Yamaha MTN850-A 2017 Service Manual page 213

Fork seal driver
90890-01442
Adjustable fork seal driver (36–46
mm)
YM-01442
2
1
10.Install:
• Rod puller "1"
• Rod puller attachment (M10) "2"
(onto the damper rod "3")
Rod puller
90890-01437
Universal damping rod bleeding
tool set
YM-A8703
Rod puller attachment (M10 long)
90890-01578
Universal damping rod bleeding
tool set
YM-A8703
11.Fill:
• Front fork leg
(with the specified amount of the recom-
mended fork oil)
Recommended oil
Yamaha Suspension Oil 01
Quantity (left)
458.0 cm³ (15.48 US oz, 16.15
Imp.oz)
Quantity (right)
462.0 cm³ (15.62 US oz, 16.29
Imp.oz)
ECA14230
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.
12.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.
13.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 residual
air.
14.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.
Level (left)
148 mm (5.8 in)
Level (right)
148 mm (5.8 in)
4-68
FRONT FORK