Raider-Classic 150 (Oil-cooled&Internal Gearbox): Service Manual (single/ double-seat) EEC Version;3.0 Feb..2005
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If the wear is too severe and cannot be reworked, a new cylinder should be installed.
3.2 Crank Connecting Rod Mechanism
3.2.1 Piston Set
Inspection and Service of Piston Pin
a) Insert the piston pin horizontally into the pinhole of the piston, and inspect the clearance
between the piston and piston pin. If the free play is too much, the worn condition of the
piston pin and pinhole of the piston must be inspected respectively.
b) Measure the external diameter of the piston pin. If the result is less than the service limit, it
should be replaced.
c) After replacement, the clearance between the piston pin and pinhole must comply with the
requirement.
d) Measure the inner diameter of the piston pin. If the result is more than the service limit, it
should be replaced.
e) After replacement, the clearance between the pinhole of the piston and the piston pin must
comply with the requirement.
3.2.2 Inspection and Service of Piston Rings
a) Inspect if there is a flaw, serious wear, or serious conglutination on the piston ring; if there is,
it should be replaced.
b) If the lateral clearance and notch clearance of the piston ring are too large or too small,
malfunction may be caused. So it must be measured.
c) Measure the clearance of the piston ring in the piston ring groove. This clearance is the piston
ring’s lateral clearance.
Cylinder bore
57.4mm
Cylindricality 0.05mm
Circularity 0.05mm
Service limit
0.02 mm
Service limit
14.96 mm
Service limit
15.04 mm
First ring
0.09 mm
Second ring
0.09 mm
Summary of Contents for Raider-Classic 150
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