1998 KX125 Specifications

Kawasaki has long been known for manufacturing quality off-road recreational vehicles, and its motorcycles in that genre have been highly popular. Among the motocross models Kawasaki has manufactured over the years is the KX125, which riding enthusiasts love both for its performance and for endurance.

  1. Engine

    • The 1998 Kawasaki KX125 came with a water-cooled, 124 cubic centimeter two-stroke transverse-mounted engine with a single cylinder that produced 38 horsepower, with torque of 18 foot pounds. Bore and stroke were 2.2 inches by 1.97 inches, and compression was 1:3:1 at low speed and 8:7:1 at high speed. The carburetor was a Keihin PWK36 with power jet. The top speed was approximately 60 miles per hour.

    Transmission

    • The gearbox for the KX125 was a manual six-speed with wet multiple discs and a chain drive. The gearbox for the KX125 was a manual six-speed with wet multiple discs and a chain drive. Gear rations were first, 2.384; second, 1.857; third, 1.529; fourth, 1.294; fifth, 1.125; and sixth, 1.000.

    Suspension

    • The KX125 had a rugged steel, double-cradle frame. The front suspension featured an upside down shock cartridge with the fork at an angle of 26 degrees and 12.2 inches of suspension travel. The rear suspension was a monoshock with a swing arm.

    Dimensions

    • The curb weight of the KX125 was 196.2 pounds. It was 84.1 inches long by 32.1 inches high and 47.8 inches wide, with a wheelbase of 59.9 inches. Ground clearance was 36.81 inches and the seat height was 37.2 inches.

    Other info

    • The KX125 had a kick starter. Semi-synthetic oil was recommended for its engine. The bike took a 80/100 R21 tire on the front and a 100/90R19M tire on the rear. It had front and rear hydraulic disc brakes, and the fuel tank held 2.25 gallons. The recommended spark plug was an NGK BR9EVX . The bike came in one color -- lime green. Gas and oil for the engine was mixed at a ratio of 32 to 1, while a mix of 50 percent water and 50 percent antifreeze was recommended for its cooling system.