ATVs: A Complete Review Of The Yamaha Kodiak 400

If there is an ATV that has proven its overall effectiveness as a workhorse and multifunctional recreational vehicle, that’s going to be the Yamaha Kodiak 400. Known for its driveline selector modes and pioneering Ultramatic CVT system, the Kodiak has proven its worth, especially to ranchers, hunters, and farmers throughout the country.

The Yamaha Kodiak has garnered the respect of the ATV community because of its versatility and impressive qualities, such as its efficient and user-friendly features, among others. With its four-stroke, 401-cc, single overhead cam (SOHC) engine, this quad is a beast when you’re traversing across grassy plains, hard packs, or even snowy and muddy terrains.

Placing the easy-to-operate Ultramatic transmission on the left side of the vehicle earned the appreciation of the public because this design kept the rider’s right hand on the throttle lever. Also, the Kodiak’s combined use of the sprag and centrifugal clutch provided a smoother operation and reduced belt wear when upshifting and downshifting. These features gave the Kodiak 400 the recognition it deserves against other competing quads.

First launched in 1993, the Kodiak is first marketed as a multipurpose, hardworking quad. With its remarkable off-road and heavy-lifting capability, coupled with its reliable handling and innovative transmission system, this four-wheeler can step alongside the ranks of the Trail Boss, Rancher, or the FourTrax. Furthermore, the vehicle’s on-the-fly 2WD and 4WD drivetrain selector enables operators to traverse any terrain with ease, making the quad an all-around machine for trail explorations and other adventurous activities.

The more superior Yamaha Kodiak 450 took over the lineup as the 400 closed the curtains in 2006 after a lengthy 13-year production run. Nevertheless, the Yamaha Kodiak 400 continues to charm its admirers with its convenient and cutting edge controls, reliable and durable design, and a lasting legacy that can compete with any off-road during its heyday.

How Many 2WD/4WD Models Did the Yamaha Kodiak 400 Have?

Yamaha manufactured different trims and models of the Yamaha Kodiak 400 during its entire run, with each succeeding model enjoying the same admiration as the one before it. All in all, the Kodiak 400 produced a combined 2WD and 4WD 21 models, along with a few trims in 2001.

Primarily built as a transport and towing quad for hunters, ranchers, and other hardworking folks, the Yamaha Kodiak 400 also catered to people who enjoy exploring trails. With a near-bulletproof engine, great handling capability, and a single-speed constant mesh transmission system, the Kodiak proves that it’s a heavy-duty vehicle for grunt work.

The table below shows the different years and model numbers of the Yamaha Kodiak 400. Also included in the list are the different Kodiak 400 variants released alongside the base model.

Apart from the standard 2WD/4WD standard trims, Yamaha also launched different variants. These variants, which were released at the same time alongside their standard counterparts, are as follows:

How Much Would a Yamaha Kodiak 400 Cost?

The suggested retail value of a pre-owned Yamaha Kodiak 400 depends on the year of production and model type. Often, the quad’s overall condition also poses a huge factor to the price of a unit.  

According to www.nadaguides.com, both the 2005 and 2006 Yamaha Kodiak 400 (4WD) Camouflage has a suggested list value of $6,099 and $6,149, respectively. The ’05 has a low average retail cost of $1,860, while the average retail cost is $2,450. Meanwhile, the ’06’s low and average retail costs are $2,200 and $2,895 in that order.

On the other hand, a mint 2001 Yamaha Kodiak 400 4WD Hunter, probably the most popular in the Kodiak roster, may range anywhere from $2,880 to $4,205. However, if you’ve chanced upon a pre-owned, well-worn ’01 Hunter Edition, you might be looking at a machine that’s worth around $945 to $1,815.

The list below contains all the suggested list prices of every ATV that belonged in the standard 2WD/4WD Yamaha Kodiak 400 lineup. The corresponding low and average retail costs of each unit also are included in the table. All the information mentioned in the table is taken from www.nadaguides.com.

If you’re planning on getting a pre-loved Kodiak with a price that ranges from $1,500 to $2,000, you’ll be wise to check for any outstanding issues. These things may range from small things, such as a busted headlight, leakages, or a rusted axle. Moreover, a quad that costs no more than $700 is a sure nonrunner.  

