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Honda CH250 1989 Service Manual page 10

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General Information
Unit: mm lin)
Cylinder He.d
I
I
~
Item
Standard
~
Service limit
Cylinder compression-- - - - - - - - - - -
--+I~
1,300-1,700 kPa 113- 17 kg/cm
2 ,
I--~--
185-242 psil/600 rpm
1
Valve clearance IN
10.10 -0.1410.004-0.0061
- -
EX
10.10-0.1410.004-0.0061
1
Cylinder head warpage
. - -
I
0.05 10.0021
Cam lobe height(i)/N
134.231-34.35111.3477-1.35241
34.18111.34571
IN ICalifornia model)
I
34.231-34.351 11.3477-1.35241
I
34.181 11.34571
EX
34.231-34.351 [1.3477-1.3524i
1 34.181 11.34571
EX ICaliforni. model)
134.231-34.35111.3477-1.35241
134.18111.34571
@lCD
i
Camshaft run out
Camshaft oil clearance A
I
B
I
Camshaft journal 0.0. A
B
I
Camshaft holder 1.0. A
B
1
Valve stem 0.0. IN
I
4.975-4.99010.1 959-0.1 9651
4.9010.1931
EX
I
4.955-4.970 10.1951-0.19571
49010.1931
Valve guide 1.0. IN
I
5000- 5.012 10.1969-0.19731
5.03 10.198!
EX
5.000- 5.012 10.1969 - O. 19731
5.03 10.1 981
Stem-ta-guide clearance IN
I
0.010-0.037 10.0004- 0.00151
0.0810.0031
EX
0.030-0.057 10.0012-0.00231
0.10 10.0041
Valve guide projection above cylinder head IN {hl
I
11.510,451
EX Ihi
I
11.5 10,451
I
h
' j /
~W
::::~~
Valve seat width
1.1 10.041
1.8 10.071
Valve spring free length IN
EX
inner
IN
31.0611.2231
29.511.161
inner
EX
31.0611.2231
29.511.161
outer
IN
40,42 11.5911
38,411.511
outer
EX
40,4211.5911
38.411.511
Rocker arm 1.0. IN
12.000-12.018 10,4725-0.47321
12.1010.4761
EX
12.000-12.01810,4725-0.47321
12.1010.4761
Rocker arm shafIO.D. IN
11.966-11.98410,4711-0,47181
11.91 10.4691
EX
11.966-11.98410.4711-0,47181
11.91 10.4691
e..:.~r a::.n:..:c..:e
L..::0~. 0:.:1 6 - 0.052 (0.0006 - 0.0020)
~
--.J
L-R_o.:.ck.:.e:..r.:.a:..r:..m:..- t:..:o_-r:..:o:..:c:..:ke:cr_a:cr~m~sh~a:cf:..' ..:c:..:1
1-6

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This manual is also suitable for:

Elite 250 1989