Final Drive Mechanism
Checking Lubrication State of Drive Chain
●If there is no special lubricant, the priority can be given to the heavy oil (e.g.: SAE 90), not light oil, because the heavy oil
can be attached to the drive chain for longer time with better lubrication effect.
●If the drive chain looks dirty, it must be cleaned before adding the lubricant.
Note
The lubricant of oil seal is sealed between the side plate and
roller. Therefore, in order to avoid damaging the O-ring seal
and cause the lubricant reduction, please comply with the
following rules:
The O-
ring seal of drive chain must be cleaned with kerosene
or diesel oil. If other cleaning solvents (such as gasoline or
trichloro ethylene) are used, the O-ring seal will be corroded
and expanded. After the cleaning is completed, dry the drive
chain with compressed air immediately. Ensure to clean and
dry the drive chain within 10 minutes.
●Apply the lubricant to both sides of chain roller to make it
penetrate into the chain roller and sleeve. Add the lubricant to the
O-ring seal to make the lubricant cover the surface of O-ring seal.
●Wipe off the redundant lubricant.
Part where lubricant is added: [A]
O-ring seal: [B]
Checking Whether Drive Chain is Loose
Note
○Support the motorcycle with a side stand to check whether the
drive chain is loose; or support the motorcycle with a bracket to
check whether the drive chain is loose.
○If there are stains on the drive chain, clean the drive chain and
then add lubricant after it is dry.
●Checking the wheel alignment (see “Checking Wheel Alignment”).
●Rotate the rear wheel to find the position where the drive chain is
tightest.
●Measure the up and down swing (slackness of drive chain) [A] of
chains between front and rear sprockets.
★If the slackness of drive chain exceeds the standard, please adjust
it!
Slackness of Drive Chain
Standard: 10-15mm
2-29
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