Segment:
Lightweight, entry-level scooter popular for urban commuting and recreational use.
Target Audience:
New riders, urban commuters, those seeking economical transportation.
Competitors:
Honda Dio, Suzuki Address, Aprilia Scarabeo (contemporary models in the scooter segment).
Design:
Compact, step-through design for ease of use and maneuverability.
Engine Type:
Air-cooled, 2-stroke engine, known for simplicity and responsive acceleration.
Engine:
Comprehensive coverage of engine disassembly, assembly, tuning, and troubleshooting.
Fuel System:
Carburetor service, fuel delivery system, fuel tank maintenance.
Ignition System:
Spark plug diagnosis, ignition timing, CDI unit testing.
Transmission And Drivetrain:
Gearbox maintenance, clutch operation, drive belt inspection and replacement.
Chassis And Suspension:
Front fork service, rear shock absorber maintenance, frame inspection.
Brakes:
Brake caliper service, brake fluid replacement, brake lever and pedal adjustment.
Electrical System:
Wiring diagrams, lighting system, battery maintenance, starter system.
Cooling System:
Air cooling system (fin cleaning, fan operation if applicable).
Exhaust System:
Muffler inspection, exhaust pipe sealing.
Wheels And Tires:
Tire pressure, wheel bearing inspection, rim maintenance.
Maintenance:
Routine checks, lubrication, filter replacement, spark plug replacement, brake adjustment.
Troubleshooting:
Diagnosis of common problems, step-by-step fault finding guides.
Repair:
Detailed instructions for component repair and replacement.
Disassembly And Assembly:
Complete guides for dismantling and reassembling major vehicle components.
Adjustments:
Carburetor tuning, brake lever travel, idle speed adjustment.
Depth:
Comprehensive, covering basic maintenance to in-depth engine rebuilds and electrical diagnostics.
Diagnostics:
Includes diagnostic charts and procedures for identifying and resolving issues.
Specifications:
Provides critical torque values, clearances, and fluid specifications.
Engine Type:
2-stroke, single-cylinder
Displacement:
50cc (approximately)
Bore X Stroke:
Specifics available in manual (e.g., 39.0 mm x 41.4 mm)
Cooling System:
Forced air cooling
Compression Ratio:
Specifics available in manual (e.g., 7.6:1)
Lubrication:
Autolube (pre-mix or oil injection system)
Horsepower:
Approx. 4-5 HP (figures vary based on tuning and specific market)
Torque:
Specifics available in manual
Carburetor Model:
Mikuni VM Series (specific model like VM12 or similar common for 50cc scoots)
Fuel Type:
Unleaded gasoline
Fuel Octane Rating:
87 AKI (minimum recommended)
Fuel Tank Capacity:
Approx. 4.0 Liters (specifics in manual)
Length:
Approx. 1660 mm (specifics in manual)
Width:
Approx. 650 mm (specifics in manual)
Height:
Approx. 1020 mm (specifics in manual)
Wheelbase:
Approx. 1175 mm (specifics in manual)
Dry Weight:
Approx. 67 kg (specifics in manual)
Gross Vehicle Weight Rating:
Specifics available in manual
Front Tire Size:
3.00-10 42J (common size, check manual for exact)
Rear Tire Size:
3.00-10 42J (common size, check manual for exact)
Front Brake Type:
Drum brake
Rear Brake Type:
Drum brake
Crash Safety:
Not applicable to motorcycle safety ratings in the same way as cars.
Braking System:
Integral drum braking system for controlled deceleration.
Frame Construction:
Robust steel frame designed for stability and rider support.
Lighting:
Headlight, taillight, and turn signals for visibility.
Oil Change:
Every 1,000-2,000 km or annually (check manual for specifics based on oil type).
Air Filter Cleaning Or Replacement:
Every 1,000-2,000 km or as needed based on operating conditions.
Spark Plug Inspection And Replacement:
Every 2,000-3,000 km. Use specified plug type (e.g., NGK BR7HS-10 or equivalent).
Brake Adjustment:
As needed, typically before every long ride or if lever feel changes.
Drive Belt Inspection:
Every 4,000-6,000 km for wear and tension.
Engine Oil Type:
2-stroke engine oil, JASO FB or FC rated, or specific Yamaha equivalent.
Gear Oil Type:
Hypoid gear oil SAE 80 or 85W (check manual for exact viscosity and API classification).
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid (check manual for specification).
Carburetor Clogging:
Common in older 2-stroke scooters due to infrequent use or fuel degradation; requires cleaning.
Drive Belt Wear:
The CVT belt can wear over time, leading to reduced acceleration or slipping.
Electrical Connections:
Corrosion or loose connections in wiring harnesses can cause intermittent electrical issues.
Yamaha Motor Corporation:
Yamaha Motor Company, a division of Yamaha Corporation, is renowned for its musical instruments and its significant presence in the motorcycle industry since its founding in 1955.
Razz Introduction:
The Yamaha Razz was introduced in the late 1980s as Yamaha's entry into the popular 50cc scooter market, characterized by its lightweight, agile, and user-friendly design.
Production Period:
Produced from the late 1980s through the early 2000s, with the 1999 model representing a refinement of its initial design.
Manufacturing Location:
Primarily manufactured in Japan.
