Engine System:
Engine overhaul, disassembly, assembly, tuning, lubrication, cooling system, fuel system, exhaust system.
Transmission System:
Manual gearbox (4-speed), clutch, driveshafts, maintenance and repair.
Chassis System:
Suspension (front independent, rear solid axle), steering system, wheel bearings, shock absorbers.
Braking System:
Hydraulic drum brakes (front and rear), brake adjustments, fluid replacement, troubleshooting.
Electrical System:
Wiring diagrams, lighting, ignition system (distributor, coil, spark plugs), battery, starter motor, generator, instrumentation.
Bodywork And Interior:
Body panel repair, door mechanisms, seat adjustments, trim, painting (general guidance).
Steering System:
Worm and roller steering mechanism, steering column, tie rods, lubrication.
Wheel And Tire System:
Wheel types, tire sizes (e.g., 125-12), inflation pressures, wheel bearing maintenance.
Fuel Tank And Lines:
Fuel tank capacity, fuel line routing, fuel filter replacement (if applicable).
Exhaust System:
Exhaust manifold, muffler, tailpipe, mounting hardware, potential for rust and leaks.
Maintenance Procedures:
Oil changes, filter replacements, spark plug checks, coolant levels, brake fluid checks, lubrication points.
Repair Procedures:
Step-by-step guides for component disassembly, cleaning, inspection, repair, and reassembly.
Troubleshooting:
Diagnostic charts, common problems and their solutions for engine, electrical, and mechanical systems.
Specifications And Data:
Torque values, clearances, fluid capacities, engine tuning parameters, electrical resistance values.
Carburetor Adjustment:
Detailed procedures for setting idle speed, fuel mixture, and acceleration enrichment.
Ignition System Timing:
Setting ignition timing using timing marks and a timing light (or static timing procedures).
Valve Adjustment:
Procedures for adjusting valve lash (clearance) to maintain proper engine performance.
Body Panel Alignment:
Guidance on adjusting doors, hood, and trunk for proper fit and sealing.
Battery Maintenance:
Checking electrolyte levels, cleaning terminals, charging procedures.
Starter Motor And Generator:
Removal, inspection, testing, and installation procedures.
Depth Of Information:
Comprehensive, covering everything from routine maintenance to major mechanical repairs, suitable for both DIY enthusiasts with basic knowledge and professional technicians.
Diagnostic Methods:
Includes visual inspection, basic electrical tests (multimeter), compression testing, and diagnostic charts for common symptoms.
Diagrams And Illustrations:
Expected to include detailed line drawings, exploded views, and troubleshooting diagrams crucial for repair.
Engine Type:
Air-cooled, two-cylinder, overhead valve (OHV), rear-mounted
Displacement:
479 cc (29.2 cu in)
Bore X Stroke:
66 mm x 72 mm (2.60 in x 2.83 in)
Compression Ratio:
6.5:1 (typical)
Horsepower:
13 hp (9.7 kW) at 4000 rpm
Torque:
32 Nm (23.6 lb-ft) at 3200 rpm (approximate)
Top Speed:
Approx. 90-100 km/h (56-62 mph)
Fuel Delivery:
Single Solex 26/26 or Zenith 26 MB single-barrel carburetor
Fuel Type:
Unleaded gasoline (premium recommended historically, unleaded with octane booster may be required today)
Oil Type:
SAE 30 or SAE 20W-50 (check manual for specific recommendation, modern oils may require additives)
Cooling Method:
Air-cooled
Oil Change Interval:
Every 3,000-5,000 km (2,000-3,000 miles) or annually, whichever comes first. (Specific recommendation in manual).
Tune Up Interval:
Annually or every 10,000 km (6,000 miles), including spark plug, points, and carburetor adjustments. (Detailed in manual).
Coolant Type:
N/A (Air-cooled engine)
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (check manual for specific type and capacity).
Windshield Wiper Fluid:
Water or approved windshield washer fluid.
Engine Oil Capacity:
Approximately 2.5 liters (2.6 US quarts) including filter.
Gearbox Oil Capacity:
Approximately 1.2 liters (1.3 US quarts).
Common Problems:
Carburetor adjustment sensitivity, points and condenser wear, oil leaks from seals, potential for overheating in prolonged heavy use, synchronization of the gearbox, brake drum adjustments.