1986–2002 Kawasaki Ninja 250R, GPZ 250R, ZZ-R250 Factory Service Manual and Supplement (P/N 99924-1066-01)

• 379 PDF pages total — 237-page Ninja250R/GPZ250R base service manual P/N 99924-1066-01 and 142-page ZZ-R250 service supplement P/N 99924-1129-57. The set uses 16 core system chapters plus dedicated 2000–2001 and 2002 update sections.
• Coverage is model-code specific rather than a blanket continuous year range: EX250-E1/E2 in the base manual, plus ZZ-R250 EX250-H1, H2, H3, H4, H5, H7, H10, H11, H12, and H13 in the supplement. The H-model application table lists 1990–1994, 1996, and 1999–2002 with beginning-frame-number references; it does not list 1995, 1997, or 1998. Match the motorcycle by model code and frame-number entry, not by the calendar-year span alone.
• The fuel chapters distinguish the Keihin CVK32 carburetors used in the E-series material from the CVK30 units in the H-series supplement, with removal, separation, cleaning, inspection, fuel-level adjustment, and synchronization procedures.
• Cooling and engine-top-end coverage includes system pressure testing, coolant filling and air bleeding, coolant-filter service, water-pump/radiator/thermostat work, compression testing, cylinder-head service, camshaft-chain timing, valve-clearance adjustment, valve-seat repair, and piston/cylinder inspection.
• Drivetrain procedures address clutch removal and inspection, oil-pump service and oil-pressure testing, engine removal/installation, crankcase splitting, crankshaft/connecting-rod and balancer inspection, starter-clutch service, transmission-shaft disassembly, shift-drum and fork inspection, and final-drive alignment.
• Chassis repair coverage includes wheel and tire service, hub bearings, brake caliper and master-cylinder disassembly and assembly, brake-line bleeding, fork disassembly and oil-seal service, Uni-Trak and swingarm work, steering-stem removal and bearing service, and fairing, fender, footpeg, and rear-frame work.
• Electrical diagnosis covers charging, ignition, starter, lighting, cooling-fan, meter, switch/sensor, junction-box, relay, diode, and wiring circuits, supported by model- and region-specific wiring diagrams, circuit schematics, exploded views, torque/locking-agent tables, wear limits, clearances, and electrical test specifications.

Manual Set, Editions, and Scope

The base manual is First Edition (3), dated March 3, 1989. The ZZ-R250 supplement is Seventh Edition (1), dated June 25, 2001. Both publications cover Kawasaki’s liquid-cooled, 248 mL DOHC two-cylinder platform, but the carburetion, chassis, regional equipment, and electrical details change between the EX250-E and EX250-H versions.

The supplement is not a stand-alone replacement for the base publication. It documents procedures and specifications unique to the EX250-H models and directs the technician back to the base manual for unchanged repair work. Chapter 17 contains the EX250-H10/H11/H12 updates, including revised fuel-system data, brake changes, electrical specifications, charging/ignition/starter circuit diagrams, and separate European-model and Canadian-model wiring diagrams. Chapter 18 covers the EX250-H13 with updated general specifications and engine-lubrication requirements.

Regional callouts distinguish U.S./California, Canadian, Australian, Austrian, Finnish, Greek, Swiss, European, Italian, and Dutch-market configurations where the manual flags differences in emissions equipment, carburetion, final-drive data, lighting, or wiring.

Engine and Drivetrain Repair Detail

The engine chapters go well beyond routine tune-up material. Cylinder-head coverage includes camshaft oil-clearance checks, cam-chain and guide wear, head warp, valve-to-guide inspection, valve-seat reconditioning, piston-ring groove and end-gap checks, cylinder-bore and piston measurement, and boring/honing guidance. The crankshaft/transmission chapter adds connecting-rod bend and twist checks, bearing-insert and journal inspection, crankshaft runout and side clearance, balancer service, gear backlash, shift-fork and drum-groove wear, gear-dog damage, and ball/needle-bearing inspection.

Factory cautions identify repair traps that matter during assembly. The camshaft caps are machined with the cylinder head and must remain in their identified positions; mixing them can produce incorrect oil clearance and camshaft seizure. The clutch spring plate must be indexed to its matching marks, since incorrect alignment can cause clutch drag or slipping.

Diagrams, Test Data, and Special Tools

Visual references include the Engine Oil Flow Chart, the EX250-H1/H2/H3/H4 Wiring Diagram, the EX250-H5/H7 Wiring Diagram (Australia Model), the EX250-H5 Wiring Diagram (Europe Models), and the 2000–2001 Europe and Canada wiring diagrams. Exploded assembly views cover the carburetors, cooling system, cylinder head, clutch, lubrication system, crankshaft/transmission, wheels, brakes, suspension, frame, and electrical components.

Named Kawasaki service tools include the 57001-1198 vacuum gauge and 57001-1017 fuel-level gauge for carburetor work, the 57001-164 oil-pressure gauge with 57001-1188 adapter, the 57001-1219 front-fork oil-seal driver, and the 57001-983 hand tester for electrical checks. Related chapters provide component-specific torque tables, locking-agent and sealant notes, pressure-test specifications, inspection limits, wear data, adjustment values, and electrical test values.

Fuel-system work involves flammable gasoline, cooling-system service can expose hot pressurized coolant, and brake or electrical repair requires proper workshop isolation, fluid handling, and test equipment.