Segment:
Maxi-scooter / Sport-scooter
Target Audience:
Riders seeking a powerful, versatile scooter for commuting and touring, with a focus on performance and comfort.
Key Competitors:
Yamaha TMAX, Suzuki Burgman, BMW C650 GT, Aprilia SRV850 (later model).
Unique Selling Points:
Large displacement V-twin engine, motorcycle-like performance, advanced braking system (potentially with ABS), comfortable riding position, significant under-seat storage.
Design Philosophy:
Bridging the gap between scooter practicality and motorcycle performance, offering a sporty and capable urban and touring machine.
Engine:
Comprehensive engine overhaul, including disassembly, inspection, and reassembly of all internal components, valve timing, cooling system, lubrication system.
Fuel System:
Detailed coverage of the electronic fuel injection (i.e.) system, including injectors, throttle body, fuel pump, pressure regulator, ECU diagnostics, and sensor calibration.
Transmission:
Service and repair procedures for the automatic CVT (Continuously Variable Transmission) system, including belt inspection and replacement, variator, clutch assembly, and final drive.
Brakes:
Complete brake system service, including hydraulic components, ABS (Anti-lock Braking System) operation and troubleshooting, disc and pad replacement, bleeding procedures.
Electrical System:
Extensive coverage of the electrical system, including wiring diagrams, starter system, charging system (alternator, regulator/rectifier), battery, ignition system, lighting, and all sensors.
Chassis Suspension:
Front and rear suspension servicing, including fork oil change, seal replacement, shock absorber adjustment and overhaul, swingarm, bearings, and steering head assembly.
Cooling System:
Radiator service, coolant replacement, thermostat operation, fan control, and troubleshooting of leaks or overheating issues.
Exhaust System:
Exhaust pipe and silencer inspection, gasket replacement, and emissions control system components.
Bodywork:
Fairing removal and installation, seat, storage compartment, and other body panel servicing.
Maintenance:
Detailed maintenance schedule, oil and filter changes, air filter servicing, spark plug replacement, drive belt inspection, brake fluid replacement, coolant replacement.
Repair:
Step-by-step repair procedures for all major and minor components, including engine rebuilds, transmission overhauls, electrical diagnostics, and suspension repairs.
Troubleshooting:
Systematic troubleshooting guides for common and complex issues, including diagnostic flowcharts and fault code interpretation for the EFI system.
Diagnostics:
Procedures for diagnosing electronic faults using diagnostic tools (if applicable), sensor testing, and ECU parameter checks.
Assembly Disassembly:
Complete instructions for the removal and installation of all major components and sub-assemblies.
Depth Of Coverage:
Comprehensive, covering everything from basic fluid changes and inspections to complete engine and transmission rebuilds, electrical system diagnostics, and chassis overhaul.
Engine Manufacturer:
Piaggio (Gilera is part of Piaggio Group)
Engine Layout:
V-twin (90-degree)
Bore X Stroke:
88 mm x 66.1 mm (estimated, to be confirmed in manual)
Valvetrain:
DOHC, 8 valves (4 valves per cylinder)
Cooling System:
Liquid-cooled
Horsepower:
Approx. 75 HP (55 kW) @ 7,000 RPM (estimated, to be confirmed in manual)
Torque:
Approx. 78 Nm (57.5 lb-ft) @ 6,000 RPM (estimated, to be confirmed in manual)
Fuel Delivery:
Electronic Fuel Injection (i.e.)
Fuel Type:
Unleaded gasoline (95 RON recommended)
Oil Type:
SAE 5W-40 Synthetic Motorcycle Oil (API SG or higher, JASO MA approved)
Oil Capacity With Filter:
Approx. 2.0 Liters (to be confirmed in manual)
Ignition Type:
Electronic ignition with variable timing
Length:
Approx. 2,235 mm (to be confirmed in manual)
Width:
Approx. 780 mm (to be confirmed in manual)
Height:
Approx. 1,420 mm (to be confirmed in manual)
Wheelbase:
Approx. 1,585 mm (to be confirmed in manual)
Dry Weight:
Approx. 232 kg (to be confirmed in manual)
Wet Weight:
Approx. 247 kg (to be confirmed in manual)
Fuel Tank Capacity:
Approx. 18.5 Liters (including reserve) (to be confirmed in manual)
Instrument Cluster:
Digital and analog instrumentation including speedometer, tachometer, fuel gauge, odometer, trip meter, coolant temperature, and warning lights. May include engine diagnostic indicators.
ABS System:
The availability of an Anti-lock Braking System (ABS) significantly enhances rider safety by preventing wheel lock-up during heavy braking.
Diagnostic Port:
A diagnostic port for connecting electronic diagnostic tools to read fault codes and monitor engine parameters.
Engine Oil Change:
Every 6,000 km or 12 months, whichever comes first. (Consult manual for exact details)
Oil Filter Replacement:
At every engine oil change. (Part Number: 851079 - Piaggio/Aprilia)
Air Filter Cleaning Replacement:
Inspect every 6,000 km, clean or replace as needed. (Part Number: 829485 - Piaggio/Aprilia)
Spark Plug Replacement:
Every 12,000 km. (Recommended: NGK CR9EB or equivalent)
Drive Belt Inspection:
Inspect every 12,000 km. Replace based on wear and condition. (Part Number: 851192 - Piaggio/Aprilia)
Coolant Replacement:
Every 24,000 km or 24 months. (Use a high-quality ethylene glycol-based coolant)
Brake Fluid Replacement:
Every 24,000 km or 24 months. (DOT 4 recommended)
Transmission Fluid:
N/A (CVT system uses engine oil for clutch lubrication, no separate transmission fluid)
Common Wear Items:
Drive belt, clutch shoes, variator rollers, brake pads, suspension components due to high performance.
Potential Electrical Issues:
Regulator/rectifier failure (common in many Piaggio products of this era), stator issues, wiring harness wear.
Fuel System Considerations:
Potential for injector clogging if fuel quality is poor; regular maintenance of the fuel filter is crucial.
Gilera Legacy:
Gilera is an historic Italian motorcycle manufacturer, known for performance-oriented models and racing heritage, now part of the Piaggio Group.
Gp800 Introduction:
The GP800 was introduced as Gilera's flagship maxi-scooter, aiming to offer a powerful and sporty alternative to conventional scooters and entry-level motorcycles.
Gp800 Successor:
The GP800 served as the platform for the later Aprilia SRV850, sharing many of its core components and powertrain.
Manufacturing Location:
Italy (Piaggio Group manufacturing facilities)