Yamaha YBR 125 Service Manual page 7

Check of front fork
Adjustment of rear shock absorber
Check of tire
Check of steering device
Electrical system
Check of battery
Chapter 4 Disassembly of engine
Dissassembly of engine
Disassembly of exhaust pipe and lead wire
Disassembly of carburetor,clutch cable,speedometer cable and driving chain
Disassembly of engine
Disconnection of engine
Disasembly of cylinder head,cylinder and piston
Disassembly of starting motor,clutch and oil pump
Disassembly of starting axle and idle gear
Di s assembly of shift axle
Disassembly of rotator
Disconnection of crankcase
Disassembly of balance device,transmission and shift rod
Disassembly of crank,balance block
Disassembly of rocker arm,camshaft
Disassembly of air valve
Check and repair
Cylinder head
Air valve seat
Air valve and guide pipe of air valve
Air valve spring
Camshaft
Rocker arm and rocker arm shaft
Timing chain,sprocket,guide plate of chain,chain tensioner
Cylinder and piston
Piston pin
Piston ring
Crank ............................................................................................................
Balance device
Clutch
Transmission,shift rod
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