Kawasaki KX125/KX250 1992-1993 Service Manual
Kawasaki Models Covered & Key Technical Specifications
Models: Kawasaki KX125-J1, Kawasaki KX250-J1
Model Years: 1992–1993
Technical Data:
- Engine: 2-stroke, liquid-cooled, single cylinder, crankcase/piston reed valve
- KX125 Displacement: 124 mL
- KX250 Displacement: 249 mL
- Transmission: 6-speed (KX125), 5-speed (KX250), wet multi-disc clutch
- Fuel System: KEIHIN PWK36 (KX125), KEIHIN PWK38 (KX250)
- Coolant Capacity: 0.93 L (KX125), 1.1 L (KX250)
- Frame Type: Tubular, semi-double cradle
- Braking: Single disc front and rear
Kawasaki Manual Features & Content Preview
- Official 236-page Kawasaki publication (first edition) covering the J1 series motorcycle architecture
- Details maintenance, assembly, and system inspections for all primary drivetrain, chassis, and electrical components on 1992–1993 KX125-J1 and KX250-J1 two-stroke models
- Features 47 exploded-view diagrams illustrating component assembly alongside complete routing schematics for all cables and hoses
- Includes 15 specialized torque specification tables and detailed maintenance schedules supporting routine service intervals up to every 10 races
Technical Documentation Overview
Segmented into fourteen chapters, this reference spans everything from general bike identification to complex engine, transmission, and electrical systems. It delivers exactly what a mechanic needs on the bench. Expect precise carburetor specifications. You will also find port timing diagrams and clutch assembly requirements alongside all necessary wear limits for the J1-series build. Working on high-performance two-stroke race bikes requires strict adherence to factory tolerances to maintain structural integrity and rider safety. Therefore, every section pairs exploded-view diagrams directly with torque values and locking agent application points. This takes the guesswork out of realigning major components like the water pump, cylinder head, and crankcase.
Specifications and Maintenance Data
Technicians gain access to extensive specification tables. These cover critical metrics like cylinder compression, piston-to-cylinder clearances, and clutch plate wear limits. Cooling system pressure testing is clearly documented at a maximum limit of 125 kPa, complete with mandatory filling and air-bleeding procedures to prevent localized overheating. Fluid capacities are exact. The transmission requires 0.7 L of oil for the 125 cc engine and 0.85 L for the 250 cc unit. Fastener torque specifications are equally strict: 25 N-m for the KX125 cylinder head, stepping up to 34 N-m for the larger KX250 variant.
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