Yamaha MX800 Service and Repair Manual

The MX800 shares its factory service book with two sister engines, the MX775 and the MX825, all under Yamaha part number LIT-19616-02-37. One document, three models, which is worth knowing when a specification you are reading has more than one column.

The code to look for on the engine is MX800.

Where figures differ between the three, Yamaha separates them in the tables. Where they are common, one value is given. Reading the column heading before the number is the habit that keeps a torque figure or clearance from being applied to the wrong engine.

Included

Specifications and service limits, periodic maintenance, engine disassembly and reassembly with tightening torques, carburetion and ignition, electrical inspection with expected readings, and symptom based troubleshooting. This is the dealer document rather than a rewritten guide.