Vehicle Segment:
Sub-compact scooter, popular for urban commuting and light recreational use.
Competitors:
Competed with other 50cc scooters from brands like Honda (e.g., Aero 50), Suzuki (e.g., FA50), and various European and Taiwanese manufacturers of the era.
Design Philosophy:
Emphasized reliability, ease of operation, fuel efficiency, and a user-friendly experience, making it ideal for novice riders and everyday transport.
Manual Benefit:
Empowers owners to perform a wide range of maintenance and repair tasks, significantly reducing labor costs associated with dealership or independent shop visits.
Manual Content Scope:
Comprehensive repair, maintenance, rebuilding, refurbishing, and restoration procedures for the Yamaha SH50 Razz.
Estimated Pages:
Varies based on specific version, but typically extensive for a full workshop manual covering multiple years.
Type:
Service Repair Workshop Manual
Language:
English (Assumed based on typical market availability of such manuals)
Format:
Digital Download (PDF implied by product description)
Powertrain:
Engine disassembly, assembly, troubleshooting, performance tuning; carburetor service and adjustment; exhaust system maintenance.
Chassis And Frame:
Frame inspection, steering system overhaul, suspension fork service, rear shock absorber replacement, wheel and tire service.
Brakes:
Front and rear brake system maintenance, including hydraulic line replacement, caliper service, brake pad replacement, and adjustment.
Electrical System:
Wiring diagrams, lighting system service, ignition system troubleshooting, battery maintenance, starter system inspection, charging system testing.
Bodywork And Trim:
Panel removal and installation, seat service, storage compartment access, fairing repair and replacement.
Preventative Maintenance:
Scheduled maintenance tasks, fluid level checks and changes, filter replacements, lubrication points and intervals.
Diagnostic Procedures:
Troubleshooting guides for common and uncommon issues, symptom-based diagnostics, fault code identification (if applicable).
Repair And Overhaul:
Step-by-step instructions for component disassembly, repair, reassembly, and adjustment for all major vehicle systems.
Restoration Guidance:
Advice and procedures for bringing older models back to original specifications or improving their condition.
Depth Of Information:
Extensive, covering everything from basic fluid changes to complete engine and transmission rebuilds, with detailed torque specifications and diagnostic procedures.
Engine Type:
2-stroke, air-cooled, single-cylinder
Displacement:
49 cc (Cubic Centimeters)
Bore X Stroke:
40.0 mm x 39.2 mm (Typical for this engine class)
Compression Ratio:
Approx. 7.2:1 (Typical for this engine class)
Horsepower:
Approximately 5-6 HP (Horsepower) at around 6500-7000 RPM (Revolutions Per Minute)
Torque:
Approximately 5-5.5 Nm (Newton-meters) at around 6000-6500 RPM
Carburetor Model:
Typically a Mikuni VM12 or similar.
Fuel Delivery:
Gravity feed from the fuel tank.
Fuel Type:
Unleaded gasoline (RON 91 or higher recommended)
Oil Mixing:
Autolube system (pre-mix oil is automatically injected into the fuel/air mixture).
2-Stroke Oil Type:
JASO FD certified 2-stroke scooter oil.
Overall Length:
Approx. 1680 mm (66.1 inches)
Overall Width:
Approx. 660 mm (26.0 inches)
Overall Height:
Approx. 1030 mm (40.6 inches)
Wheelbase:
Approx. 1205 mm (47.4 inches)
Dry Weight:
Approx. 71 kg (157 lbs)
Gross Vehicle Weight Rating Gvwr:
Approx. 165 kg (364 lbs)
Fuel Tank Capacity:
Approx. 4.5 Liters (1.2 US Gallons)
Crash Test Data:
Not typically subject to automotive-style crash testing as it is a scooter.
Braking System:
Front and rear drum brakes (some later models or specific markets might have offered a front disc brake).
Lighting:
Headlight, taillight, brake light, turn signals.
Body Structure:
Underbone frame construction, designed for stability and rider ergonomics.
Display Panel:
Basic analogue instrument cluster including speedometer, fuel level indicator (if equipped), and indicator lights.
N A:
No electronic driver assistance systems are present on this model.
N A:
No connectivity features.
Oil Change Interval:
Every 2000-3000 km (1200-1800 miles) or annually, whichever comes first (for gearbox oil).
Air Filter Cleaning:
Clean every 1000 km (600 miles), replace every 3000-4000 km (1800-2500 miles) or as needed.
Spark Plug Replacement:
Replace every 3000-5000 km (1800-3000 miles) or as needed; check gap at 1000 km (600 miles).
Belt Drive Inspection:
Inspect CVT belt for wear and damage every 2000 km (1200 miles); replace at recommended intervals (typically 8000-10000 km or 5000-6000 miles).
Gearbox Oil Type:
Yamalube Gear Oil or equivalent API GL-4, SAE 80W-90.
Gearbox Oil Capacity:
Approx. 100 ml (0.1 Liters / 0.1 US Quarts)
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Carburetor Clogging:
Common in older scooters due to stale fuel or debris; requires cleaning and proper jetting.
Cvt Belt Wear:
Wear and tear on the CVT belt can lead to slippage and reduced acceleration; periodic inspection and replacement are crucial.
Electrical Connections:
Corrosion or loose connections in the wiring harness can cause intermittent electrical issues.
Engine Compression:
Over time, piston rings and cylinder bore can wear, reducing engine compression and power; a rebuild may be necessary.
Yamaha Legacy:
Yamaha Motor Company is renowned for its long history in motorcycle and powersport vehicle manufacturing, known for innovation and performance.
Sh50 Razz Introduction:
Introduced as Yamaha's entry into the popular 50cc scooter market, offering a compact and stylish option.
Model Updates:
While the core design remained consistent, minor updates likely occurred in terms of graphics, color options, and possibly minor mechanical refinements over its production run.
Manufacturing Locations:
Likely manufactured in Yamaha's global production facilities, with significant production for North American markets originating from Japan or potentially other Asian facilities.
