Yamaha MX825 Service and Repair Manual

Part number LIT-19616-02-37 covers the MX825 along with the MX775 and MX800; Yamaha issued a single volume for the three.

Confirm the code MX825 on the engine's identification label before working from any figure inside, since the tables carry separate entries where the three units differ in specification.

How the book is organised

• Specifications, with service limits rather than nominal values alone
• Maintenance intervals and adjustment procedures
• Engine teardown and reassembly with torque figures at each step
• Fuel, ignition and electrical inspection
• Troubleshooting arranged by symptom

Nothing here is generalised from other Yamaha equipment. The content is what a dealer technician would have used on the bench for these engines, quoted directly, with the model distinctions left in place where Yamaha drew them.