Segment:
Premium/Sporty 125cc Scooter segment.
Key Competitors:
Competes with other 125cc maxi-scooters from brands like Yamaha (XMAX 125), Honda (Forza 125), Kymco (Xciting 125), and Suzuki (Burgman 125).
Design Philosophy:
Sporty styling, comfortable ergonomics for commuting and touring, and robust engineering.
Target Audience:
Commuters, younger riders (subject to licensing laws), and those seeking a stylish and practical urban mobility solution.
Value:
Provides a comprehensive resource for maintaining and repairing a performance-oriented 125cc scooter, maximizing its lifespan and performance.
Engine:
Maintenance, troubleshooting, and repair of the 125cc fuel-injected engine.
Fuel System:
Inspection, cleaning, and component testing of the electronic fuel injection (IE) system.
Cooling System:
Service procedures for the liquid cooling system, including coolant checks and radiator maintenance.
Transmission:
Maintenance and potential repair procedures for the automatic transmission (likely CVT).
Suspension:
Front fork and rear shock absorber maintenance and adjustment.
Brakes:
Front and rear brake system service, including fluid replacement, pad replacement, and caliper maintenance.
Chassis And Bodywork:
Disassembly and reassembly of body panels, frame inspection, and general chassis maintenance.
Wheels And Tires:
Tire inspection, replacement, wheel balancing, and general wheel hub maintenance.
Exhaust System:
Inspection and potential replacement of exhaust components.
Ignition System:
Spark plug service, ignition coil inspection (though electrical diagrams are excluded).
Routine Maintenance:
Oil changes, filter replacements, spark plug checks, and general lubrication.
Troubleshooting:
Diagnostic guidance for common issues, particularly related to the engine and fuel injection system.
Component Replacement:
Step-by-step instructions for replacing key components like brake pads, filters, and wear items.
Disassembly Reassembly:
Detailed procedures for taking apart and putting back together various sub-assemblies.
Fluid Management:
Procedures for checking, topping up, and changing engine oil, coolant, and brake fluid.
Suspension Adjustment:
Guidance on adjusting suspension settings if applicable.
Depth:
Comprehensive workshop level. Covers detailed repair and maintenance procedures, with 'comprehensive picture' suggesting detailed diagrams and illustrations for mechanical aspects.
Type:
Single-cylinder, Four-stroke, Liquid-cooled
Displacement:
125 cc (cc)
Fuel Delivery:
Electronic Fuel Injection (IE)
Valvetrain:
SOHC, 4-valve (Typical for this class, consult specific model for confirmation)
Horsepower:
Approximately 15 HP (11 kW) @ 9,750 RPM (Typical for 125cc class, specific figures require model confirmation)
Torque:
Approximately 12 Nm (9 lb-ft) @ 8,000 RPM (Typical for 125cc class, specific figures require model confirmation)
Injection Type:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded Petrol (Gasoline)
Length:
Approx. 2050 mm (Requires specific model data)
Width:
Approx. 750 mm (Requires specific model data)
Height:
Approx. 1350 mm (Requires specific model data)
Dry Weight:
Approx. 160-170 kg (Requires specific model data)
Gross Vehicle Weight Rating:
Approx. 320 kg (Requires specific model data)
Underseat Storage:
Sufficient for at least one full-face helmet (typical for maxi-scooters).
Crash Test Ratings:
N/A (Motorcycles/scooters typically not rated by standard automotive safety organizations like NHTSA or Euro NCAP).
Braking System:
Front and Rear Disc Brakes. ABS may be optional or standard on certain variants (not specified).
Lighting:
Halogen or LED Headlight and Taillight (Specifics depend on exact model year/variant).
Frame Construction:
Steel frame construction for rigidity and stability.
Dashboard:
Digital and Analog dashboard displaying speed, RPM, fuel level, coolant temperature, and warning lights.
ABS:
Optional ABS system on some models; this manual may cover its maintenance if equipped.
Lighting Technology:
Halogen or LED lighting systems typical for its era.
Oil Change Interval:
Typically every 5,000-7,000 km or annually (Refer to manual for precise intervals).
Spark Plug Replacement:
Recommended at intervals of 10,000-15,000 km (Consult manual for specific plug type and gap).
Air Filter Cleaning:
Check every 5,000 km, clean or replace as needed.
Coolant Replacement:
Typically every 2 years or 20,000 km.
Engine Oil Type:
Synthetic Motorcycle Oil, SAE 10W-40 or 5W-40, API SG or higher, JASO MA/MA2 (Consult manual for exact viscosity and specifications).
Engine Oil Capacity:
Approx. 1.0 - 1.2 Liters (Check dipstick/level indicator after filling).
Coolant Type:
Ethylene Glycol based coolant, pre-mixed with distilled water (typically 50/50 ratio). Use a coolant resistant to freezing and boiling point specified for the region.
Brake Fluid Type:
DOT 4 (Refer to manual for specific recommendation and change interval).
Common Wear Items:
Brake pads, tires, drive belt (CVT), and spark plugs are common wear items requiring regular inspection and replacement.
Fuel Injection System:
Potential for injector clogging or sensor issues if fuel quality is poor or maintenance is neglected. This manual's inclusion of fuel system service is critical.
Manufacturer:
Gilera is an Italian motorcycle manufacturer, now part of the Piaggio Group.
Introduction Period:
The Nexus line was introduced in the early 2000s, with the 125ie being a more modern iteration focusing on fuel injection for efficiency and emissions.
Manufacturing Location:
Primarily manufactured in Italy.
