yamaha DT125RE & DT125X
SERVICE MANUAL
YAMAHA DT125RE, DT125X - SERVICE MANUAL - English Service Manual, in PDF format, to motorcycles Yamaha model DT125RE and DT125X. CONTENTS: GENERAL INFORMATION Motorcycle identification - Frame serial number - Engine serial number Important information - Preparation for removal - All replacement parts - Gaskets, oil seals and o-rings - Lock washers/plates and cotter pins - Bearings and oil seals - Circlip - Checking the connections Special tools SPECIFICATIONS General specifications - Engine specifications - Chassis specifications - Electrical specifications Conversion table General tightening torque specifications - Engine - Chassis Coolant flow chart Lubrication points and lubricant type - Engine - Chassis Cable routing PERIODIC CHECKS AND ADJUSTMENTS Introduction/periodic maintenance/lubrication Engine - Y.p.v.s. Cable adjustment - Idle speed adjustment - Throttle cable free play adjustment - Carburetor cable free play adjustment - Autolube pump stroke adjustment - Autolube pump air bleeding - Spark plug inspection - Ignition timing check - Engine oil level inspection - Transmission oil level inspection - Transmission oil replacement - Clutch adjustment - Air filter cleaning - Carburetor joint inspection - Fuel line inspection - Checking the crankcase breather hose - Exhaust system inspection - Engine oil line inspection - Coolant level inspection - Coolant replacement - Cooling system inspection Chassis - Front brake adjustment - Rear brake adjustment - Brake fluid inspection - Brake pad inspection - Brake light switch adjustment - Brake hose inspection - Drive chain slack adjustment - Drive chain lubrication - Steering head adjustment - Front fork inspection - Rear shock absorber adjustment - Tire inspection - Wheel inspection - Cable inspection and lubrication Electrical - Battery inspection - Fuse inspection - Headlight bulb replacement - Headlight beam adjustment CHASSIS Front wheel - Removal - Inspection - Installation Rear wheel - Removal - Inspection - Installation Front and rear brake - Brake pad replacement - Caliper disassembly - Master cylinder disassembly - Inspection and repair - Assembly - Air bleeding Front fork - Removal - Disassembly - Inspection - Assembly Steering head and handlebar - Removal - Inspection - Installation Rear shock absorber and swingarm - Handling notes - Notes on disposal - Removal - Inspection - Side clearance adjustment - Installation Drive chain and sprockets - Removal - Inspection - Installation ENGINE Engine removal - Side covers - Coolant - Transmission oil - Exhaust pipe - Carburetor - Autolube pump cable and hose - Clutch cable - Y.p.v.s. Cables - Radiator hose - Leads - Drive chain Engine disassembly - Cylinder head, cylinder and piston - Clutch, primary drive gear and balancer gear - Clutch push lever - Shift sahft and stopper lever - Magneto rotor - Reed valve - Crankcase (right) - Shifter, transmission and balancer weight - Crankshft - Power valve - Autolube pump assembly Inspection and repair - Cylinder head - Cylinder and piston - Piston rings - Piston pin and bearing - Clutch - Primary drive - Transmission and shifter - Shift shaft and stopper lever - Crankshaft - Autolube pump - Power valve - Crankcase Engine assembly and adjustments - Autolube pump - Power valve - Crankshaft and balancer - Transmission and shifter - Crankcase (right) - Reed valve - Magneto rotor - Stopper lever and shift shaft - Clutch push lever - Balancer gear, primary drive gear and clutch - Piston cylinder and cylinder head - Remounting engine COOLING SYSTEM Water pump - Removal - Inspection - Installation Thermostatic valve and radiator - Removal - Inspection - Installation CARBURETOR Carburetor - Removal - Disassembly - Inspection - Assembly - Installation - Adjustment Reed valve - Removal - Disassembly - Inspection - Assembly - Installation ELECTRICAL SYSTEM Dt125re circuit diagram - Color code Electrical components - Checking switch continuity - Checking the switches Ignition system - Circuit diagram - Ignition control circuit operation - Troubleshooting Charging system - Circuit diagram - Troubleshooting Lighting system - Circuit diagram - Troubleshooting Signaling system - Circuit diagram - Troubleshooting Cooling system - Circuit diagram - Troubleshooting Yamaha poer valve system - Circuit diagram - Troubleshooting Meter assembly - Removal - Installation TROUBLESHOOTING Starting failure / hard starting - Fuel system - Electrical system Poor idle speed performance - Poor idle speed performance Poor medium and high speed performance - Fuel system - Electrical system - Compression system - Y.p.v.s. Faulty gear shifting - Hard shifting - Change pedal does not move - Jump out gear Clutch slipping/dragging - Clutch slipping - Clutch dragging Faulty brake - Poor braking effect Front fork oil leakage and front fork malfunction - Oil leakage - Malfunction Instable handling - Instable handling Faulty signal and lighting system - Headlight dark - Bulb burnt out - Flasher does not light - Flasher keeps on - Flasher winks slower - Flasher winks quicker - Horn is inoperative Faulty y.p.v.s. - Faulty y.p.v.s Overheating or overcooling - Overheating - Overcooling Dt125 wiring diagram WIRING DIAGRAM COMPONENTS - CDI. Mag. - Rect./Regu. - Battery - Fuse - Starter Relay - Starting Motor - Main Sw. - Handle Sw. R - Starter Sw. - E/G Stop Sw. - Clutch Sw. - Side Stand Sw. - Thermo Sw. - Side Stand Relay - Neutral Sw. - CDI. Unit - Ign. Coil - Servo. Motor - Lightning Relay - Horn Sw. - Dimmer Sw. - Flasher Sw. - Hazard Sw. - Handle Sw. L - Horn - Flasher Relay - Fr. Stop Sw. - Rr. Stop Sw. - Head Light - Fr. Lh Flasher - Rr. Lh Flasher - Fr. Rh Flasher - Rr. Rh Flasher - Tail/Stop Light - Oil Level Gauge - Meter - Diode 1 - License Light - Position Lamp - Anti Theft Unit
Yamaha DT125 Service Manual
inicio - index
coche - car
moto
4x4
quad - buggy
camión - truck
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