🏷️ Basic Information

Make:

Sachs

Model:

Madass 125

Model Variant:

Standard

Vehicle Type:

Motorcycle

Engine Type:

Internal Combustion, Motorcycle Engine

👋 Introduction

Purpose:

To provide in-depth technical guidance for the maintenance, diagnosis, and repair of the Sachs Madass 125 motorcycle, empowering owners and technicians.

Value Proposition:

Offers a comprehensive alternative to potentially scarce or less detailed manufacturer documentation, saving time and money on repairs and ensuring correct procedures are followed.

User Benefit 1:

Facilitates informed decision-making regarding repairs and maintenance.

User Benefit 2:

Enhances user knowledge and confidence in servicing the vehicle.

User Benefit 3:

Provides access to technical data and procedures not readily available elsewhere.

📋 Manual Details

Primary Focus:

Workshop Repair and Service

Systems Covered:

Engine Mechanical, Lubrication, Fuel, Clutch, Transmission, Electrical, Ignition, Chassis, Bodywork

Estimated Pages:

Comprehensive (Exact count not provided, but implied to be extensive given the coverage areas)

Type:

Workshop Service Manual / Repair Manual

Language:

English

File Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Disassembly, assembly, cylinder head, valves, cylinder, piston, crankshaft, timing chain tensioner

Lubrication System:

Oil pump, oil passages, oil filter, lubrication specifications

Fuel System:

Carburetor (likely), fuel lines, fuel pump (if applicable), fuel tank, fuel filters

Drivetrain:

Clutch operation, gearshift mechanism, transmission assembly, kick starter mechanism

Electrical System:

Battery, charging system (alternator), starter motor, lighting, wiring diagrams, fuses

Ignition System:

Ignition coil, spark plug, CDI unit, ignition timing

Chassis And Suspension:

Frame, forks, rear shock absorbers, steering head bearings, wheel bearings, brake systems

Bodywork:

Panels, fairings, seat, fuel tank mounting

Maintenance:

Scheduled maintenance tasks, fluid changes, filter replacements, adjustments

Troubleshooting:

Diagnostic procedures for common and uncommon issues, symptom-based guides

Repair And Rebuild:

Step-by-step instructions for component disassembly, repair, and reassembly

Specifications:

Torque values for critical fasteners, fluid capacities, clearances, measurements

Depth:

Comprehensive, covering detailed mechanical and electrical procedures suitable for professional mechanics and experienced DIY enthusiasts.

📊 Manual Specifications

Compatibility:

All versions of Windows & Mac

Reader Requirement:

Adobe PDF Reader

Searchability:

Likely text-searchable PDF for efficient information retrieval.

Quality:

Professional digital format, ensuring clarity of diagrams and text when viewed or printed.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Family:

Likely air-cooled, single-cylinder four-stroke (common for 125cc motorcycles of this era and style).

Displacement:

125cc (Nominal)

Bore X Stroke:

Specific dimensions available within the manual.

Compression Ratio:

Specific ratio detailed in the manual.

Horsepower Output:

Typically in the range of 8-12 HP, but specific factory figures are in the manual.

Torque Output:

Specific torque figures and delivery curves provided in the manual.

Fuel Delivery:

Likely Carburetor (e.g., Keihin, Mikuni) for this displacement and era. Injection details would be noted if applicable.

Fuel Type:

Unleaded gasoline (specific octane rating to be confirmed in manual).

Ignition Type:

Electronic Ignition (CDI - Capacitive Discharge Ignition) is highly probable.

Oil Type Specification:

Specific oil viscosity grade (e.g., SAE 10W-40) and API service classification will be detailed.

Oil Capacity:

Specific oil volume for engine and filter change documented.

🔧 Transmission

Transmission Type:

Likely a 5-speed or 6-speed constant mesh manual transmission.

Optional Gearbox:

No optional transmissions are typically offered for this model type.

Clutch Type:

Wet multi-plate clutch is standard for this class of motorcycle.

