2011-2014 Yamaha Zuma 50, YW50, YW50FB Scooter Service Manual (P/N LIT-11616-25-31)

• Covers 2011–2014 Yamaha Zuma 50 (YW50 / YW50FB), including 1CD1 and 1CD2 market variants
• Original OEM publication P/N LIT-11616-25-31, first edition June 2011
• 103 pages of technical specifications, maintenance schedules, and adjustment data

Essential Workshop Data

Looking for reliable factory numbers? This OEM manual delivers the exact specifications and maintenance protocols for the 1CD-series build. It skips the guesswork. Organized into nine dedicated chapters, the documentation gives you quick access to crucial data for liquid-cooled engine performance, fuel injection mapping, and electrical diagnostics. We know time is money in the service bay. Having clear wiring schematics and cable routing diagrams on hand directly speeds up your diagnostic workflow.

The guide thoroughly details assembly and removal sequences for body covers, panels, and leg shields—a massive time-saver when you need to access the 4-stroke engine or V-belt transmission. You will find the precise manufacturer values for routine checks, including throttle cable free play and cooling system maintenance. Please note that working on fuel-injected engines and high-pressure cooling systems carries inherent physical risks. Applying these factory specifications safely requires standard workshop protective gear and solid mechanical fundamentals.

Specification Highlights

Instead of searching through forums, pull the hard data straight from the source. Engine compression pressure is clearly documented at a standard 1450 kPa (206.24 psi). The specification tables confirm a 17.9 mm standard width for the transmission V-belt. You also get exact fluid requirements, such as the 0.50-liter coolant capacity for the entire system route, alongside strict valve clearances (0.10–0.16 mm for the intake and 0.18–0.24 mm for the exhaust).