1991-1992 Kawasaki KX125, KX250 Factory Service Manual (P/N 99960-1040-01)

• Covers 1991–1992 Kawasaki KX125 and KX250 models, providing exact factory specifications and service protocols for the K1 variant.
• Official factory service publication PN 99960-1040-01 detailing maintenance for 2-stroke engines and chassis components.
• Features 47 exploded-view diagrams for system assembly and 11 distinct torque-specification tables.

This 1991–1992 Kawasaki KX125/KX250 service manual is the definitive reference for factory-level maintenance. It details engine performance metrics, cooling system layouts, and drive train configurations specific to the K1-series. Working on high-performance 2-stroke engines and suspension systems carries inherent risks; always ensure you have the correct tools, safety gear, and a stable workspace before beginning any diagnostic or tear-down procedure.

Inside the Manual:

This documentation provides a logical, step-by-step breakdown of all KX125 and KX250 systems. Chapters cover routine maintenance schedules, fuel system routing, cooling infrastructure, and engine internals. You will find specific tear-down and reassembly illustrations for the engine top end and right side, covering the piston, cylinder, clutch, and external shift mechanisms. The guide also reviews suspension, steering, and electrical system diagnostics, concluding with specialized supplements for 1995–1998 models.

Key Technical Specifications:

Technical depth is established through exact factory tables covering clearances, capacities, and torque limits to speed up your workflow.

• Cylinder compression: 755–1180 kPa (KX125) / 780–1220 kPa (KX250).
• Primary reduction gear torque: 59 N-m (43 ft-lb) (KX125).
• Transmission oil capacity: 0.7 L (KX125) / 0.85 L (KX250).

Reviewing what an OEM service publication covers helps technicians navigate these assembly protocols efficiently, reducing guesswork on the bench.