Yamaha closed this group of Phazers with the 2010 model, code PZ50GTZB, documented in LIT-12618-PZ-51 alongside the 2008 and 2009 machines and the Venture Lite.
Reading it, you get the factory's own account of how the sled comes apart and what each part has to measure before it goes back. Torque figures are attached to their steps. Wear limits are tabulated. Carburetion, ignition and drive adjustments have their specified ranges rather than a description of what feels right.
The wiring diagrams are the part owners underestimate until they need them, and they are printed in full here.
Troubleshooting works from the symptom backward, and the maintenance schedule lists intervals for the items that quietly decide how well a sled ages. Confirm PZ50GTZB against the machine and LIT-12618-PZ-51 against the book, and the fitment question is settled.
