Yamaha XN125 2000, Service Manual

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2-4
SPEC
MAINTENANCE SPECIFICATIONS
ENGINE
Cylinder head
Warp limit
Cylinder
Bore size
Out of round limit
Camshaft
Drive system
Cam dimensions
Intake
“A”
“B”
“C”
Exhaust “A”
“B”
“C”
Camshaft runout limit
Cam chain
Cam chain type/No. of links
Rocker arm/rocker armshaft
Rocker arm inside diameter
Rocker shaft outside diameter
Valve,valve seat, valve guide
Valve clearance (cold) IN
EX
Valve dimensions
“A” head diameter IN
EX
“B” face width IN
EX
“C” seat width IN
EX
Stem outside diameter IN
EX
Guide inside diameter IN
EX
Stem-to-guide clearence IN
EX
Stem runout limit
Valve seat width
IN
EX
A
C
B
A
B
C
Face width Seat width
Item Standard Limit
MAINTENANCE SPECIFICATIONS
*[XN150]
••• 0.03 mm
53.700 ~ 53.705 mm [59.500 ~ 59.505mm]* •••
••• 0.05 mm
Chain drive (left) •••
30.811 ~ 30.911 mm 30.711 mm
25.145 ~ 25.245 mm 25.045 mm
5.666 m •••
30.811 ~ 30.911 mm 30.711 mm
25.152 ~ 25.252 mm 25.052 mm
5.659 m •••
••• 0.03 mm
82 RH2005/94 •••
12.000 ~ 12.018 mm 12.030mm
11.981 ~ 11.991 mm 11.950 mm
0.10 ~ 0.14 mm •••
0.16 ~ 0.20 mm •••
26.9 ~ 27.1 mm •••
22.9 ~ 23.1 mm •••
2.687 ~ 3.252 mm •••
2.687 ~ 3.252 mm •••
0.9 ~ 1.1 mm •••
0.9 ~ 1.1 mm 1.6 mm
4.475 ~ 4.490 mm 4.445 mm
4.460 ~ 4.475 mm 4.430 mm
4.500 ~ 4.512 mm 4.542 mm
4.500 ~ 4.512 mm 4.542 mm
0.01 ~ 0.037 mm 0.08 mm
0.025 ~ 0.052 0.10 mm
••• 0.01 mm
0.9 ~ 1.1 mm 1.6 mm
0.9 ~ 1.1 mm 1.6 mm