Need help?Do you have a question about the Yamaha MZ400 and is the answer not in the manual?
Explains how to interpret special notations and symbols used within the manual for safety and clarity.
Details how to identify the MZ400 and MX400 models, including engine and starting serial numbers.
Provides comprehensive general specifications for MZ400 and MX400 engines, including dimensions, displacement, and output.
Lists maintenance specifications for engine components such as pistons, rings, cylinder head, and cylinder for MZ400/MX400.
Details maintenance specifications for the crankshaft, including clearances, runout, and pin diameter.
Provides maintenance specifications for the connecting rod, including clearances and diameters.
Lists maintenance specifications for the camshaft, including lobe dimensions and journal diameter.
Specifies maintenance data for valves, including head/stem diameters, length, seat width, and clearances.
Details the runout limit for the push rod.
Lists free length, limit, and installed length specifications for valve springs.
Provides maintenance specifications for the carburetor, including jet sizes, float height, and throttle valve.
Specifies the attachment hole location for the governor arm tension spring.
Details the high and low engine speed specifications for MZ400 and MX400.
Lists specifications for the ignition system, including timing, coil resistance, and spark plug gap.
Provides specifications for the electric starting system, including insulator depth, insulation resistance, and brush wear.
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