GENERAL INFORMATION
1-9
CYLINDER HEAD/VALVES SPECIFICATIONS
Unit: mm (in)
CLUTCH/STARTER CLUTCH/GEARSHIFT LINKAGE SPECIFICATIONS
Unit: mm (in)
ITEM STANDARD SERVICE LIMIT
Cylinder compression 1,304 kPa (13.3 kgf/cm
2
, 189 psi)
at 350 min
-1
(rpm)
–
Valve clearance IN 0.20 ± 0.03 (0.008 ± 0.001) –
EX 0.28 ± 0.03 (0.011 ± 0.001) –
Camshaft Cam lobe height IN 34.38 – 34.62 (1.354 – 1.363) 34.36 (1.353)
EX 33.86 – 34.10 (1.333 – 1.343) 33.84 (1.332)
Runout – 0.05 (0.002)
Oil clearance 0.020 – 0.062 (0.0008 – 0.0024) 0.10 (0.004)
Valve lifter Valve lifter O.D. 25.978 – 25.993 (1.0228 – 1.0233) 25.97 (1.022)
Valve lifter bore I.D. 26.010 – 26.026 (1.0240 – 1.0246) 26.04 (1.025)
Valve,
valve guide
Valve stem O.D. IN 3.975 – 3.990 (0.1565 – 0.1571) 3.965 (0.1561)
EX 3.965 – 3.980 (0.1561 – 0.1567) 3.955 (0.1557)
Valve guide I.D. 4.000 – 4.012 (0.1575 – 0.1580) 4.04 (0.159)
Stem-to-guide clearance IN 0.010 – 0.037 (0.0004 – 0.0015) 0.075 (0.0030)
EX 0.020 – 0.047 (0.0008 – 0.0019) 0.085 (0.0033)
Valve guide projection
above cylinder head
IN 17.1 – 17.4 (0.67 – 0.69) –
EX 13.3 – 13.6 (0.52 – 0.54) –
Valve seat width 0.90 – 1.10 (0.035 – 0.043) 1.5 (0.06)
Valve spring free length IN 40.19 (1.582) 39.4 (1.55)
EX 39.76 (1.565) 39.0 (1.54)
Cylinder head warpage – 0.10 (0.004)
ITEM STANDARD SERVICE LIMIT
Clutch lever freeplay 10 – 20 (3/8 – 13/16) –
Clutch Spring free length 48.2 (1.90) 47.2 (1.86)
Disc thickness 2.92 – 3.08 (0.115 – 0.121) 2.6 (0.10)
Plate warpage – 0.30 (0.012)
Clutch outer guide I.D. 24.993 – 25.003 (0.9840 – 0.9844) 25.013 (0.9848)
O.D. 34.996 – 35.004 (1.3778 – 1.3781) 34.986 (1.3774)
Primary driven gear I.D. 41.000 – 41.016 (1.6142 – 1.6148) 41.026 (1.6152)
Oil pump drive sprocket
guide
I.D. 25.000 – 25.021 (0.9843 – 0.9851) 25.031 (0.9855)
O.D. 34.950 – 34.975 (1.3760 – 1.3770) 34.940 (1.3756)
Oil pump drive sprocket I.D. 35.025 – 35.145 (1.3789 – 1.3837) 35.155 (1.3841)
Mainshaft O.D. at clutch outer guide 24.980 – 24.990 (0.9835 – 0.9839) 24.960 (0.9827)
Mainshaft O.D. at oil pump drive sprocket guide 24.980 – 24.990 (0.9835 – 0.9839) 24.960 (0.9827)
Starter idle gear Gear I.D. 10.013 – 10.035 (0.3942 – 0.3951) 10.05 (0.396)
Shaft O.D. 9.991 – 10.000 (0.3933 – 0.3937) 9.98 (0.393)
Starter driven gear boss O.D. 45.657 – 45.673 (1.7975 – 1.7981) 45.642 (1.7969)
Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
email: info@motomatrix.co.uk