Drive Chain And Sprockets; Drive Chain Slack; Crankcase Driveshaft Oil Seal; Drive Chain Adjustment - Suzuki RM-Z250 Owner's Service Manual

DRIVE CHAIN AND SPROCKETS

DRIVE CHAIN SLACK

• Place the motorcycle on a block to lift the rear wheel off the
ground.
• Inspect the drive chain slack at the middle point between the
drive chain buffer and rear sprocket.
! Drive chain slack: 35 – 45 mm (1.4 – 1.8 in)

CRANKCASE DRIVESHAFT OIL SEAL

• Inspect the oil seal for abnormality (dust, stone or foreign
marerials).
• If necessary, replace it with a new one.

DRIVE CHAIN ADJUSTMENT

• Loosen the axle nut 1.
• Loosen the lock-nuts 2 and adjust the drive chain slack to the
specification by turning the adjusters 3. Make sure that the
right and left adjuster plates 4 are at the same position on
scales 5.
• With the adjusters 3 held in position, tighten the lock-nuts 2.
• Push the adjuster plates 4 to the adjusters 3 and tighten the
axle nut 1.
" Axle nut: 90 N·m (9.0 kgf-m, 65.0 lb-ft)
• Tighten the lock-nut 2.

20TH PITCH LENGTH

Pull the drive chain tight and measure the 20th pitch length.
! Drive chain 20th pitch length
Service limit: 323.8 mm (12.75 in)
PERIODIC MAINTENANCE
35 – 45 mm (1.4 – 1.8 in)
2-28