Yamaha wrote LIT-11616-KD-49 to cover the Grizzly 450 across the 2011 to 2014 model years, and in the same volume it addresses both the GRIZZLY 450 4WD and the GRIZZLY 450 EPS 4WD. The 2014 EPS machine here is coded YFM450PEL.
Power steering adds a system that general guides tend to skip. Because this is the factory book, the EPS components are documented alongside everything else, with the diagnostic approach Yamaha intended and wiring diagrams that include the circuits involved.
The rest is standard workshop material at dealer depth: maintenance intervals, engine and transmission procedures in factory order, drive system service, brake and suspension specifications, and torque tables throughout.
Check YFM450PEL against your machine before ordering, since the 4WD and EPS variants share this book but not every part.
