Yamaha YBR125 Custom, Руководство по обслуживанию

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ENG
Check and repair
3.Measure:
End clearance
Note:
When measuring the oil ring end clea
ran
ce,do not
m
easur
e
at p
art
in
g slip of cup r
in
g of oil r
in
g
.O
nly
can
measure the end cle
aran
ce of
upper
and
lower
guard
rails. If the clearance is too large, replace all the
rings. three
End clearance:
1st ring:0.15 0.30 mm
Using limitation:0.4 mm
2nd ring:0.30 0.45 mm
Using limitation:0.55 mm
Oil ring:0.2~0.7mm
3.M easure: E n d clearance C rankshaft 1.C heck: R u nout toler ance of cr ank
2.C heck: S id e clearance of big end Exceeding lim itationR eplace m ent Ў ъ
E nd clearance: 1string:0.15 Ў « 0.30 m m U sing lim itatio n:0.4 m m 2ndrin g:0.30 Ў «0.45 mm U sing lim itatio n:0.55 mm O ilrin g:0.2~ 0.7 m m Runout tole rance lim itation of crank: 0.03 mm
4 29-
Exceeding lim itationR eplacement Ў ъ N ote : W he n m easurin g the oil rin g end clearance,do not m easu re at par ting slip of cup ring o f oil ring.O nly can m easu re the e nd clearan ce of uppe r and low e r guard rails . If the cl earance i s too large, replace all the rings. three
N ote : R otate the cra nkshaft gr adually to m easure S tandard side clearance: 0.15 Ў «0 .45 m m U sin g lim itation: 0.8 m m
C h eck an d repair E N G
Crankshaft
1.Check:
Runout tolerance of crank
Runout tolerance limitation of crank:
0.03 mm
Exceeding limitation → Replacement
Note:
Rotate the crankshaft gradually to measure
2.Check:
Side clearance of big end
Standard side clearance:
0.15 0.45 mm
Using limitation:
0.8 mm
Exceeding limitation → Replacement
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