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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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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.

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