Gear Ratios:

Individual gear ratios for each speed are provided in the manual.

Final Drive:

Chain drive is standard, with specifications for chain type and adjustment.

Transmission Oil Specification:

Specific transmission oil type and viscosity will be detailed in the manual.

📐 Dimensions

Overall Length:

Specific dimensions available in the manual.

Overall Width:

Specific dimensions available in the manual.

Overall Height:

Specific dimensions available in the manual.

Wheelbase:

Specific wheelbase measurement provided in the manual.

Seat Height:

Specific seat height measurement documented in the manual.

Dry Weight:

Specific dry weight figures are to be found within the manual.

Curb Weight:

Specific curb weight (with fluids) will be detailed in the manual.

Maximum Load Capacity:

Information on payload capacity, if specified by the manufacturer, will be present.

🛡️ Safety Features

Safety Certifications:

No specific crash test ratings apply in the same way as cars; however, compliance with road safety standards will be implied.

Braking System:

Front and rear disc brakes are typical. Manual will detail brake pad replacement, fluid type (DOT 3/4), bleeding procedures, and caliper service.

Suspension System:

Front telescopic forks and rear swingarm with adjustable shock absorbers. Manual covers fork seal replacement, oil levels, and shock absorber service.

Lighting:

Headlight, taillight, brake lights, turn signals. Manual covers bulb replacement and electrical diagnostics for lighting circuits.

Tires:

Specific tire sizes for front and rear are listed in the manual, along with recommended pressures.

💡 Technology Features

Infotainment System:

N/A (Basic motorcycle, no infotainment system).

Driver Assistance Features:

N/A (Basic motorcycle, no electronic driver assistance features).

Connectivity Features:

N/A (Basic motorcycle, no connectivity features).

Instrument Panel:

Typical analog or digital display for speed, RPM, fuel level, indicator lights. Manual will cover diagnostics of these components.

🔧 Maintenance

Oil Change Interval:

Typically every 3,000-5,000 km or 6-12 months, as detailed in the manual.

Air Filter Cleaning Replacement:

Scheduled checks and replacement intervals provided in the manual.

Spark Plug Replacement:

Intervals for checking and replacing the spark plug will be specified.

Valve Clearance Adjustment:

Recommended intervals for checking and adjusting valve clearances will be documented.

Chain Lubrication Adjustment:

Recommended frequency for chain maintenance (cleaning, lubrication, tension adjustment) will be provided.

Engine Oil Grade:

Refer to manual for exact specification, likely SAE 10W-40 API SG or higher.

Brake Fluid Type:

Refer to manual, typically DOT 3 or DOT 4.

Fork Oil Type Level:

Specific fork oil viscosity and fill level detailed for suspension service.

Common Wear Items:

Brake pads, clutch plates, chain and sprockets, tires, spark plugs, air filter, battery are common wear items requiring regular inspection and replacement.

Electrical Concerns:

While not guaranteed to be in the manual, occasional electrical connector issues or battery charging system problems can occur on any motorcycle.

Carburetor Tuning:

Carburetors may require periodic cleaning and adjustment for optimal performance and fuel efficiency.

📚 Vehicle History

Sachs History:

Sachs is a historic German brand, known for its motorcycle components and engines. Its acquisition and integration into Zongshen, a major Chinese manufacturer, means the Madass 125 likely leverages this combined heritage.

Madass Lineage:

The Madass line, particularly the 125cc variants, is known for its distinctive, somewhat utilitarian and robust design. It has seen various minor updates over its production run.

Manufacturing Origin:

Primarily manufactured in China under license or in partnership with Sachs/Zongshen.

Production Years:

Specific production years covered by the manual are not explicitly stated, but it is generally relevant for models produced from the mid-2000s onwards.

🏆 Awards & Recognition

Awards And Certifications:

No specific awards or certifications are typically highlighted for this model category. Focus is on practical serviceability.