Brake Fluid Replacement; Drive Chain Slack Check - Yamaha DT125R Owner's Manual

Brake fluid replacement

The brake fluid should be replaced
only by trained Yamaha service per-
sonnel. Have the Yamaha dealer
replace the following components
during periodic maintenance or when
they are damaged or leaking:
8 oil seals (every two years)
8 brake hoses (every four years)
PERIODIC MAINTENANCE AND MINOR REPAIR
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a. Chain slack

Drive chain slack check

NOTE:
Spin the wheel several times and find
the tightest position of the chain.
Check and/or adjust the chain slack
while it's in this tightest position.
To check the chain slack the motor-
cycle must be held straight up with
both wheels on the ground and with-
out rider. Check the slack at the posi-
tion shown in the illustration. Normal
slack is approximately 25 ~ 40 mm. If
the slack exceeds 40 mm, adjust it.
a
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6-25
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