Yamaha YZ250FM 2021 Owner's Service Manual

CHASSIS3-33rect the tire position.EAM30244CHECKING AND TIGHTENING THE SPOKES1. Check:• SpokeBend/damage  Replace.Loose  Tighten.Tap the spokes with a screwdriver.TIPA tight spoke will emit a clear, ringing tone; aloose spoke will sound flat.2. Tighten:• Spoke(with a spoke nipple wrench “1”)TIP• Do not give a half turn (180) or more for onetightening.• Make sure that tightening after a break-in isdone until the initial looseness in nipples disap-pears.• Make sure that tightening is done in stages, notat a time.EAM30245CHECKING THE WHEELS1. Check:• WheelDamage/out-of-round  Replace.WARNINGEWA13260Never attempt to make any repairs to thewheel.EAM30246CHECKING THE WHEEL BEARINGS1. Check:• Wheel bearingRefer to “CHECKING THE FRONT WHEEL”on page 4-6 and “CHECKING THE REARWHEEL” on page 4-10.EAM30253CHECKING THE CHASSIS FASTENERSMake sure that all nuts, bolts, and screws areproperly tightened.Refer to “CHASSIS TIGHTENING TORQUES”on page 2-12.EAM30248CHECKING AND LUBRICATING THECABLESThe following procedure applies to all of the in-ner and outer cables.WARNINGEWA13270Damaged outer cable may cause the cable tocorrode and interfere with its movement. Re-place damaged outer cable and inner cablesas soon as possible.a. Bead stopper tightening nutb. Tire valve stemab1Spoke nipple wrench (6–7)90890-01521Spoke nipple wrench (6–7)YM-01521Spoke2.5 N·m (0.25 kgf·m, 1.8 lb·ft)T R..