Target Audience:
Yamaha 135LC owners and technicians seeking to perform maintenance and repairs
Value Proposition:
Provides information and procedures equivalent to authorized dealer service departments, enabling cost savings by performing DIY repairs.
Manual Advantage:
Enables owners to be better informed and perform repairs like a professional technician, enhancing vehicle value and longevity.
Engine Systems:
Engine disassembly and reassembly, lubrication system, fuel system, ignition system, exhaust system
Drivetrain Systems:
Transmission disassembly and reassembly
Chassis Systems:
Body, electrical system
Fuel System Details:
In-depth coverage of carburetor assembly, disassembly, cleaning, and adjustment, including fuel filter replacement.
Ignition System Details:
Detailed information on the ignition coil, CDI unit, spark plug specifications, and timing adjustments.
Lubrication System Details:
Procedures for oil pump inspection and replacement, oil filter replacement, and lubrication of critical engine components.
Exhaust System Details:
Information on exhaust pipe removal, installation, and potential maintenance of exhaust components.
Bodywork Details:
Procedures for fairing removal and installation, seat maintenance, and other body panel work.
Maintenance Procedures:
Routine maintenance, tune-ups, servicing schedules, fluid level checks and changes
Repair Procedures:
Component removal and installation, assemblies and disassemblies, troubleshooting, overhaul procedures
Troubleshooting Guides:
Systematic diagnostic flowcharts and explanations for common malfunctions across various vehicle systems.
Technical Expertise Level:
Assumes technician is fully conversant with general automobile practices, emphasizes special aspects of the product
Diagnostic Capability:
Diagnostic and repair procedures for when trouble occurs
Component Manufacturer Instructions:
Incorporates instructions from proprietary component manufacturers to ensure correct understanding and performance assessment.
Engine Type:
Likely a single-cylinder, four-stroke, liquid-cooled engine (typical for Yamaha's performance-oriented small displacement bikes of this era, though specific details require manual consultation).
Horsepower Range:
Expected to be in the 15-20 HP range, indicative of performance-oriented small displacement motorcycles.
Fuel Delivery:
Likely carburetor-fed, with specific jetting and adjustment procedures detailed in the manual.
Engine Construction:
Detailed information on cylinder, piston, crankshaft, camshaft, and valve train assembly and disassembly will be present.
Cooling Method:
Liquid-cooled, with procedures for coolant replacement, radiator maintenance, and thermostat operation.
Transmission Type:
Likely a multi-plate wet clutch with a sequential manual gearbox (e.g., 5 or 6-speed), common for this class of motorcycle.
Clutch Operation:
Instructions for clutch maintenance, adjustment, and replacement of clutch plates and springs.
Gear Selection:
Procedures for gearbox disassembly, inspection of gears and shift drum, and reassembly.
Vehicle Type:
Sport Motorcycle / Underbone
Dry Weight:
Specific dry weight figures would be detailed in the manual, typically in the 100-110 kg range for this class.
Wet Weight:
Wet weight specifications, including fluid capacities, would be found within the manual.
Safety Equipment Emphasis:
Manual emphasizes the use of safety equipment and adherence to safety precautions during repairs.
Braking System:
Information on brake system maintenance, including disc and pad inspection/replacement, fluid checks, and bleeding procedures.
Frame Construction:
Details on frame integrity checks and any associated components that contribute to overall safety.
Instrumentation:
Details on the operation and maintenance of the instrument cluster, including speedometer, tachometer, and indicator lights.
Lighting System:
Procedures for headlamp, taillight, and turn signal bulb replacement and adjustment.
Electrical Diagnostics:
Comprehensive wiring diagrams and troubleshooting guides for the electrical system, including battery, charging system, and ignition components.
Routine Maintenance Schedule:
The manual will contain detailed service intervals for oil changes, filter replacements, chain adjustments, and other regular maintenance tasks.
Engine Oil Type:
Likely specifies a JASO MA certified motorcycle oil, with specific viscosity grades (e.g., 10W-40) detailed.
Coolant Type:
Will specify the correct type of ethylene glycol-based antifreeze coolant and its mixture ratio with distilled water.
Brake Fluid Type:
Likely DOT 3 or DOT 4 brake fluid, with instructions for bleeding and replacement.
Common Wear Items:
The manual's detailed procedures will implicitly address common wear items such as spark plugs, air filters, brake pads, and chain/sprockets.
Torque Specifications:
Crucial torque values for engine components, chassis fasteners, and wheels will be provided to ensure correct assembly and prevent damage.
Special Tools:
Identifies and illustrates any specialized tools required for specific adjustments or repairs, often with Yamaha part numbers.
Yamaha Motorsport Legacy:
Yamaha's long-standing reputation for performance, reliability, and innovation in the motorcycle industry.
135Lc Lineage:
The 135LC is known as a performance-oriented underbone motorcycle, popular in many Asian markets for its sporty design and capable engine.
Production Focus:
The manual covers a specific production run, indicating a defined era of design and componentry for the 135LC model.