Specifications and Other Features of the Yamaha Kodiak 400

Engine

A liquid-cooled, four-stroke, single-cylinder engine with a single overhead cam configuration provides power to the Yamaha Kodiak 400. The engine has a bore of 84.5 mm (3.33 inches) and a stroke of 71.5 mm (2.81 inches) and a displacement of 401 cc (24.5 cu in). The Kodiak has a whopping 10.5:1 compression rate which is delivered by a 33-mm BSR33SS Mikuni carburettor.

As for the Kodiak’s engine, it has an intake and exhaust valve diameter of 39.9 mm (1.5708 inches) to 40.1 (1.5787 inches), respectively. The intake cold valve clearance is 0.06 mm (0.0024 inches) to 0.10 mm (0.0039 inches), while the exhaust valve clearance is from 0.16 mm (0.0063 inches) to 0.20 mm (0.0079 inches).

Fuel

The Yamaha Kodiak 400 uses PON 86- or RON 91-grade unleaded gasoline. This badass quad has a 15-litre (3.96 US gal) fuel tank and a 4.5-litre (1.19 US gal) reservoir. Additionally, this all-terrain vehicle requires a fuel stabilizer if you plan to store your Kodiak for a long period without draining out the fuel. The amount of fuel stabilizer required per litre of fuel is 1.0 fl. oz. (7.5 cc).

Lubrication

For the Yamaha Kodiak 400’s wet-sump lubrication system, the engine uses Yamalube 4 or SAE 10W-30 oil. The oil should have a JASO T903 MA, MB classification, API grade. Other oil types, such as the SAE 5W-30, 20W-40, are ideal alternatives. However, the usage of these oil variants is dependent on the outdoor temperature. Make sure that the engine oil does not have the “Energy Conserving II” label on it.

For the differential gear oil, using SAE 80 API GL-4 Hyploid gear oil is recommended. If the GL-4 classification is not available, GL-5 or GL-6 are also acceptable alternatives for the Kodiak.

As for the Kodiak’s amount of oil required, a periodic oil change requires 2.3 litres (2.4 US quarts) and a filter change necessitates 2.4 litres (2.5 US quarts). On the other hand, 2.6 litres (2.7 US quarts) is needed when conducting an overhaul.

Ignition

The Yamaha Kodiak 400 uses an electronic starter switch, which is connected to the capacitor discharge ignition (CDI) system. Additionally, the quad is also equipped with a supplementary recoil pull starter, which serves as a backup in case the battery does not work.

This rec-utility ATV has an AC magneto as its generator system and uses an NGK DR8EA spark plug with an electrode gap specification of 0.6 (0.02 inches) ~ 0.7 mm (0.03 inches). As for the battery, the Kodiak uses YTX20L-BS with a 12 V, 18 Ah capacity.

Drivetrain/Transmission

This four-wheeler has a single-speed Ultramatic transmission system, with the inclusion of a reverse gear. The Kodiak uses a combination of sprag and wet-shoe, centrifugal-type clutches, which is designed to prevent belt wear. This design provides this ATV with excellent handling capability regardless of the terrain, be it swamp, mud, snow, or gravel.

The quad also has a 2WD/4WD On-Command driveline selector button that can be activated with a light thumb press. This feature enables the rider to traverse any trail, challenging or otherwise, while on the fly.

The Yamaha Kodiak 400’s primary and secondary reduction ratios are 2.55 – 0.75:1 and 7.944 (39/24×24/18×33/9), respectively. The list below features the Kodiak’s gear ratios for its sub-transmission range and reverse gears:

Suspension

The Yamaha Kodiak 400’s reliable handling comes mainly from its superior suspension system. This mean machine has an independent, dual A-arm, double-wishbone front suspension, while the rear suspension has a steel, swing arm design. The front A-arm suspensions of a stock Kodiak has front skid plates, which offer better protection.

Each suspension system is fitted with a pre-adjustable fork preload with coil spring and oil damper. The front wheel has 6.3 inches (160 mm) of travel. The rear wheel, on the other hand, has 7.1 (180.3 mm). Additionally, the 400 has a decent turning radius of 9.8 feet.  

Tyres

A stock Yamaha Kodiak 400 is fitted with a set of puncture-resistant, tubeless KT123 Dunlop AT 25 x 8-12 front tyres, while the KT127 Dunlop AT 25 x 10-12 for the rear. Both the front and rear tires require the same air pressure, which should be 25 kPa (0.25 kgf/cm_­­², 3.6 PSI). It is recommended that the tyre air pressure should be changed accordingly in case the tyres have been exposed to cold temperatures.

