 for 20W-40. As for an oil filter, popular choices include the K&N KN-145 or Hiflofiltro HF145.

Where is the oil drain plug on a Yamaha Big Bear 400?

The oil drain plug on a Yamaha Big Bear 400 is typically located on the bottom of the engine crankcase, usually on the left side near the center or front of the machine.

To find it, you'll need to look underneath the ATV, often tucked behind the front skid plate or some frame members. It's usually a big bolt, commonly a 17mm or 19mm hex head, specifically designed to let oil drain from the engine. Before you remove it, always place a drain pan (at least 3 quarts, please!) directly beneath the plug to catch all that old oil. Make sure the engine is warm, but not scorching hot; that helps the oil flow out better. And definitely wear appropriate safety gear, like gloves and eye protection. For an exact diagram and the right torque specs for putting it back, check your owner's manual. It's typically around 25-30 ft-lbs (34-41 Nm) for the drain plug. This prevents you from overtightening and stripping the threads, or undertightening and causing leaks.

What type of oil does a 2002 Yamaha Big Bear 400 take?

A 2002 Yamaha Big Bear 400 needs SAE 10W-30 or 20W-40 4-stroke oil formulated for wet clutches, meeting JASO MA/MA2 and API SG or higher specifications.

Yamaha, naturally, specifically recommends its Yamalube 4-Stroke Oil for the best performance and protection for both the engine and transmission. For a full oil and filter change, you're typically looking at about 2.7 US quarts (2.5 liters). It's really important to use an oil that clearly says "JASO MA" or "JASO MA2" on the label. Why? Because these standards ensure the oil plays nice with the wet clutch system in your Big Bear, which stops slippage and premature wear. Always check your 2002 Big Bear 400 owner's manual for the most precise recommendations and capacities, since specs can sometimes differ a bit by model year or even region. You can grab Yamalube at Yamaha dealerships (like Yamaha Motor Dealers) or from online powersports retailers.

Where is the year on a Yamaha Big Bear 400?

You can find the year of a Yamaha Big Bear 400 by locating its Vehicle Identification Number (VIN), which is typically stamped right on the frame.

The VIN is a 17-character alphanumeric code, and the tenth character from the left usually tells you the model year. For most Yamaha ATVs, this VIN tag is located on the front left frame rail, near the front left wheel, or sometimes on the frame crossmember right under the seat. Once you find the VIN, count ten characters in; for example, a "Y" would indicate a 2000 model, a "1" would indicate a 2001 model, and so on. (You'll find a full breakdown in the next section!)

How do I tell what year my Yamaha Big Bear is?

To figure out the year of your Yamaha Big Bear, you'll need to locate the Vehicle Identification Number (VIN) and decode its 10th character.

The VIN's a super important identifier, typically found stamped right on the main frame rail. You'll often spot it on the left side near the front wheel or maybe even under the handlebars. Once you find that VIN, identify the 10th digit from the left. This character corresponds to the model year. Here's a quick guide for common Big Bear 400 years (it's pretty handy!):

10th VIN Digit Model Year
Y 2000
1 2001
2 2002
3 2003
4 2004
5 2005
6 2006
7 2007
8 2008
9 2009
A 2010
B 2011
C 2012

Honestly, this method is the most accurate way to pinpoint your ATV's exact model year.

How do you shift a big bear 400?

Shifting a Yamaha Big Bear 400 (which typically has a semi-automatic transmission with a manual foot shifter) means you'll be pressing the foot lever down for lower gears and lifting it up for higher gears.

People often call this system a "clutchless manual" because you physically shift gears with your foot, but there's no hand-operated clutch lever to worry about. The standard pattern goes 1-N-2-3-4-5. So, to downshift, you press the lever down; to upshift, you lift it up. You'll want to ease off the throttle just a bit when shifting. That'll help ensure smooth engagement and prevent unnecessary wear on those transmission components. Just practice in a safe, open area until you feel comfortable with the shifting pattern.

How do you reverse a big bear?

To get your Yamaha Big Bear 400 into reverse, you typically need to be in neutral first. Then you'll pull a dedicated reverse lever or button, and finally, shift the foot lever down into the reverse gear.

Now, the exact procedure can vary a little bit by model year, but usually, you'll spot a small red or yellow lever or button on the left handlebar that acts as a reverse lockout. So, with the ATV completely stopped and the engine idling, shift that foot lever into neutral. After that, pull and hold this reverse lockout lever/button, and then just press the foot shifter down one click. That should engage reverse. Just make sure you look behind you and go slowly when backing up, because ATVs can be less stable in reverse, and your visibility might be limited (so be extra careful!).

How many gears does a Yamaha Big Bear have?

The Yamaha Big Bear 400 typically comes with a 5-speed semi-automatic transmission, plus an additional reverse gear.

So, yeah, it's got five forward gears and one dedicated reverse gear, which gives you a pretty good range for both utility work and hitting the trails. The transmission itself is a constant mesh design. What that means is it allows for really robust and reliable gear changes, even under different loads. This whole gearing setup is what gives the Big Bear 400 its reputation for strong low-end torque, making it super capable of tackling tough terrain and hauling loads effectively.

This article was researched and written with AI assistance, then verified against authoritative sources by our editorial team.
FixAnswer Automotive Team
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