For the 2005 SX230, Yamaha's service number is LIT-18616-SX-A1 and the model code is SRT1000AD.
The book runs across the 2005 and 2006 model years and also documents the AR230, the AR230 High Output and the SX230 High Output. Those boats were close enough mechanically that the factory handled them together, calling out the differences where the High Output versions diverge.
On the bench
You get the full repair procedures with torque specifications, inspection and wear limits, wiring diagrams, and the diagnostic charts Yamaha's own technicians follow. It covers engine work, jet pump service, fuel and cooling systems, steering and the hull and deck hardware.
Confirm SRT1000AD on your hull identification plate before ordering. On a boat of this age the code is the surest way to know which procedures and specifications apply to what you are holding.