During instances in which the air pressure should be decreased, the minimum tyre air pressure for each tyre should not go below 22 kPa (0.22 kgf/cm², 3.2 PSI). Furthermore, when seating the tyre beads, the tyre air pressure should not go below or higher than 250 kPa (2.5 kgf/cm², 36 PSI). Note that the process of inflating the tyres should be done carefully and slowly or the tyre might burst.

Brakes

The Kodiak 400 is equipped with a dual hydraulic disc front brake, which can be operated using the right-hand lever. The sealed drum disc rear brake, on the other hand, can be operated using a left-hand lever or right-foot pedal.

Load and Towing Capacity

As a utility AT that’s built to handle grunt work other than recreation and exploration, the Yamaha Kodiak 400 has a towing capacity of massive 1,102 lbs. (499.9 kg). The vehicle load capacity of the Kodiak is 463 lbs. (210 kg).

The maximum capacity of the hitch tongue is 33 lb (15 kg). Apart from this, both the front and rear tube racks can handle 88 lbs. (40 kg) and 176 lbs. (80 kg), respectively. The quad also has a storage box that can take in 4.4 lbs. (2 kg). This quad has a dry weight of 514 lbs. (233.2 kg) and a curb weight of 584 lbs. (265 kg).

Dimensions                                   

The Yamaha Kodiak 400 has an overall length of 78.1 inches (1,984 mm), a height of 44.1 inches (1,120.1 mm), and a width of 42.7 inches (1,084.6 mm). This one-seater has a seat height of 32.6 inches (828 mm). The quad’s wheelbase is 48.5 inches (1,231.9 mm), while the ground clearance comes in at 9.7 inches (246.4 mm), which isn’t much of a tall order, considering that the Kodiak is a massive off-roader.

External Features

The quad’s steel chassis and plastic body are equally durable, much to the appreciation of Kodiak enthusiasts. The Kodiak’s frame has a caster angle of 4° and a 21-mm (0.83-inch) trail. While the Yamaha Kodiak 400 has different colour options, the units with a camouflage pattern are exclusive only to special edition models. 

The Kodiak’s handlebar controls consist of a light switch with high and low beam options, an engine stop switch, and a start switch. The front and rear brake levers, speed limiters, and the 2WD/4WD driveline selector switch are also located in the quad’s handlebar.

Moreover, this 514-pounder also has a rear brake pedal, floorboards, and indicator lights for the water temperature and drive select switch. Apart from that, the stock 400 comes with front and rear fenders, bumpers, as well as a front bash plate, and skid plates for the dual A-arms.

The Kodiak’s instrumentation includes a display for the fuel gauge, speedometer, and odometer. Additionally, it has a DC auxiliary jack with the inclusion of a protective cap. This ATV is mounted with Halogen headlights (Krypton in some models, like 2002), as well as brake and taillights.

How Fast Can a Stock Yamaha Kodiak 400 Go?

On a dirt road, a bone stock Yamaha Kodiak 400 can go from 45 to 55 miles an hour. Conversely, this utility workhorse can go from 65 to 67 mph on a hard-pack trail. However, there are several outside factors that can affect the quad’s speed regardless of the terrain.

Often, the type, size, and weight of the tyres can affect the Kodiak’s performance. In addition, the upgrades or mods installed in the four-wheeler also play a huge role in the 400’s output.

For anyone keen on upping the speed to their Yammie 400, experts and vets would typically recommend a usual concoction of aftermarket components for utility ATVs. These mods involve high-quality K&N air filters, slip-on exhausts, and a jet kit. The only tradeoff, if you have these upgrades on your Kodiak, would be a louder engine.

What Are the Pros and Cons of the Yamaha Kodiak 400?

There isn’t much that can be said about the Yamaha Kodiak 400 considering that it’s an exceptional utility ATV that can be used in different activities. Whether you like to ride and explore trails or perform a lot of heavy work, the 400 is the perfect quad for these occasions.

However, this heavy-duty vehicle isn’t blessed with the best of both worlds. The more these flaws will become more noticeable since we’re dealing with old ATV variants. With that said, below are some of the pros and cons of the Yamaha Kodiak 400.

