2006 KYMCO MXU 50 & MXU 50 REVERSE Service Manual (P/N T100LB10DE)

• Coverage and document identity: Covers the 2006 KYMCO MX'ER 50 (model code LA10), MXU 50 (LB10), and MXU 50 Reverse (LB10). The 245-page PDF contains KYMCO's First Edition service manual from January 2006 and bears document code T100LB10DE.
• Engine repair: Covers engine removal and installation; cylinder head, cylinder, piston, and ring service; crankcase separation; crankshaft inspection and replacement; A.C. generator removal; and in-frame top-end work.
• Fuel and lubrication: Details PB carburetor and auto bystarter repair, float and jet service, reed-valve inspection, oil-pump removal and inspection, pump synchronization, oil-line bleeding, and fuel tank and valve work.
• CVT and driveline: Includes the kick starter, drive belt, drive pulley and rollers, starter pinion, clutch/driven pulley, bearing replacement, standard final reduction, and a separate MXU 50 Reverse transmission teardown covering the shift cam, fork, clutch dog, and drive axles.
• Chassis and brakes: Documents wheel hubs and bearings, front drum brakes, rear drum and hydraulic disc brake systems, swing arms, suspension, steering column, tie rods, toe-in, rear axle, drive chain, and brake bleeding.
• Electrical diagnosis: Provides variant-specific cable and harness routing, four wiring diagrams, charging and ignition circuit views, troubleshooting charts, and test data for the battery, A.C. generator, regulator/rectifier, ignition coil, pulser, CDI, oil meter, and fuel gauge.
• Important PDF scope: The file contains Chapters 1-16 and ends at manual page 16-7. Chapters 17-19 (Starting System, Lights/Switches, and Only ATV On Road Available) appear in the table of contents but are not included. Chapter 1 still provides starter-motor troubleshooting and the model-specific wiring diagrams.

Built for actual workshop use, this manual goes beyond routine maintenance into disassembly, inspection, measurement, parts replacement, assembly, adjustment, and operational checks. Its repair depth and dependence on pullers, bearing drivers, a clutch spring compressor, electrical testers, and hydraulic-brake equipment make it best suited to experienced technicians and advanced owners with a properly equipped workspace.

Engine, Fuel, and Drivetrain Service

The air-cooled two-stroke engine chapters distinguish the standard final reduction used by the MXU 50 and MX'ER 50 from the MXU 50 Reverse gear-selection system. Service data covers component-specific torque tables, variant-specific gear-oil capacities, carburetor settings, compression and ignition references, wear limits, fits and clearances, and inspection points. Ten factory tools are identified by number, including flywheel puller A120E00001, crankcase puller A120E00026, clutch spring compressor A120E00034, and nut wrench A120F00010.

The manual warns that an oil-pump control indexed toward the closed side can starve the engine and seize the piston; air left in the system after oil-pump or line work can also stop oil flow and cause severe damage. On the MXU 50 Reverse, the shift-shaft gear and shift-cam marks must correspond, and the gear-change switch lever must engage its locating slot, or transmission operation may be compromised.

Chassis, Brake, and Maintenance Coverage

Routine coverage starts with the fuel line and throttle, foam air cleaner, spark plug, oil filter and pump control, idle speed, compression testing, final-reduction oil, and V-belt inspection. Separate procedures address brake adjustment, headlight aim, steering play, toe-in, tires, chain slack, cable lubrication, and suspension grease points.

The repair chapters go further into front hub and bearing replacement, drum-brake disassembly, front-arm and steering-column service, rear axle and swing-arm work, chain and sprocket inspection, and rear hydraulic disc-brake repair. The hydraulic section includes fluid replacement and bleeding, pad and disc inspection, plus master-cylinder and caliper disassembly, measurement, seal service, and reassembly.

Fuel-system work, running-engine tests, elevated-vehicle procedures, spring-loaded clutch service, and hydraulic-brake repair require proper ventilation, control of ignition sources, secure support, eye protection, and suitable shop equipment.

Wiring and Diagnostic Material

The diagram set includes the MX'ER 50 On Road and Off Road wiring diagrams, the MXU 50 On Road diagram, the MXU 50 Reverse On Road diagram, the MX'ER 50 charging circuit, and the MXU 50 Reverse/MXU 50 charging circuit. Model-specific ignition circuits and component-location views support connector and harness identification.

Engine and driveline charts cover hard starting, stalling, loss of power, CVT and clutch faults, steering, suspension, brakes, oil-level indication, fuel-gauge behavior, and starter-motor symptoms. Electrical procedures address charging output and leakage, generator coils, regulator/rectifier circuits, ignition-coil performance, pulser wiring, and CDI supply checks.