ENGINE
3-55
10 mm
(0.39 in)
VALVE FACE WEAR
Visually inspect each valve face for wear. Replace any valve with
an abnormally worn face. The thickness of the valve face de-
creases as the face wears. Measure the valve face
T
. If it is out of
specification replace the valve with a new one.
"
09900-20102: Vernier calipers
#
Valve face thickness
T
Service Limit: 0.5 mm (0.02 in)
VALVE STEM DEFLECTION
Lift the valve about 10 mm (0.39 in) from the valve seat. Measure
the valve stem deflection in two directions, “X” and “Y”, perpen-
dicular to each other. Position the dial gauge as shown. If the
deflection exceeds the service limit, then determine whether the
valve or the guide should be replaced with a new one.
"
09900-20606: Dial gauge (1/100 mm)
09900-20701: Magnetic stand
#
Valve stem deflection (IN & EX)
Service Limit: 0.35 mm (0.014 in)
VALVE STEM WEAR
Measure the valve stem O.D. using the micrometer. If it is out of
specification, replace the valve with a new one. If the valve stem
O.D. is within specification but the valve stem deflection is not,
replace the valve guide. After replacing the valve or valve guide,
recheck the deflection.
"
09900-20205: Micrometer (0 – 25 mm)
#
Valve stem O.D.
Standard (IN) : 4.965 – 4.980 mm (0.1955 – 0.1961 in)
(EX) : 4.945 – 4.960 mm (0.1947 – 0.1953 in)
NOTE:
If valve guides have to be replaced, refer to the valve guide ser-
vicing steps below.
Summary of Contents for GSF1200 2001
Page 1: ...9 9 5 0 0 3 9 2 0 1 0 1 E GSF1200S GSF1200...
Page 36: ...PERIODIC MAINTENANCE 2 23...
Page 68: ...3 30 ENGINE BOND 1207B should be applied to the following locations The line of BOND...
Page 76: ...3 38 ENGINE Diaphragm spring holder Diaphragm springs 150 N m 15 0 kgf m 108 5 lb ft...
Page 83: ...ENGINE 3 45 24th pin 1st pin...
Page 116: ...3 78 ENGINE...
Page 133: ...ENGINE 3 95 ENGINE LUBRICATION SYSTEM...
Page 134: ...3 96 ENGINE CYLINDER HEAD COOLING SYSTEM CHART...
Page 135: ...ENGINE 3 97 CYLINDER HEAD COOLING SYSTEM...
Page 147: ...FUEL SYSTEM 4 9 I D NO LOCATION Each carburetor has an I D number 1 printed on its body...
Page 302: ...SERVICING INFORMATION 7 31 NOTE...
Page 368: ...Printed in Japan K1 K2...