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1998 Yamaha YFM400F Kodiak 400 Specs

by Brianna Collins

Though no longer in production, Yamaha's Kodiak make of utility ATV was relatively popular, lasting well into the 2000s. Built to be particularly rugged and inexpensive, the 1998 400-cc version featured many engineering specs similar to those found in later models, including a powerful engine, versatile systems and effective shocks/brakes.

Engine

The 1998 Kodiak came equipped with a four-stroke, forward-inclined, single-cylinder engine with a single overhead camshaft design. It had a displacement of exactly 386 cc (23.56 cubic inches), a bore and stroke of 3.27 by 2.81 inches and a compression ratio of 8.6:1.

Systems

Equipped with an electric and recoil starter, the 1998 Kodiak 400 also came with a wet sump lubrication system, a Mikuni BTM32SH/1 carburetor and a wet centrifugal automatic clutch. The transmission featured a constant mesh system with five speeds and could be operated by the driver's left foot. Its primary reduction system was a spur gear, and its secondary was a shaft drive.

Chassis and Suspension

The Kodiak 400 was built on a steel-type frame and had a 2.5-degree caster angle and 0.59-inch trail. The front suspension was a double-wishbone, while a swing-arm protected quad and rider in the rear. Both front and back also came equipped with a coil-spring/oil damper shock absorber.

Brakes and Tires

Drum brakes were located in both front and back of the 1998 Kodiak 400, operated in the front by the driver's right hand and operated in the back by left hand and right foot. Tires were tubeless and were sized AT25X8-12 in the front and AT25X8-10 in the rear.

Measurements

The 1998 Kodiak measured 77.0 inches in length, 45.5 inches in width and 45.0 inches in height and weighed 630.0 pounds. The seat height was 32.9 inches, the wheelbase was 47.8 and the minimum turning radius was 137.8. With a relatively large ground clearance of 8.5 inches, the Kodiak was designed to easily travel over bumpy and uneven trails. The fuel tank capacity was 3.6 gallons with a reserve of 0.34.

About the Author

Brianna has been writing professionally since 2009. She has a Bachelor of Fine Arts degree and is excited to be part of a community that contributes to the free sharing of information and ideas.

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