2001-2006 Yamaha PW50(N) Service Manual • Publication 5PG-28199-80
Yamaha Models Covered & Key Technical Specifications
Models: Yamaha PW50(N)
Model Years: 2001–2006
Technical Data:
- Engine displacement: 49 cm³
- Compression ratio: 6.0:1
- Fuel tank capacity: 2.0 L (0.53 US gal)
- Transmission oil capacity (periodic): 0.3 L (0.32 US qt)
- Spark plug (AUS/NZ): BP4HS (NGK) or W14FP-L (DENSO)
- Spark plug (others): BPR4HS (NGK)
- Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)
- Spark plug torque: 20 Nm (14 ft·lb)
- Throttle free play: 1.5–3.5 mm (0.06–0.14 in)
- Brake lever free play: 3–5 mm (0.12–0.20 in)
- Idle speed: 1,650–1,750 r/min
- Tire pressure (front/rear): 100 kPa (15 psi)
- Steering head torque: 32 Nm (23 ft·lb)
- Minimum piston clearance: 0.034–0.047 mm (0.0013–0.0018 in)
- Front wheel axle torque: 40 Nm (29 ft·lb)
- Rear wheel axle torque: 60 Nm (43 ft·lb)
Yamaha Manual Features & Content Preview
2001–2006 Yamaha PW50(N) Official Service Documentation
- Complete 136-page official OEM publication (P/N 5PG-28199-80, 1st Edition May 2000) for the 2001–2006 Yamaha PW50(N) series
- Available as an instant download directly to your account immediately after checkout
- Includes detailed operation guidelines, essential parent safety protocols, and strict periodic maintenance intervals
- Features 4 exploded-view carburetor diagrams, 2 steering/brake adjustment schematics, and 2 detailed clutch assembly views
- Fully searchable OCR text layer allows you to locate specific torque specs in seconds without flipping pages
- Print-resolution quality preserves the finest exploded-view details for harsh workshop environments
Technical Overview and Structure
This 1st edition service manual delivers critical reference data for both professional technicians and dedicated DIYers. Initial chapters focus on precise vehicle identification through engine and frame serial numbers. You will find specific guidance on youth-oriented controls, such as the speed limiter and power reduction plate. The documentation thoroughly details mandatory pre-operation checks, highlighting proper brake lever adjustment and exact tire pressure specifications. Subsequent sections dictate the periodic maintenance schedule. They outline exact intervals for spark plug inspection, air filter cleaning, and routine oil changes utilizing recommended Yamalube products.
Specification Highlights
The resource provides comprehensive torque values for chassis components alongside strict engine tolerances for the 49cc two-stroke engine. For instance, cylinder specification tables document the piston clearance at exactly 0.034–0.047 mm. The transmission oil capacity is set at 0.3 liters for routine changes, while the clutch shoe lining thickness mandates a strict wear limit of 0.7 mm. Working on motorized vehicles carries inherent risks. Always rely on this original OEM documentation to ensure accurate assembly and verify that all mechanical work meets factory safety standards before operation.
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