Yamaha WR426F(N), Руководство по эксплуатации для владельца

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ENG
CYLINDER AND PISTON
3. Measure:
●
Ring end gap
Out of specification
→
Replace.
NOTE:
You cannot measure the end gap on the
expander spacer of the oil control ring. If the oil
control ring rails show excessive gap, replace
all three rings.
End gap
Standard Limit
Top
ring
WR426F:
0.20 ~ 0.30 mm
(0.008 ~ 0.012 in)
WR400F:
0.20 ~ 0.35 mm
(0.008 ~ 0.014 in)
WR426F:
0.55 mm
(0.022 in)
WR400F:
0.60 mm
(0.024 in)
2nd
ring
WR426F:
0.35 ~ 0.50 mm
(0.014 ~ 0.020 in)
WR400F:
0.40 ~ 0.55 mm
(0.016 ~ 0.022 in)
WR426F:
0.85 mm
(0.033 in)
WR400F:
0.90 mm
(0.035 in)
Oil
ring
0.20 ~ 0.50 mm
(0.01 ~ 0.02 in)
—
Piston pin
1. Inspect:
●
Piston pin
Blue discoloration/grooves
→
Replace, then inspect the lubrication
system.