Vehicle Segment:
Sporty youth ATV / Quad Bike, positioned for recreational off-road riding and light trail use.
Competitors:
Likely competes with other 125cc ATVs from brands such as Yamaha (e.g., Raptor 125), Suzuki (e.g., LT-Z125), and potentially some Polaris models in the youth segment.
Vehicle Appeal:
Agile handling, manageable power for younger riders or beginners, sporty aesthetics, and Kymco's reputation for value.
Value Proposition:
To empower owners and technicians with the knowledge and procedures to maintain, diagnose, and repair the Kymco Mxer 125, thereby extending its lifespan and optimizing performance.
Primary Coverage:
Maintenance and repair procedures for the Kymco Mxer 125.
Target Audience:
Do-it-yourself enthusiasts and experienced mechanics.
Estimated Page Count:
Information not explicitly provided, but the level of detail suggests a comprehensive manual likely exceeding 300 pages.
Manual Type:
Service and Repair Manual
Compatibility:
Windows and Mac operating systems.
Reader Requirement:
Adobe PDF Reader
Engine Mechanical:
Engine removal and installation, cylinder head and valves, cylinder and piston, crankcase and crankshaft, lubrication system, fuel system.
Drivetrain:
Drive and driven pulleys, final reduction, kick starter.
Suspension And Brakes:
Front wheel, front brake, front suspension, rear wheel, rear brake, rear suspension.
Electrical System:
Battery charging system, A.C. generator, ignition system, starting system, lights, instruments and switches.
Emission Controls:
Evaporative emission control system, exhaust emission control system.
Chassis And Body:
Frame covers, exhaust muffler.
Routine Maintenance:
Inspection and adjustment, lubrication.
Component Repair:
Complete disassembly and reassembly procedures for all major components.
Troubleshooting:
Implicitly covered through detailed repair procedures and diagnostic information.
Depth:
Comprehensive, covering complete disassembly and detailed repair procedures, suitable for both novice and experienced technicians.
Illustration Detail:
Hundreds of photos and illustrations to guide service and repair.
Engine Type:
Likely a single-cylinder, four-stroke, air-cooled (or potentially liquid-cooled depending on specific Mxer 125 variant, though air-cooled is more common in this class).
Displacement:
Approximately 125cc (as indicated by the model name).
Valve Configuration:
Typically SOHC (Single Overhead Cam) for this displacement class, with 2 or 4 valves.
Ignition System:
CDI (Capacitor Discharge Ignition) is common for this type of vehicle.
Horsepower:
Estimated 8-12 HP (subject to specific tuning and emission regulations).
Torque:
Specific figures not provided, but expected to be modest, suitable for its displacement.
Fuel Delivery:
Likely a carburetor (e.g., Keihin or Mikuni type) or potentially an early EFI system on later models.
Fuel Type:
Unleaded gasoline.
Transmission Type:
Automatic CVT (Continuously Variable Transmission) is standard for this class of ATV, providing seamless acceleration.
Optional Transmission:
N/A (CVT is the typical standard).
Drive System:
Likely 2WD (Rear Wheel Drive), common for recreational ATVs of this size.
Final Drive:
Chain drive to the rear axle is most probable.
Length:
Specific figures not provided, but typical for a 125cc ATV, around 65-70 inches.
Width:
Specific figures not provided, but typically around 35-40 inches.
Height:
Specific figures not provided, but typically around 40-45 inches to the handlebars.
Dry Weight:
Estimated 250-300 lbs, depending on specific configuration.
Towing Capacity:
Typically very limited or not specified for this class of recreational ATV.
Rollover Protection:
ATVs inherently have rollover risks; proper safety gear and training are paramount. No formal crash ratings like cars.
Braking System:
Hydraulic disc brakes on front and rear wheels are standard for effective stopping power.
Throttle Limiter:
Often adjustable throttle limiters are incorporated for younger riders.
Lighting:
Headlights, taillight, and brake light for visibility.
Handguards:
May be equipped with basic handguards for protection.
Oil Change:
Typically every 1,000 km or 6 months, but specific intervals for engine oil, gearbox oil, and differential oil will be detailed in the manual.
Air Filter Cleaning:
Frequent cleaning/replacement recommended, especially in dusty conditions. Manual will provide specific intervals.
Spark Plug Inspection:
Regular inspection and gapping as per manual specifications.
Engine Oil:
Likely SAE 10W-40 or 20W-50 motorcycle-specific oil (API SG or higher). Exact viscosity and API classification to be confirmed in the manual.
Coolant:
If liquid-cooled, a permanent antifreeze coolant mixture (e.g., ethylene glycol based) will be specified.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid is standard.
Gear Oil:
Specific gear oil or multi-purpose ATV oil for the final drive/gearbox. Manual will specify grade and type.
Common Wear Items:
Wear on brake pads, tires, drive chain/sprockets (if applicable), and CVT belt are common to most ATVs and will likely be addressed in maintenance sections.
Carburetor Tuning:
Carburetors may require periodic cleaning and adjustment, especially after storage or if fuel quality varies. Manual provides procedures.
Manufacturer:
Kymco (Kwang Yang Motor Co., Ltd.) is a Taiwanese company established in 1964, known for producing scooters, motorcycles, ATVs, and mobility scooters. They are a significant global manufacturer with a strong focus on value and quality.
Mxer Series:
The Mxer line represents Kymco's entry into the sporty youth ATV segment, designed to offer an accessible and fun riding experience. Specific year-to-year changes would be detailed within the manual for the covered period.
Manufacturing Location:
Primarily manufactured in Taiwan.
