2022 Yamaha 212XD Service and Repair Manual
AXT1800C-X is the 2022 212XD. Look for service information and you are looking for LIT-18616-04-11, which Yamaha wrote to cover this boat and its siblings, the 212, 212S, 212SD, 212SE and 212XE, through the 2022 and 2023 model years.
What separates factory literature from general advice is that every number in it is specified rather than estimated. Fastener torque, clearance and wear limits, fluid capacities and service intervals come from the people who built the boat, and the wiring diagrams match the harness actually installed.
Chapters address engine repair, jet pump and driveline, fuel and cooling, bilge and plumbing, steering and controls, electrical systems and hull hardware, with symptom-based diagnosis for when a fault has no obvious cause.
Read AXT1800C-X off the plate and keep it with the part number for parts ordering.