This comprehensive Yamaha PW50B parts manual provides detailed coverage of the cylinder head and crankshaft assembly components for this popular youth motorcycle. The manual includes precise part numbers, descriptions, and quantity specifications for all components in these critical engine systems, making it an essential resource for mechanics, owners, and enthusiasts working on PW50B maintenance and repairs.
The cylinder section covers all necessary components including the cylinder head (4J2-11111-00-00), cylinder gasket, NGK BP4HS spark plug, cylinder assembly, and associated bolts and nuts with their exact part numbers and quantities. The crankshaft assembly section provides complete details for the crankshaft assembly (3L5-11400-01-00), individual crank components, connecting rod, bearings, woodruff key, washers, and nuts with precise Yamaha part numbering.
This vintage PDF document represents authentic Yamaha parts documentation that has become increasingly difficult to find in physical form. The manual’s clear organization and detailed part specifications make it invaluable for restoration projects, routine maintenance, or parts ordering for the Yamaha PW50B motorcycle. Each component listing includes the official Yamaha part number, description, and required quantity for proper assembly.
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