2-32 PERIODIC MAINTENANCE
Drive Chain Lubrication Condition Inspection
If a special lubricant is not available, a heavy oil such as
SAE 90 is preferred to a lighter oil because it will stay on
the chain longer and provide better lubrication.
If the chain appears especially dirty, clean it before lubri-
The O-rings between the side plates seal in the lu-
bricant between the pin and the bushing. To avoid
damaging the O-rings and resultant loss of lubri-
cant, observe the following rules.
Use only kerosene or diesel oil for cleaning of the
O-ring of the drive chain.
Any other cleaning solution such as gasoline
or trichloroethylene will cause deterioration and
swelling of the O-ring.
Immediately blow the chain dry with compressed air
Complete cleaning and drying the chain within 10
Apply oil to the sides of the rollers so that oil will penetrate
to the rollers and bushings. Apply the oil to the O-rings so
that the O-rings will be coated with oil.
Wipe off any excess oil.
Oil Applied Areas [A]
Drive Chain Slack Inspection
Check the slack with the motorcycle setting on its side
Clean the chain if it is dirty, and lubricate it if it appears
Check the wheel alignment (see Wheel Alignment Inspec-
tion in this chapter).
Rotate the rear wheel to find the position where the chain
Measure the vertical movement (chain slack) [A] midway
between the sprockets.
If the chain slack exceeds the standard, adjust it.
Standard: 30 ∼ 35 mm (1.2 ∼ 1.4 in.)