Pre-Operation Inspection And Maintenance; General Inspection And Maintenance - Yamaha YZ 2023 Series Owner's Service Manual

PRE-OPERATION INSPECTION AND MAINTENANCE

EAM20134
PRE-OPERATION INSPECTION AND MAINTENANCE
Before riding for break-in operation, practice or a race, make sure the machine is in good operating con-
dition.
Before using this machine, check the following points.
EAM30209

GENERAL INSPECTION AND MAINTENANCE

Item
Coolant
Fuel
Engine oil
Gear shifter and clutch
Throttle grip/Housing
Brakes
Drive chain
Wheels
Steering
Front forks and rear
shock absorber
Cables (wires)
Exhaust pipe
Rear wheel sprocket
Lubrication
Bolts and nuts
Lead connectors
Settings
TIP
Perform usual maintenance enough so that, in the race course, a confirmation of that and simple setting
adjustments may only be left, in order to get enough time to use effectively.
Inspect
Check that coolant is filled up to the radiator cap. Check the
cooling system for leakage.
Check that a fresh gasoline is filled in the fuel tank. Check
the fuel line for leakage.
Check that the oil level is correct. Check the crankcase and
oil line for leakage.
Check that gears can be shifted correctly in order and that
the clutch operates smoothly.
Check that the throttle grip operation and free play are cor-
rectly adjusted. Lubricate the throttle grip and housing, if
necessary.
Check the play of front brake and effect of front and rear
brake.
Check drive chain slack and alignment. Check that the
drive chain is lubricated properly.
Check for excessive wear and tire pressure. Check for
loose spokes and have no excessive play.
Check that the handlebar can be turned smoothly and have
no excessive play.
Check that they operate smoothly and there is no oil leak-
age.
Check that the clutch and throttle cables move smoothly.
Check that they are not caught when the handlebars are
turned or when the front forks travel up and down.
Check that the exhaust pipe is tightly mounted and has no
cracks.
Check that the rear wheel sprocket tightening bolt is not
loose.
Check for smooth operation. Lubricate if necessary.
Check the chassis and engine for loose bolts and nuts.
Check that the stator coil assembly, ECU and ignition coil
are connected tightly.
Is the machine set suitably for the condition of the racing
course and weather or by taking into account the results of
test runs before racing? Are inspection and maintenance
completely done?
3-5
Page
3-20, 3-21, 3-21,
6-4, 6-4
1-24
3-13, 3-13
3-15, 3-15
3-11, 3-34
3-23, 3-23, 3-24,
3-24, 3-24, 3-23,
3-25, 3-24
3-26, 4-68, 4-68,
4-69, 4-69, 4-69
3-33, 3-33, 3-33,
3-33
3-27
3-28, 3-29, 3-30,
3-30, 3-32
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3-18
4-10, 4-10, 4-10,
4-10, 4-11, 4-11
3-34, 3-34, 3-34,
3-34
1-27
1-11
10-1, 10-1, 10-1,
10-2, 10-2, 10-3,
10-3, 10-4, 10-4,
10-6, 10-7