Target Audience:
Owners, mechanics, and enthusiasts seeking in-depth knowledge for the Gilera CX 125 2-stroke.
Manual Value Proposition:
Provides professional-grade repair information, comparable to manuals used by dealership technicians, enabling self-sufficiency in maintenance and repairs.
Feature 1:
Comprehensive A-Z repair coverage.
Feature 2:
Detailed explanations with high-quality illustrations and diagrams.
Feature 3:
Troubleshooting guidance for efficient problem diagnosis.
Feature 4:
Instant digital delivery for immediate use.
Engine:
Complete engine disassembly, assembly, tuning, and troubleshooting.
Clutch:
Clutch inspection, adjustment, and replacement procedures.
Transmission:
Gearbox inspection, repair, and related component servicing.
Cooling Systems:
Radiator, hoses, coolant, and thermostat servicing for liquid-cooled models.
Fuel System:
Carburetor (e.g., Dell'Orto PHBH, PHBL) overhaul, adjustment, fuel lines, and fuel pump (if applicable).
Exhaust System:
Exhaust pipe, silencer, and expansion chamber inspection and maintenance.
Ignition System:
Spark plug, ignition coil, CDI unit, stator, and wiring diagnosis and repair.
Electrical System:
Battery, starter motor (if applicable), lighting, indicators, horn, and wiring harness troubleshooting.
Brakes:
Front and rear brake system servicing, including caliper, master cylinder, brake lines, pads, and discs.
Wheels And Tires:
Wheel bearing maintenance, tire pressure checks, and tire replacement guidelines.
Steering And Suspension:
Front fork (e.g., Marzocchi, Paioli) disassembly, seal replacement, oil levels, and rear shock absorber servicing.
Frame And Bodywork:
Chassis inspection, fairing removal and installation, seat, fuel tank, and plastics maintenance.
Wiring Diagrams:
Comprehensive electrical wiring schematics for all systems.
Fault Finding Troubleshooting:
Systematic diagnostic procedures for common and complex issues.
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication, and general upkeep.
Repair:
Detailed step-by-step instructions for all mechanical and electrical repairs.
Overhaul:
Complete engine, gearbox, and suspension component overhauls.
Adjustment:
Carburetor, clutch, brakes, and suspension adjustments.
Diagnostics:
Troubleshooting guides for identifying and resolving mechanical and electrical faults.
Depth:
Professional quality information, suitable for technicians and advanced DIY users.
Detail Level:
All major repair topics covered in great detail, including high-quality pictures and diagrams.
Compatibility:
Works on all operating systems (PC & MAC), including Windows 95, 98, 2000, Me, XP, Vista, Windows 7 & 8, and later.
Searchability:
Typically searchable text within PDF format for easy information retrieval.
Image Quality:
High-quality pictures and diagrams included for clarity.
Delivery Method:
Instant Download
Digital Format Benefits:
No waiting, immediate access for repairs.
Engine Displacement:
125cc (Cubic Centimeters)
Engine Configuration:
Single-cylinder, 2-stroke
Cooling Method:
Liquid-cooled (typical for performance models like CX)
Horsepower Typical Range:
Approx. 20-30 HP (may vary by specific model year and tuning)
Torque Typical Range:
Specific figures vary, but indicative of strong mid-range power for a 125cc 2-stroke.
Carburetor Type Common:
Dell'Orto PHBH or PHBL (e.g., 28mm, 30mm)
Fuel Delivery:
Pre-mix oil and gasoline (standard for most 2-strokes) or separate oil injection system.
Ignition Type:
Electronic ignition (CDI - Capacitor Discharge Ignition)
Spark Plug Type Example:
NGK BR9EG (Check manual for exact specification)
Oil Change Frequency:
Gearbox oil: Every 5,000-7,000 km or annually. 2-stroke oil: Continuous consumption via injection or pre-mix. Check manual for specifics.
Spark Plug Replacement:
Approximately every 3,000-5,000 km, depending on usage and plug type.
Air Filter Cleaning Replacement:
Clean every 2,000-3,000 km, replace as needed.
Coolant Type:
Ethylene glycol-based antifreeze mixture (e.g., 50/50 distilled water and coolant). Refer to manual for exact type and capacity.
Brake Fluid Type:
DOT 4 or DOT 5.1 (Check manual for specific recommendation).
2 Stroke Oil:
High-quality fully synthetic 2-stroke oil suitable for liquid-cooled, high-performance engines.
Common Issue 1:
Carburetor tuning sensitivity to altitude and temperature changes.
Common Issue 2:
Wear on the reed valve assembly, affecting performance.
Common Issue 3:
Front fork seal leaks over time due to age and mileage.
Common Issue 4:
Ignition system component failures (e.g., CDI, stator) can be age-related.
Manufacturer:
Gilera is an Italian motorcycle manufacturer with a long history dating back to 1909, known for its sporting heritage.
Cx Series Context:
The CX 125 was part of Gilera's range of sporty 125cc two-stroke motorcycles, often featuring advanced technology and performance for its class, aimed at younger riders and competition.
Production Period Typical:
Late 1980s to early 1990s (specific years vary by market and model updates).
