Kawasaki Z250/KZ305 Service & Repair Manual, 1979-1982

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Kawasaki Models Covered & Key Technical Specifications

Models: Kawasaki Z250, Kawasaki KZ305
Model Years: 1979–1982
Technical Data:

  • Engine: SOHC, 2-cylinder, 4-stroke, air-cooled
  • Displacement: 248 cc
  • Maximum Power: 27 HP at 10,000 rpm
  • Maximum Torque: 2.1 kg-m (15 ft-lbs) at 8,500 rpm
  • Transmission: 6-speed, constant mesh, return shift
  • Clutch: Wet, multi-disc
  • Carburetor: Keihin CV32 x 2
  • Final Drive Ratio: 7.79 (top gear)
  • Suspension: Telescopic front fork, swing arm rear
  • Brakes: Front and rear disc brakes
Technical Specifications
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Document Number / Seller:
31066 / Emily Taylor
File Size:
58.91 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Bike
Last updated / verified
Jun 12, 2026

Kawasaki Manual Features & Content Preview

  • Essential reference for the 1979–1982 Kawasaki Z250 and KZ305 motorcycles, tailored for shop mechanics and dedicated owners
  • Official Kawasaki publication (Fourth Edition, September 30, 1981) detailing factory-approved repair procedures and structural specifications
  • Features 74 exploded-view diagrams and 35 torque specification tables for accurate assembly
  • Authoritative factory reference covering the Z250-A1 and A2 production models

Documented Systems and Maintenance

This service manual outlines all critical engine, chassis, and electrical maintenance parameters. It details the precise methodology required for cylinder head disassembly, timing chain adjustment, and valve clearance verification. Need to evaluate the fuel system? The documentation breaks down the exact OEM layout. Additional sections focus on transmission overhauls, clutch plate maintenance, and drive chain slack adjustment. Complete diagnostic flow charts trace the interaction between the electrical, ignition, and fuel supply systems, eliminating guesswork from the diagnostic process.

Specification and Technical Reference

Detailed reference values provide the essential data for shop-floor work. For instance, the engine assembly data section specifies the cylinder head bolt torque at 2.5 kg-m (18.0 ft-lbs). The intake valve clearance is strictly listed at 0.14–0.19 mm. Electrical diagnostics are supported by precise figures, noting the alternator output at 13.5 amps at 8,000 rpm. This volume provides the exact structural guidance needed for engine removal or crankcase splitting, functioning as an essential factory reference for any classic motorcycle repair. Always ensure you cross-reference these factory specifications and adhere to standard shop safety protocols before initiating any mechanical work on these older bikes.

Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

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