This manual covers a range of 125cc two-stroke motorcycles, including models such as the CX, Apache, Crono, and Freestyle. These Italian-manufactured machines represent a significant era for sporty, small-displacement motorcycles, popular in the 1980s and 1990s. Engineered for performance, these models typically feature a liquid-cooled, two-stroke single-cylinder engine with a 6-speed transmission and chain drive, delivering an engaging riding experience for enthusiasts. This comprehensive service repair workshop manual provides detailed guidance for the maintenance and repair of your 125cc two-stroke motorcycle. It covers all essential systems, including engine overhaul, fuel and ignition systems, electrical components, suspension, brakes, and chassis. With step-by-step instructions, troubleshooting procedures, and technical specifications, this manual is an invaluable resource for owners, DIY enthusiasts, and professional mechanics seeking to preserve the performance and longevity of their motorcycle. 🏷️ Basic Information Identification Make: Gilera Model: Various 125cc Two-Stroke Models Model Variants Mentioned: CX, Apache, Crono, Freestyle Engine Type Engine Configuration: Two-stroke Engine Displacement: 125cc (approximately) 👋 Introduction Market Position Target Audience: Gilera 125cc two-stroke motorcycle owners, DIY enthusiasts, professional mechanics Key Features Manual Value Proposition: Inexpensive way to maintain and repair the vehicle, dealer-level information Preview Option: Limited page preview available 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair for Gilera 125cc two-stroke motorcycles Specific Models Covered: Gilera CX, Gilera Apache, Gilera Crono, Gilera Freestyle Page Count Total Pages: 190 Manual Type Type: Service Repair Workshop Manual Language Language: English (implied by product description) Format File Format: PDF 📖 Manual Coverage Systems Covered Engine: Complete engine service, overhaul, and component repair Fuel System: Carburetor adjustment, cleaning, and overhaul Ignition System: Ignition timing, spark plug specifications, coil testing Electrical System: Battery, charging system, lighting, horn, switches, wiring diagrams Suspension Front: Front fork service, seals, oil, and general overhaul Suspension Rear: Rear shock absorber service, linkage maintenance Brakes: Brake system inspection, service, hydraulic components, pad replacement Wheels Tires: Wheel bearing service, tire inspection, and mounting Frame Chassis: General chassis inspection and maintenance Starter System: Electric starter system diagnosis and repair Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication Troubleshooting: Diagnostic procedures for common problems and system failures Repair: Step-by-step repair instructions for all major components and systems Disassembly Assembly: Complete disassembly and reassembly guidance for the entire motorcycle Technical Specifications: Torque values, clearances, fluid capacities, performance data Technical Depth Depth: Comprehensive, from basic maintenance to complete engine rebuilds and electrical diagnostics Illustrations: Hundreds of detailed photos and illustrations Documentation Standard: Dealer-level quality, suitable for DIY and professional mechanics 📊 Manual Specifications File Format Compatibility: All versions of Windows and Mac Reader Requirement: Adobe PDF Reader Print Quality Printability: All pages printable without restriction Binding Type Binding: Digital Download (PDF) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, two-stroke single cylinder (typical for this era/class) Performance Power Output: Variable by model, typically 15-25 HP (approximate for 125cc performance bikes) Torque Output: Variable by model, expected to be peaky in the mid-to-high RPM range Fuel System Fuel Delivery: Carburetor (e.g., Dell'Orto PHBH, PHBL series common) Fuel Type: Unleaded gasoline with two-stroke oil pre-mix or injection system (specifics vary by model) Lubrication Lubrication System: Premix or Automatic Oil Injection (depending on specific model and year) Cooling Cooling System: Liquid-cooled (typical for performance-oriented 125cc two-strokes) Ignition Ignition Type: Electronic Ignition (CDI or similar) 🔧 Transmission Standard Transmission Type: 6-speed constant mesh sequential gearbox Features Clutch Type: Wet multi-plate clutch Final Drive: Chain drive 📐 Dimensions Weights Dry Weight: Typically 110-130 kg (approximate for this class) 🛡️ Safety Features Active Features Braking System: Front disc brake, Rear disc brake (common configuration for these models) Passive Features Lighting: Headlight, taillight, turn signals 💡 Technology Features Infotainment Infotainment System: N/A (Focus is on mechanical and electrical systems for performance, not rider comfort/connectivity). Driver Assistance Driver Assistance Features: N/A Connectivity Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Dependent on specific model and oil type; typically every 3,000-5,000 km for gearbox oil. Spark Plug Replacement: Variable, but regular inspection and replacement recommended every 5,000-10,000 km, depending on plug type and usage. Air Filter Cleaning: Regular cleaning/replacement recommended, often every 5,000 km, or more frequently in dusty conditions. Fluid Specifications Gearbox Oil Type: Refer to specific model recommendations, generally SAE 10W-30 or 10W-40 API GL-4 or GL-5 gear oil. Coolant Type: Ethylene glycol-based antifreeze coolant with distilled water (50/50 mix typical). Known Issues Two Stroke Wear: Piston ring wear, cylinder bore wear, exhaust port carbon buildup, reed valve wear are common for high-performance two-strokes of this era. Carburetor Issues: Clogged jets, worn float needle, vacuum leaks can affect fuel delivery and engine performance. Electrical System Wear: Corroded connectors, failing voltage regulators, worn stator windings are possible age-related issues. Suspension Leaks: Front fork seal leaks and rear shock absorber degradation are common with age and mileage. 📚 Vehicle...