Suzuki FL125S Service Manual page 64

3-27 ENGINE
• Remove the valve stem seal B and valve spring seat C.
ROCKER ARM SHAFT O.D.
Measure the diameter of rocker arm shaft.
% Rocker arm shaft O.D. (IN. & EX.):
Standard: 9.981 – 9.990 mm
& 09900-20205: Micrometer (0 – 25 mm)
ROCKER ARM I.D.
When inspecting the valve rocker arm, the inside diameter of the
valve rocker arm and wear of the camshaft contacting surface
should be checked.
% Rocker arm I.D. (IN. & EX.):
Standard: 10.003 – 10.018 mm
& 09900-20605: Dial calipers
CYLINDER HEAD DISTORTION
Decarbonize the combustion chamber.
Inspect the gasketed surface of the cylinder head for distortion
with a straightedge and thickness gauge, taking a clearance
reading at several places as indicated. If the largest reading at
any position of the straightedge exceeds the limit, replace the
cylinder head.
% Cylinder head distortion:
Service Limit: 0.05 mm
& 09900-20803: Thickness gauge