Yamaha SR400 2014 Service Manual

CHAIN DRIVE4-54NOTICEECA2RD1006This vehicle has a drive chain with small rub-ber O-rings “1” between the drive chain sideplates. Steam cleaning, high-pressure wash-ing, certain solvents, and the use of a coarsebrush can damage these O-rings.▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲3. Check:• O-ring “1”Damage  Replace the drive chain.• Drive chain roller “2”Damage/wear  Replace the drive chain.• Drive chain side plate “3”Damage/wear  Replace the drive chain.Cracks  Replace the drive chain.4. Lubricate:• Drive chainEAS23460CHECKING THE DRIVE SPROCKET1. Check:• Drive sprocketMore than 1/4 tooth “a” wear  Replace thedrive chain, drive sprocket, and rear wheelsprocket as a set.Bent teeth  Replace the drive chain, drivesprocket, and rear wheel sprocket as a set.EAS23470CHECKING THE REAR WHEEL SPROCKETRefer to “CHECKING AND REPLACING THEREAR WHEEL SPROCKET” on page 4-15EAS23480CHECKING THE REAR WHEEL DRIVE HUBRefer to “CHECKING THE REAR WHEELDRIVE HUB” on page 4-14EAS23490INSTALLING THE DRIVE CHAIN1. Lubricate:• Drive chain2. Install:• Drive chain• Drive sprocket coverTIPInstall the drive chain to the drive sprocket.3. Install:• SwingarmRefer to “REAR SHOCK ABSORBER AS-SEMBLY AND SWINGARM” on page 4-48.• REAR WHEELRefer to “REAR WHEEL” on page 4-11.Recommended lubricantChain lubricant suitable forO-ring chainsb. Correct1. Drive chain roller2. Drive sprocketRecommended lubricantChain lubricant suitable forO-ring chainsb1a2