Motorcycle Segment:
Lightweight cruiser motorcycle.
Target Audience:
New riders, custom enthusiasts, owners seeking to perform their own maintenance and repairs.
Contemporary Competitors:
Honda Rebel 250, Yamaha Virago 250, Suzuki Intruder 250, Kawasaki Eliminator 125.
Ease Of Use:
Handy, easy-to-read reference book with sequential step-by-step explanations.
Applicability:
Specifically tailored for the 1988 Cagiva Cruiser 125 model.
Target User:
Mechanics and DIY persons.
Engine Mechanical:
Engine disassembly, assembly, inspection, troubleshooting, performance tuning.
Fuel System:
Carburetor(s) servicing, fuel pump, fuel lines, fuel tank inspection.
Ignition System:
CDI unit, spark plugs, ignition timing, wiring.
Cooling System:
Radiator, coolant, hoses, thermostat (if applicable).
Exhaust System:
Mufflers, exhaust pipes, gaskets.
Transmission Drivetrain:
Clutch operation, gearbox disassembly/assembly, final drive, chain maintenance.
Frame Chassis:
Frame inspection, steering head bearings, swingarm, rear shock absorber mounting.
Suspension Front:
Front fork disassembly, inspection, seal replacement, oil levels, tuning.
Suspension Rear:
Rear shock absorber service, linkage maintenance (if applicable).
Brakes Front:
Brake caliper service, master cylinder, brake fluid, disc inspection, pad replacement.
Brakes Rear:
Brake caliper service, master cylinder, brake fluid, disc inspection, pad replacement (drum brake if applicable).
Wheels Tires:
Wheel bearing inspection, tire pressure, wheel mounting.
Electrical System:
Wiring diagrams, battery, charging system (alternator/stator), lighting, starter motor.
Bodywork Trim:
Fairings, fuel tank removal, seat, fenders, instrumentation.
Troubleshooting:
Diagnostic charts and procedures for common issues.
Preventative Maintenance:
Oil changes, filter replacements, chain lubrication, brake checks, tire pressure.
Basic Repairs:
Bulb replacement, cable adjustments, fluid top-ups, minor electrical fixes.
Major Repairs:
Engine rebuilds, transmission overhauls, suspension fork overhauls, brake caliper rebuilds.
Disassembly Assembly:
Step-by-step guides for component removal and installation.
Inspection Checks:
Detailed checks for wear, damage, and proper function of all components.
Adjustment Tuning:
Carburetor synchronization, ignition timing, clutch and throttle cable adjustments.
Depth Level:
Comprehensive, covering everything from basic maintenance to complete engine and gearbox overhauls.
Diagnostic Capability:
Advanced diagnostic procedures and troubleshooting guides for electrical and mechanical systems.
Rebuild Procedures:
Detailed instructions for complete teardown and rebuilding of major components.
File Format Details:
Assumed printed. If digital, likely PDF or scanned image files.
Print Quality Description:
Factory original quality; clear text, diagrams, and photographs/illustrations.
Binding Type Description:
Likely a stapled or perfect bound booklet, designed for workshop use.
Paper Type Description:
Durable, possibly glossy or semi-gloss paper to withstand workshop environments.
Engine Type:
Two-stroke, liquid-cooled, V-twin (Common configuration for Cagiva V-twin engines of this era).
Displacement:
124.5 cc (Commonly stated for 125cc class V-twins)
Bore X Stroke:
Approx. 43.0 mm x 43.0 mm (Estimated for a 125cc V-twin)
Compression Ratio:
Approx. 7.0:1 - 7.5:1 (Typical for older two-strokes)
Horsepower:
Approx. 14-16 HP @ 7,500-8,000 RPM (Estimated for class)
Torque:
Approx. 10-12 Nm @ 7,000 RPM (Estimated for class)
Carburetion:
Dual Mikuni VM20SS or similar 20mm carburetors (Common for this configuration).
Fuel Type:
Unleaded gasoline (91 octane or higher recommended)
Fuel Mixture:
Automatic oil injection system (Autolube).
Transmission Type:
6-speed constant mesh sequential gearbox.
Clutch Type:
Wet multi-plate clutch, cable operated.
Final Drive:
O-ring sealed chain drive.
Gear Ratios:
Detailed ratios for each gear will be specified in the manual (e.g., 1st: 2.833, 2nd: 1.875, 3rd: 1.350, 4th: 1.091, 5th: 0.917, 6th: 0.750 - Estimated).
Oil Change Interval:
Every 3,000 - 5,000 km or 6 months (Typical for this era, manual will specify).
Spark Plug Replacement:
Every 6,000 - 10,000 km (Typical, manual will specify exact type and gap).
Chain Adjustment Lube:
Every 1,000 km or as needed (Check tension and lubricate).
Engine Oil Type:
2-stroke engine oil, API TC or JASO FD certified (Manual will specify exact grade like SAE 10W-40 or specific Cagiva spec).
Transmission Oil Type:
API GL-4 or GL-5 gear oil, SAE 80W-90 (Manual will specify exact type and capacity).
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid (Manual will specify exact type and replacement interval).
Coolant Type:
Ethylene glycol-based antifreeze coolant, diluted 50/50 with distilled water (If liquid-cooled, manual will confirm).
Two Stroke Wear:
Piston ring and cylinder bore wear due to the nature of two-stroke engines. Regular decarbonization of exhaust ports and reed valves.
Carburetor Issues:
Cloggage due to fuel quality or age, requiring cleaning and synchronization.
Electrical Corrosion:
Corrosion in connectors and wiring harnesses, especially in humid climates.
Suspension Seals:
Leaking fork seals are common with age, requiring replacement.
