Original Segment:
Entry-level sportbike, popular for its affordability, reliability, and sporty styling. Competed with Yamaha FZR400, Honda CBR250R.
Target Audience:
Beginner riders, commuters, and those seeking an affordable and fun sportbike experience.
Key Competitors 1988:
Yamaha FZR400, Honda CBR250R, Suzuki GSX-R250
Model Advantages:
Lightweight handling, fuel-efficient parallel-twin engine, accessible performance, and iconic Ninja styling.
Engine Character:
A rev-happy parallel-twin that provides a good balance of everyday usability and spirited performance.
Systems Covered:
General Information, Fuel System, Cooling System, Engine Top End, Clutch, Engine Lubrication System, Engine Removal/Installation, Crankshaft/Transmission, Wheels/Tires, Final Drive, Brakes, Suspension, Steering, Frame, Electrical System, Appendix
Estimated Pages:
Refer to actual manual for exact count, typically 300-500 pages for a comprehensive FSM
Coverage Scope:
Covers all service and repair procedures, offering comprehensive guidance.
Type:
Service Manual / Workshop Manual / Factory Service Manual (FSM) Supplement
Description:
Professional quality repair manual, equivalent to what dealership technicians use.
Digital Format:
PDF (downloadable via RAR archive)
Compatibility:
Compatible with all versions of Windows & Mac.
Engine:
Complete coverage including top end, lubrication, removal/installation, crankshaft, and transmission.
Fuel System:
Detailed procedures for fuel delivery, carburetor tuning, and components.
Cooling System:
Information on radiator, coolant, hoses, and fan operation.
Electrical System:
Comprehensive wiring diagrams, troubleshooting, and component testing for ignition, lighting, and charging systems.
Final Drive:
Details on chain maintenance, adjustment, and sprocket replacement.
Frame:
Information on frame integrity, welding points, and potential repair considerations.
Wheels Tires:
Information on wheel bearing replacement, tire pressure recommendations, and tire inspection.
Clutch:
Covers clutch operation, adjustment, and replacement of clutch plates and springs.
Maintenance:
Routine maintenance tasks such as oil changes, filter replacements, and fluid checks.
Diagnostics:
Troubleshooting guides and diagnostic procedures for common issues.
Repair:
Step-by-step repair instructions for all major components and systems.
Rebuilds:
Detailed procedures for engine, transmission, and carburetor rebuilds.
Chassis Component Repair:
Covers suspension adjustments, steering head bearing service, wheel bearing replacement, and brake caliper/master cylinder overhauls.
Electrical Troubleshooting:
Detailed diagnostic trees for electrical faults, including ignition timing and charging system checks.
Engine Rebuild:
Detailed steps for disassembly, inspection, and reassembly of engine components like pistons, rings, and bearings.
Depth:
Professional technician-level detail, suitable for both novice and experienced mechanics. Covers everything from basic adjustments to complete engine overhauls.
Diagnostics Detail:
Includes troubleshooting flowcharts and fault code diagnosis (if applicable to the electrical system of the era).
Special Tools:
Likely includes listings of specialized tools required for certain procedures.
Digital Requirements:
WinRAR/WinZip/7-ZIP for extraction, PDF reader for viewing.
Extraction Software:
WinRAR is recommended for extraction.
Searchability:
PDF format typically allows for text searching, greatly enhancing usability.
Digital Quality:
High-quality scans or digital reproduction ensuring clarity of text and diagrams.
Digital Access:
Instant download, no physical binding for the digital product.
Digital Readability:
Designed for clear on-screen reading and printing, with searchable text for easy navigation.
Engine Type:
Liquid-cooled, 4-stroke, DOHC, parallel-twin
Displacement:
248 cc (approx.)
Bore X Stroke:
55.0 mm x 52.4 mm (approx.)
Compression Ratio:
10.5:1 (approx.)
Horsepower:
Approximately 34-37 HP (varies slightly by market and tune)
Torque:
Approximately 18-20 lb-ft (varies by market and tune)
Top Speed:
Approximately 105-115 mph (depending on rider, conditions, and tune)
Carburetion:
Dual Keihin constant velocity (CV) carburetors, typically 30mm (specific model may vary)
Fuel Tank Capacity:
Approximately 4.0 gallons (15 Liters)
Oil Change Interval:
Refer to manual, typically every 3,000-5,000 miles or annually.
Valve Check Interval:
Refer to manual, typically every 6,000-12,000 miles.
Brake Fluid Change:
Refer to manual, typically every 2 years.
Engine Oil Type:
API SG or higher, SAE 10W-40 motorcycle specific recommended. Consult manual for precise specifications.
Coolant Type:
Ethylene glycol-based antifreeze, 50/50 mix with distilled water.
Fork Oil Type:
Refer to manual, typically SAE 10W or 15W fork oil.
Common Wear Items:
Carburetor synchronization, aging fuel lines, fork seals, and general wear on chain and sprockets are common for bikes of this age.
Electrical Reliability:
While generally robust, older wiring harnesses can develop corrosion. Regular checks are advised.
Carburetor Wear:
Diaphragms and jetting can degrade over time, affecting performance and fuel economy. Manual provides guidance for rebuilds.
Kawasaki Legacy:
Kawasaki has a long history of producing high-performance motorcycles, including iconic sportbikes and powerful engines.
Ninja Lineage:
The Ninja 250R (and its predecessor, the GPX250R) was instrumental in establishing Kawasaki's reputation in the sportbike segment, offering an accessible entry point for many riders.
Gp250R To Ninja250R:
The GPX250R designation was largely phased out in favor of the more globally recognized Ninja 250R branding.
Generation Period:
The first generation of the Ninja 250R/GPX250R ran from the mid-1980s through the early 1990s, with this 1988 model being a key year in its development.
