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Item standard limit
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Valve diam. IN. 22.4
EX. 20.0
Valve clearance (when cold) IN.EX.
Valve guide to valve stem
clearance
Valve stem deflection Valve guide l.D.
IN.
EX.
IN. & EX. IN. & EX.
0.35
Valve stem O.D. IN.
EX.
Valve stem runout IN. & EX.
Valve head thickness IN. & EX.
Valve stem end length IN. & EX.
Valve seat width IN. & EX.
Valve head radial runout IN. & EX.
0.05
0.5
2.7
0.03
Valve spring free
INNER 34.0
length IN.
EX.
OUTER INNER OUTER
38.3
32.6
37.3
Valve spring tension
IN.
EX.
INNER OUTER INNER OUTER
6.5-7.5 kg
at length 28.6 mm
8.8-10.2 kg
at length 31.6 mm
CAMSHAFT + CYLINDER HEAD
ITEM
Cam height IN.
EX.
Unit: mm
Camshaft journal oil clearance IN. & EX. 0.032 -0.066 0.1 50
Camshaft journal holder l.D. IN. & EX. 22.01 2 -22.025
Camshaft journal 0.D.
IN. & EX. 21.959-21.980
Camshaft runout IN. & EX. Cam chain pin (at arrow " 3")
Rocker arm l.D.
0.1 0
EX.
Rocker arm shaft O.D. IN. & EX. Cylinder head distortion
0.20
Asterisk mark (*) indicates the new GSF400VV model specifications.
GSF400VV ('97-MODEL) 11-4
|
CYLINDER + PISTON + PISTON RING Unit: mm
| ITEM | STANDARD | LIMIT 200 kPa (2 kg/cm2) | |
| Compression pressure | |||
| Compression pressure difference | |||
| Piston to cylinder clearance | 0.050-0.060 | 0.120 | |
| Cylinder bore | 56.000-56.015 | 56.080 | |
| Piston diam. | 55.945 -55.960 Measure at 10 mm from the skirt end. | 55.880 | |
| Cylinder distortion | 0.20 | ||
| Piston ring free end gap | 1st R 2nd RN | Approx. 5.6 Approx. 5.9 | 4.5 4. 7 |
| Piston ring end gap | 1st | 0.15 -0.30 | 0.5 |
| 2nd | 0.30-0.45 | 0.5 | |
| 1st 2nd | |||
| Piston ring groove width | 1st | 0.81 -0.83 | |
| 2nd | 0.81 -0.83 | ||
| Oil | 1.51-1.53 | ||
| Piston ring thickness | 1st | 0.77 -0.79 | |
| 2nd | 0. 77 -0.79 | ||
| Piston pin bore | 16.002 -16.008 | 16.030 | |
| Piston pin O.D. | 15.995 -16.000 | 15.980 |
CONROD + CRANKSHAFT Unit: mm
| ITEM | STANDARD | LIMIT | |||
| Conrod small end l.D. | 16.010-16.018 | 16.040 | |||
| Conrod big end side clearance | 0. 10-0.20 | 0.30 | |||
| Conrod big end width | 16.95-17.00 | -- | |||
| Crank pin width | 17. 10-17.15 | -- | |||
| Conrod big end oil clearance | 0.024-0.048 | 0.080 | |||
| Crank pin 0.D. | 29.976 -30.000 | -- | |||
| Crankshaft journal oil clearance | 0.01 2 -0.036 | 0.080 | |||
| Crankshaft journal O.D. | 31.976 -32.000 | -- | |||
| Crankshaft thrust bearing thickness | Left side I | 2.350-2.500 | -- | ||
| Right side I | 2.425 -2.450 | - | - | ||
| Crankshaft thrust clearance | 0.045 -0.100 | -- | |||
| Crankshaft runout | -- | 0.05 | |||
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CLUTCH Unit: mm
| ITEM | STANDARD | LIMIT |
| Clutch lever play | 10-15 | -- |
| Clutch release screw | % -112 turn back | -- |
| Drive plate thickness | 2.90-3.10 | 2.60 |
| Drive plate claw width | 11.8-12.0 | 1 1.0 |
| Driven plate distortion | -- | 0.10 |
| Clutch spring free length | -- | 31.0 |
THERMOSTAT + RADIATOR + FAN
| ITEM | STANDARD | LIMIT | ||
| Thermostat valve opening temperature | 74.5 -78.5 °C (166.1-173.3°F) | -- | ||
| Thermostat valve lift | Over 7 mm at 90°C (194°F) | -- | ||
| Radiator cap valve opening pressure | 110 kPa (1.1 kg/cm2) | -- | ||
| Cooling fan thermo- switch operating temperature | ON | Approx. 95°C (203°F) | -- | |
| OFF | Approx. 88°C (190.4°F) | - | - | |
| Water thermo-switch operating temperature | ON | Approx. 117°C (243°F) | - | - |
| OFF | Approx. 1 10°C (230°F) | - | - |
|
Unit: mm Except ratio
|
| ITEM | STANDARD | LIMIT | ||
| Primary reduction ratio | 1.954 (86/44) 3.363 (37/1 1) | |||
| Final reduction ratio | ||||
| Gear ratios | Low | |||
| 2nd | 2.307 (30/13) | |||
| 3rd | 1.750 (28/16) | |||
| 4th | 1.437 (23/1 6) | |||
| 5th | 1.250 (30/24) | |||
| Top | 1.136 (25/22) | |||
| Shift fork to groove clearance | No.1, No.2 & No.3 | 0.10-0.30 | 0.50 | |
| Shift fork groove width | No.1, No.2 & No.3 | 5.5 -5.6 | ||
| Shift fork thickness | No.1, No.2 & No.3 | 5.3 -5.4 | ||
| Countershaft length (Low to 2nd) | 1 13.1-113.2 | |||
| Drive chain | Type D.l.D.: DID525Vs | |||
| 319.4 | ||||
| Drive chain slack | ||||
| Gearshift lever height |