Pros

Seat Ergonomics

Robustness and conquering virtually impassable terrains aren’t just this four-wheeler’s forte, as the Kodiak has several conveniences hidden under its sleeve.  One of these surprising features is the seat. Several owners are always blown away at how comfortable this all-terrain vehicle can be—a feature that many riders can attest even to this day. Also, the Kodiak 400 has a no-maintenance driveshaft, which gives operators one less thing to worry about. 

High Ground Clearance

As a utility off-road vehicle, high ground clearance is definitely a plus for the Yamaha Kodiak 400 as this feature allows the quad to traverse across any rough terrain. Whether you are headed to a muddy or rocky trail for a hunting trip or leisurely exploration, the Kodiak is sure to get you to your destination and back.

Impressive Suspension

Apart from the ground clearance, the Kodiak 400’s superb handling is worth noting just as its ability to clear out any trail, thanks to its superior suspension system. The dual A-arms and the swing arm work well with the vehicle’s powertrain, giving the rider a smoother, reliable ride throughout.

Cons

No Front Differential

With its impressive handling capabilities and reliable suspension system, the Kodiak can be a great quad for mudding and other activities. However, these terrains may require more traction capability, something which the Yamaha Kodiak 400 might struggle with as it has no limited front differential. Though the lack of which can pose a problem to some owners, it takes a highly experienced rider to get out of any sticky situation.

Choke Cable Freezing Up

A lot of owners have complained about the choke cable getting frozen up in cold weather. Though a frozen choke isn’t supposed to be a problem in most cases, this can be an issue in cases of emergencies. That’s because a blocked choke would end up with you either running rich or lean, which is not good for the Kodiak’s engine.

In case this happens, you can turn the quad’s engine on and warm up the cable. You may also place the ATV in a warm area, such as in a shed or garage. A blow dryer can also do the trick.

Additional Benefits and Disadvantages

Benefits

• Has a badass, rugged appearance
• No maintenance driveshaft
• Easy reverse gear shifting
• Great multipurpose vehicle for several chores, such as snow ploughing
• Muffled engine sound, unlike some rec-utility ATVs that belong to the Kodiak’s class
• On-Command system makes selecting 2WD/4WD driveline modes easier
• Shifting gears is a breeze, thanks to the Ultramatic transmission system
• Full floorboards provide support and cover for both feet.

Disadvantages

• Lacks an hour meter and trip odometer
• Brakes may require constant maintenance
• Rear-axle splines can be prone to rust and wear

What Makes the Yamaha Kodiak 400 a Superior Workhorse?

The Yamaha Kodiak 400 is a sturdy, all-around four-wheeler that can accomplish any type of grunt work you throw at it, whether it’s at the farm or ranch. That’s because power is the Kodiak 400’s speciality, thanks to its high-compression, 401-cc engine, a four-stroke engine with a forward-inclined design.

The Kodiak’s innovative Ultramatic CVT and driveline selector systems enable it to perform like a tractor.  Coupled with its impressive handling and suspension design, this beast of a machine can conquer any terrain that would have the competition to bow down.

Apart from these, the Kodiak 400 is endowed with a durable chassis, which allows this four-wheeler to withstand any punishment it is subjected to, making it the ideal vehicle for the rugged, hardworking types of people, like farmers, ranchers, and even hunters.  

About the Manufacturer

Yamaha Motor Company, Limited has been manufacturing motorcycles since the firm separated from the mother company, Yamaha Corporation, in 1955. Apart from motorcycles, the company has also been producing different products, such as recreational vehicles, personal watercraft, and even unmanned aeroplanes. The Japanese corporation is also known for ATVs, like the Yamaha Kodiak 400. Even today, Yamaha strives to better its products to provide and guarantee its beloved clients the satisfaction they need.

Final Takeaway

The Yamaha Kodiak 400 is a solid quad that generates enough power needed to haul heavy cargoes that can go up to twice its size. With its 401-cc, forward-inclined, high-compression engine, the Kodiak can turn from an unassuming quad to a monster machine that can get the job done.

The On-Command driveline selector switch and Ultramatic transmission system proved to be a formidable design combination that gave the Kodiak 400 the edge against competitors like Polaris and Honda. Moreover, despite its limitations, such as lack of a front differential, the Kodiak 400 handles itself well on seemingly impassable terrains, such as swamp holes and deep muddy trails. Apart from that, the vehicle’s excellent ergonomics, reliable handling and superior suspension systems prove that you do not have to sacrifice comfort over quality—and those are the criteria that everyone would want.