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Longjia LJ1P37QMB(3B3) User Manual

Longjia LJ1P37QMB(3B3)
75 pages
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LJ1P37QMB(3B3)
4- STROKE 50cc
SERVICE MANUAL
LCJNG..JIA

Table of Contents

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Longjia LJ1P37QMB(3B3) Specifications

General IconGeneral
Fuel SystemCarburetor
Ignition SystemCDI
Engine TypeSingle cylinder, air-cooled, 4-stroke
Max Torque9.2Nm @ 6500rpm
Starting SystemElectric / Kick
Lubrication SystemPressure and splash

Summary

SPECIFICATION / TIGHTEN TORQUE VALUES

TORQUE VALUES (ENGINE)

Specific torque values for various engine bolts and nuts.

REMOVAL OF ENGINE

OPERATIONAL PRECAUTIONS

Important safety and procedural notes for engine removal.

CYLINDER HEAD / VALVE

DISASSEMBLY & INSPECTIONS

Procedures for disassembling cylinder head components and inspections.

REASSEMBLY & INSTALLATION

Steps for reassembling and installing the cylinder head.

CYLINDER/PISTON

PISTON & RING PROCEDURES

Removal of piston, ring installation, and related measurements.

PISTON & CYLINDER INSTALLATION

Steps for installing piston and cylinder back into the engine.

V-BELT DRIVING SYSTEM / KICK STARTER SYSTEM

DRIVING BELT PROCEDURES

Steps for removing, inspecting, and installing the drive belt.

CLUTCH/DRIVEN PULLEY PROCEDURES

Disassembly, inspection, and installation of clutch and driven pulley.

FINAL DRIVING SYSTEM

DISASSEMBLY & INSPECTION

Procedures for disassembling and inspecting the final drive system.

RE-ASSEMBLY MECHANISM

Steps for reassembling the final drive mechanism.

CRANKCASE/CRANKSHAFT

CRANKCASE ASSEMBLY

Steps for reassembling the crankcase and oil seals.

STARTING CLUTCH

INSTALLATION PROCEDURES

Steps for installing the starting clutch components.