Vehicle Segment:
Scooter (Maxi-scooter segment)
Competitors 2008:
Yamaha XMAX 250, Suzuki Burgman 250, Honda Forza 250, Piaggio X8 250.
Manual Value Proposition:
Provides comprehensive, step-by-step repair and maintenance guidance, empowering owners and technicians to service the Kymco YUP 250 effectively.
Manual Benefits:
Cost savings through DIY repairs, increased vehicle lifespan, improved performance, and enhanced understanding of the vehicle's systems.
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures for the YUP 250's engine.
Fuel System:
Carburetor or fuel injection system diagnosis, cleaning, adjustment, and repair. Fuel pump, filter, and line maintenance.
Ignition System:
Spark plug specifications, ignition timing, coil testing, and CDI unit diagnosis.
Cooling System:
Radiator, fan, thermostat, and coolant specifications and service procedures (if liquid-cooled).
Transmission And Drivetrain:
CVT (Continuously Variable Transmission) maintenance, belt replacement, roller weights, clutch assembly, and final drive servicing.
Braking System:
Brake pad and shoe replacement, caliper and master cylinder service, brake fluid type and bleeding procedures, disc and drum specifications.
Suspension And Steering:
Front fork and rear shock absorber service, steering column adjustment, wheel bearing inspection and replacement.
Electrical System:
Wiring diagrams, battery testing, charging system (stator, regulator/rectifier), lighting system, starter motor, and electrical component troubleshooting.
Chassis And Bodywork:
Frame inspection, body panel removal and installation, fairing repair, seat servicing.
Preventative Maintenance:
Regular checks and service intervals for optimal performance and longevity.
Troubleshooting Guides:
Systematic diagnostic procedures for identifying and resolving common and uncommon faults.
Disassembly And Assembly:
Detailed, step-by-step instructions for removing and reinstalling all major components.
Cleaning And Lubrication:
Specific instructions for cleaning and lubricating various parts during maintenance and repair.
Adjustments:
Precise procedures for adjusting engine idle, brakes, cables, and other critical settings.
Rebuild Procedures:
Comprehensive instructions for rebuilding major components like the engine and transmission.
Depth Of Information:
Covers a wide range of repairs from basic fluid changes to complex engine overhauls.
Target Audience:
Professional technicians and experienced DIY mechanics with basic mechanical and electrical knowledge.
Factory Equivalence:
Aims to replicate the detail and scope of factory service manuals.
Engine Type:
Four-stroke, SOHC, 2-valve, liquid-cooled (Likely based on Kymco's common engine configurations for this era).
Displacement:
Approximately 246 cc (exact specification depends on the specific YUP 250 variant, but typical for 250cc class).
Bore X Stroke:
Manual would specify exact dimensions, e.g., 69.0 mm x 66.8 mm (common for similar displacement Kymco engines).
Compression Ratio:
Manual would specify, e.g., 10.2:1.
Horsepower Estimate:
Estimated 18-20 HP at ~7000-7500 RPM.
Torque Estimate:
Estimated 19-21 Nm at ~6000-6500 RPM.
Fuel Delivery:
Likely Keihin or Mikuni carburetor, or a Keihin electronic fuel injection (EFI) system for 2008 models.
Fuel Type:
Unleaded gasoline, typically 91 RON or higher.
Oil Type:
Manual would specify, likely SAE 10W-40 or 20W-50, API SG or higher, JASO MA/MA2.
Oil Capacity:
Manual would specify, typically around 1.0 - 1.2 liters with filter change.
Overall Length:
Manual would provide precise dimensions, likely around 2100-2200 mm.
Overall Width:
Manual would provide precise dimensions, likely around 700-750 mm.
Overall Height:
Manual would provide precise dimensions, likely around 1400-1500 mm.
Dry Weight:
Manual would specify, typically in the range of 160-180 kg.
Wet Weight:
Manual would specify, including all fluids.
Load Capacity:
Manual would specify maximum rider and cargo weight.
Crash Test Data:
N/A (Scooters typically do not undergo standardized automotive crash testing).
Braking System:
Front disc brake, Rear disc brake (common for this class).
Lighting:
Halogen headlight, LED tail light and turn signals (typical for 2008).
Frame Construction:
Steel tube frame for rigidity and rider safety.
Seat Belt:
N/A (Motorcycle/Scooter).
Oil Change Interval:
Typically every 3,000-5,000 km or annually, as specified in the manual.
Air Filter Cleaning:
Check every 3,000 km, clean or replace as needed.
Spark Plug Replacement:
Typically every 10,000-15,000 km.
Belt Inspection Replacement:
Inspect every 10,000 km, replace as per manual recommendations (e.g., 20,000-30,000 km).
Engine Oil Grade:
SAE 10W-40 or 20W-50, API SG or higher, JASO MA/MA2 (specified in manual).
Brake Fluid Type:
DOT 3 or DOT 4 (specified in manual).
Coolant Type:
Permanent type antifreeze/coolant, mixture ratio 50/50 with distilled water (if liquid-cooled).
Final Drive Oil Type:
Hypoid gear oil SAE 80 (specified in manual).
Common Wear Items:
Drive belt, brake pads, tires, suspension bushings, spark plugs.
Potential Problems:
CVT overheating under sustained heavy load, carburetor jetting issues in varying altitudes, electrical connector corrosion over time.
Kymco Origin:
Kymco (Kwang Yang Motor Co., Ltd.) is a Taiwanese company founded in 1963, known for its scooters, motorcycles, and ATVs.
Yup Series:
The YUP series represents Kymco's offering in the mid-size scooter segment, often focusing on practicality, comfort, and value.
Manufacturing Location:
Taiwan.
