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um DSR SM 125 User Manual

um DSR SM 125
120 pages
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ENGINE 125 4T / 4V 6M EURO 4
WORKSHOP MANUAL

Table of Contents

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um DSR SM 125 Specifications

General IconGeneral
Displacement124.6 cc
Fuel SystemCarburetor
IgnitionCDI
LubricationWet Sump
Engine TypeSingle cylinder, 4-stroke, air-cooled
Bore x Stroke56.5 mm x 49.5 mm
Starting SystemElectric & Kick Start
Transmission5-Speed

Summary

Tightening Torques

Electrical System Specifications

Regular Inspection and Adjustments

Periodical Maintenance Plan

Outlines maintenance tasks categorized by frequency (before start-up, after wash, yearly).

Component Adjustments and Inspections

Procedures for adjusting throttle cable, inspecting spark plugs, and checking compression.

Dismantling the Engine

Camshaft and Timing Chain Removal

Steps for removing camshaft, timing chain, tensioner, and related parts.

Cylinder Head, Piston, and Flywheel Magneto Removal

Procedures for dismantling cylinder head, piston, and flywheel magneto.

Clutch and Oil Pump Dismantling

Steps for dismantling the clutch assembly and the oil pump.

Crankshaft, Crankcases, and Transmission Dismantling

Procedures for dismantling crankshaft, crankcases, and transmission components.

Inspection and Repair Procedures

Cylinder Head and Valve Inspection

Inspecting cylinder head, valve seats, and adjusting valve clearance.

Assembling the Engine and Adjustments

Transmission and Crankshaft Assembly

Steps for assembling transmission, gear selector, crankshaft, and related parts.

Crankcases, Oil Pump, and Clutch Assembly

Procedures for assembling crankcases, oil pump, and clutch components.

Magneto, Camshaft, and Timing Chain Assembly

Steps for assembling magneto, camshaft, timing chain, and related parts.

Piston Rings and Cylinder Head Assembly

Procedures for installing piston rings and assembling cylinder head, cylinder, and piston.

EMS Link Diagnostic Tool Guide

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