Kymco People 150 Service Manual

• Coverage and format: Covers the KYMCO People 125 and People 150 in 185 PDF pages across 17 chapter files, with separate engine and fuel-system data for each displacement.
• Engine repair depth: Documents engine removal and installation, camshaft timing, cylinder-head and valve disassembly, cylinder/piston inspection, crankcase separation, and crankshaft checks.
• CVT and final drive: Follows drive and driven pulley repair, drive-belt and weight-roller checks, clutch disassembly, driven-face bearing replacement, kick-starter service, and final-reduction teardown.
• Fuel-system diagnosis: Provides carburetor removal and disassembly, auto bystarter testing, air cut-off valve service, vacuum-chamber and float work, float-level inspection, and vacuum-operated fuel-valve diagnosis.
• Brake, wheel, and suspension work: Details wheel and bearing service, hydraulic front-brake bleeding and master-cylinder/caliper repair, rear drum-brake work, shock-absorber checks, and steering-stem race replacement.
• Electrical documentation: Includes separate 125cc and 150cc wiring diagrams - with the 150cc sheet labeled Singapore - plus charging, ignition, and starting diagnosis, switch checks, instrument service, and fuel-gauge testing.

This KYMCO factory service manual is a workshop-level repair reference for the air-cooled, single-cylinder OHC four-stroke People platform. Its compact procedures, measurement-based inspections, and reliance on specialty tools make it best suited to experienced mechanics with a tachometer, timing light, compression gauge, electrical tester, and normal metric shop equipment.

Maintenance and Fault Finding

The inspection chapter ties the factory maintenance schedule to fuel-line and throttle checks, air-cleaner and spark-plug service, valve-clearance and idle adjustment, ignition-timing and cylinder-compression tests, final-reduction oil service, drive-belt and brake inspection, headlight aim, steering, suspension, wheels, and tires. Schedule notes address repeat service as mileage increases and call for shorter intervals under dusty, rainy, or sustained full-throttle use. Several safety-related schedule items are marked for authorized KYMCO dealer service.

Cross-system troubleshooting charts trace hard starting, loss of power, poor idle or high-speed performance, undercharging, overcharging, and no-spark conditions through inspection paths and probable causes. Individual chapters add fault lists for the carburetor, CVT, final reduction, brakes and steering, battery and charging system, CDI ignition, starter system, lighting, and fuel gauge.

Engine, Fuel, and CVT Repair

The fuel chapter distinguishes the VE052A carburetor for the 125cc model from the VE054A carburetor for the 150cc model, with separate factory jetting and pilot-screw baseline data. Engine tables likewise separate model-specific camshaft and cylinder data, then provide inspection limits for rocker arms, valves and guides, piston rings, piston pin, connecting rod, crankshaft, and oil-pump rotors.

The transmission chapters carry repair work past routine belt replacement, with service limits for the drive-face bushing, roller weights, clutch lining, driven-face spring, pulley fits, and bearings. Final-reduction and crankshaft work includes the required removal dependencies, inspection points, replacement limits, lubrication notes, and assembly checks.

Brake, Steering, and Electrical Diagnosis

Front-brake coverage includes fluid replacement and air bleeding, pad and disk inspection, master-cylinder teardown, caliper piston and seal service, and reassembly checks. Chassis chapters address frame-cover and muffler removal, wheel bearings, rear brake shoes and cam, adjustable rear-spring preload, front shock absorbers, handlebar removal, and steering-head ball races.

Electrical testing goes well beyond the two full wiring sheets. The manual supplies charging-current and limit-voltage checks, regulator/rectifier terminal tests, A.C. generator coil specifications, CDI and ignition-coil checks, pulser-coil testing, starter-motor and relay diagnosis, switch continuity tables, and fuel-sender resistance checks. Other named visual references include the Hydraulic Brake Drawing, Charging Circuit, Ignition Circuit, and Starting Circuit.

Factory Specifications, Tools, and Service Cautions

Reference data includes standard and component-specific torque tables, approved lubricants, engine and final-drive capacities, adjustment data, brake measurements, engine and transmission wear limits, and electrical test specifications. The special-tool index identifies factory tools by number, including Flywheel Puller E002, Tappet Adjuster E012, Oil Seal & Bearing Installer E014, Clutch Spring Compressor E027, and Race Cone Installer F005.

The carburetor notes warn that compressed-air cleaning can damage the vacuum diaphragm if it remains in place. The clutch repair section calls for a spring compressor to prevent spring damage and warns against contaminating the belt, pulley faces, or clutch linings with grease.

Run the engine only in a well-ventilated work area, keep sparks and flame away from fuel-system service, support the scooter securely whenever a wheel is raised, and protect painted or plastic surfaces from brake fluid.