Yamaha R15 2022, Service Manual

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4-69
FRONT FORK
CHAS
e. Install the cap bolt (along with O-ring), and
then finger tighten the cap bolt on the
damper rod by tilting the assembly slightly
downward and pressing collar against
front fork spring.
WARNING
EWA13670
Always use a new cap bolt O-ring.
f. Hold the cap bolt and tighten the locknut to
specification.
10.Fill:
• Front fork leg
(with the specified amount of the recom-
mended fork oil)
NOTICE
• Be sure to use the recommended fork oil.
Other oils may have an adverse effect on
front fork performance.
• When disassembling and assembling the
front fork leg, do not allow any foreign ma-
terial to enter the front fork.
11.After filling the front fork leg, slowly stroke the
damper rod “1” up and down (at least ten
times) to distribute the fork oil.
TIP
Be sure to stroke the damper rod slowly be-
cause the fork oil may spurt out.
12.Before measuring the fork oil level, wait ten
minutes until the oil has settled and the air
bubbles have dispersed.
TIP
Be sure to bleed the front fork leg of any resid-
ual air.
13.Measure:
• Front fork leg oil level “a”
(from the top of the outer tube, with the outer
tube fully compressed and without the fork
spring)
Out of specification
→
Correct.
14.Install:
• Cap bolt
(to the outer tube)
TIP
• Before installing the front fork cap, lubricate
its O-ring with grease.
• Insert the front fork cap bolt into the outer tube,
and make sure that the cap is securely held in
place.
• Temporarily tighten the cap bolt.
• Tighten the cap bolt to the specified torque only
after installing the front fork leg to the vehicle
and tightening the lower bracket pinch bolts.
T
R
.
.
Locknut
17 N·m (1.7 kgf·m, 13 lb·ft)
Recommended oil
Yamaha Suspension Oil 01
Quantity
300.0 cm
3
(10.14 US oz,
10.58 Imp.oz)
Level (left)
100 mm (3.9 in)
BCWF8197E0.book Page 69 Thursday, November 18, 2021 9:18 AM