2007 Yamaha PW80 (W) Service Manual (OEM 4BC-28197-E0)

• Covers 2007 Yamaha PW80 (W) youth minibikes, including the 3RVL and 4BCH regional configurations.
• Official Yamaha publication (First Edition, May 2006). Ref: 4BC-28197-E0.
• Contains 196 pages of detailed component breakdowns, assembly tolerances, and maintenance intervals.

This official workshop manual delivers the exact technical baseline required for maintaining the 2007 Yamaha PW80 (W). Tailored for professional mechanics and experienced DIYers, the document outlines essential maintenance routines for the 79.0 cm³ 2-stroke engine and 3-speed transmission. You get comprehensive data on Autolube pump stroke calibration, carburetor jetting specifications, and drive chain slack adjustment. Having this information available as an instant download means zero downtime in the shop; you can pull up the exact chassis layout, front telescopic fork service data, or rear monocross swingarm specs right at your workbench.

Accuracy is critical when reconditioning youth minibikes. Always verify factory tolerances and torque values to guarantee safe vehicle operation before letting a young rider back on the track. This manual provides those precise numbers, ensuring safe and accurate reconditioning. You will find exact engine assembly specs and chassis geometry, including a 10 Nm cylinder head nut torque and a 0.65 L transmission oil capacity for periodic changes. The reference also documents 110.0 mm of front fork travel and lists the valve stopper height at 7.4–7.8 mm. For professionals looking to understand how factory workshop documentation is structured, this unabridged OEM guide serves as the definitive standard for the PW80 series build.