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Service data






VALVE + GUIDE Unit: mm (in)

ITEM STANDARD LIMIT
Valve diam. IN. 22.4 (0.88)   --
EX. 20.0 (0.79) --
Valve lift IN. * 6.2 (0.24)   --
EX. * 6.2 (0.24) --
Valve clearance (when cold) IN. * 0.13 -0.18 (0.005 -0.007) --
EX. * 0.20-0.25 (0.008 -0.010) --
Valve guide to valve stem clearance IN. * 0.020-0.047 (0.0008 -0.0019) --
EX. 0.040 -0.067 (0.001 6 -0.0026) --
Valve stem deflection IN. & EX. -- 0.35 (0.014)
Valve guide l.D. IN. & EX. 4.500-4.51 2 (0.1772 -0.1776)   --
Valve stem O.D. IN. * 4.465 -4.480 (0.1758 -0. 1764)   --
EX. 4.445 -4.460 (0.1750-0. 1756)   --
Valve stem runout IN. & EX.   -- 0.05 (0.002)
Valve head thickness IN. & EX. -- 0.5 (0.02)
Valve stem end length IN. & EX.   -- 2.7 (0. 1 1)
Valve seat width IN. & EX. 0.7 -0.9 - (0.03 -0.04)   -
Valve head radial runout IN. & EX.   -- 0.03 (0.001)
Valve spring free length (IN. & EX.) INNER   -- 32.6 (1.28)
OUTER   -- 37.3 (1.47)
Valve spring tension (IN. & EX.)   INNER 6. 5 -7.5 kg (14.3-16.5 lbs) at length 28.6 mm (1.13 in)     --
  OUTER 8.8 -10.2 kg (19.4-22. 5 lbs) at length 31.6 mm (1.24 in)     --

A sterisk mark (*) indicates the new GSF400P model specifications.


 

CAMSHAFT + CYLINDER HEAD Unit: mm (in)

 

ITEM STANDARD LIMIT
Cam height IN. * 32.222 -32.278 (1.2686 -1.2708) * 31.930 (1.2571)
EX. * 32.372 -32.428 (1.2745 -1.2767) * 32.030 (1.2610)
Camshaft journal oil clearance IN. & EX. 0.032 -0.066 (0.0013 -0.0026) 0.1 50 (0.0059)
Camshaft journal holder l.D. IN. & EX. 22.01 2 -22.025 (0.8666-0.8671)   --
Camshaft journal O.D. IN. & EX. 21.959 -21.980 (0.8645 -0.8654) --
Camshaft runout IN. & EX. -- 0.10 (0.004)
Cam chain 20-pitch length   -- (5.63)
Cam chain pin (at arrow " 3") 20 th pin --
Rocker arm l.D. IN. & EX. 12.000 -12.018 (0.4724-0.4731) --
Rocker arm shaft O.D. IN. & EX. 1 1.973-11.984 (0.4714-0.4718)   --
Cylinder head distortion -- 0.20 (0.008)

 

CYLINDER + PISTON + PISTON RING Unit: mm (in)

 

ITEM STANDARD LIMIT
Compression pressure 1000-1450 kPa (10-14.5 kg/cm2) 142-206 psi 800 kPa (8 kg/cm2) 1 14 psi
Compression pressure difference     -- 200 kPa (2 kg/cm2) 28 psi
Piston to cylinder clearance 0.050 -0.060 (0.0020 -0.0024) 0. 120 (0.0047)
Cylinder bore 56.000-56.015 (2.2047 -2.2053) 56.080 (2.2079)
Piston diam. 55.945 -55.960 (2.2026 -2.2031) Measure at 10 mm (0.4 in) from the skirt end. 55.880 (2.2000)
Cylinder distortion   -- 0.20 (0.008)
Piston ring free end gap 1st R Approx. 5.6 4.5 (0.18)
2nd RN Approx. 5.9 4.7 (0.19)
Piston ring end gap 1st 0.1 5 -0.30 (0.006 -0.012) 0.5 (0.02)
2nd 0.30-0.45 (0.01 2 -0.018) 0.5 (0.02)

 

(0.22)

 

(0.23)

 

Asterisk mark (*) indicates the new GSF400P model specifications.


 

ITEM STANDARD LIMIT
Piston ring to groove clearance 1st   -- 0.180 (0.0071)
2nd   -- 0.1 50 (0.0059)
Piston ring groove width 1st 0.81 -0.83 (0.032 -0.033)   --
 
2nd 0.81 -0.83 (0.032 -0.033)   -   -
Oil 1.51-1.53 (0.059 -0.060)   -   -
Piston ring thickness 1st 0.77 -0.79 (0.030-0.031)   --
2nd 0.77 -0.79 (0.030-0.031)   -   -
Piston pin bore 16.002-16.008 16.030
(0.6300-0.6302) (0.6311)
Piston pin O.D. 15.995 -16.000 15.980
(0.6297 -0.6299) (0.6291)

 

CONROD + CRANKSHAFT Unit: mm (in)

ITEM STANDARD LIMIT
Conrod small end l.D. 16.010-16.018 16.040
(0.6303 -0.6306) (0.631 5)
Conrod big end side clearance 0.10-0.20 0.30
(0.004-0.008) (0.01 2)
Conrod big end width 16.95 -17.00 (0.667 -0.669)   --
Crank pin width 17. 10-17.15 (0.673 -0.675)   --
Conrod big end oil clearance 0.024-0.048 0.080
(0.0009 -0.0019) (0.0031)
Crank pin O.D. 29.976 -30.000 (1.1802-1. 1811)   -
Crankshaft journal oil clearance 0.01 2 -0.036 0.080
(0.0005 -0.0014) (0.0031)
Crankshaft journal O.D. 31.976 -32.000 (1.2589 -1.2598)   --
Crankshaft thrust bearing thickness Left side 2.350-2.500 (0.0925 -0.0984)   --
Right side 2.425 -2.450 (0.0955 -0.0965)   -   -
Crankshaft thrust clearance 0.045 -0.100 (0.0018 -0.0039)   --
Crankshaft runout   -- 0.05 (0.002)

 






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