Yamaha wrote one service book for three machines in this family, and its part number is LIT-19616-02-37. The MX775 is the unit named on this page; the MX800 and MX825 are covered by the same pages.
The model code stamped on the engine reads MX775. That code, together with the part number, is what confirms you have the right document.
Shared coverage
- MX775
- MX800
- MX825
Because the three appear together, specifications are given per model where they differ, and a value quoted for one engine should not be carried across to another without checking the table it came from.
The procedures are the factory ones: maintenance intervals, disassembly and reassembly order, torque figures, fuel and ignition service, measurement limits, and diagnosis worked from symptom back to cause.
