Yamaha covered the 2011 VXR, code VX1800A-K, in service manual LIT-18616-03-31. The same book spans 2011 through 2014 and also documents the Wave Runner VXS.
Pairing the VXR and VXS made sense because they share their platform. One volume, one set of procedures, with model-specific figures where the two diverge.
As service material it is comprehensive in the way a factory book is: assembly and disassembly steps in the order the work is done, torque specifications, service limits, wiring diagrams with connector and circuit identification, and troubleshooting arranged as sequences of checks rather than lists of possibilities.
Verify VX1800A-K on your hull before following a procedure, and note LIT-18616-03-31 in your records. When the next owner or the next technician asks what the machine was serviced against, those two numbers answer it completely.
