For a 2025 SX195 the correct factory reference is LIT-18616-03-87, and the hull you are working on is coded TP1800B-BAP.
Yamaha stretched this manual over eight model years, 2019 through 2026, and brought in the AR190, AR190 CALIFORNIA, AR195, SX190 and SX190 CALIFORNIA. The California variants are listed separately because their emissions equipment differs, and the manual treats them as such.
The technical sections give overhaul and reassembly steps in the factory order, torque values and wear limits, wiring diagrams with circuit tests, the periodic maintenance schedule, and troubleshooting trees that begin from a complaint.
Given how many boats share this book, checking TP1800B-BAP against your hull plate is not a formality. It is what tells you which column in the specification tables to read.
