Yamaha TMAX XP500F 2015, Service Manual, Page: 116 / 478

PERIODIC MAINTENANCE
3-21
Read side indicator number’s character “c” is
smaller than on the belt side.
Read the small number character “d” on the
handle for Read side “A”.
Belt side “B”
Belt side indicator number’s character “e” is
larger than on the Read side.
Read the large number character “f” on the
handle for the Belt side “B”.
2. Calibrate the tension gauge.
TIP
• Belt tension gauge calibration must be done by
the same person who measure and adjust the
vehicle drive belt. It must be done every time
before each drive belt slack measurement.
• Though indicators are located on both sides of
the tension gauge, calibration should only be
done by read side indicator “a”.
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a. Fully loosen the handle “a”, and set the cali-
bration plate “1”.
b. Turn the handle of the tension gauge until in-
dicator “b” and edge of handle “c” to lap over.
c. Read the read side scale at over lap point and
record it on paper etc.
In this explanation should be read “13.2”.
Its value is “calibration value” of the tension
gauge.
d. Loosen the tension gauge enough until you
can remove the calibration plate without any
force.
TIP
Both small and large characters are printed on
the handle of the actual gauge.
However, the illustrations in this manual are
shown with only one size character to simplify
the illustrations.
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3. Measure the drive belt slack.
NOTICE
ECA14950
A drive belt that is too tight will overload the
engine and other vital parts, and one that is
too loose can skip and damage the swing-
arm or cause an accident. Therefore, keep
the drive belt slack within the specified lim-
its.
TIP
Measure the drive belt slack when the drive belt
is at room temperature, and when the drive belt
is dry.
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a. Stand the vehicle on a level surface.
Tension gauge
90890-03226
A. Read side view