SV200 R200
4/2007© by GLOBAL GARDEN PRODUCTS
45 Remove the camshaft [ 6.10.B].
46 Dismantle the connecting rod (42) cap (41), fixed
with two screws (43).
47 Push the connecting rod (42) so as to cause the
piston (44) to come out of the cylinder (45).
48 Use the special expanding tool (46) to remove
the two compression rings and the oil scraper
ring from the piston (44).
49 Carefully remove all carbon deposits from the
compression rings, the inside of the cylinder
and the piston head.
50 To check the wear in the compression rings,
insert them one at a time into the cylinder (45)
by about 10-15 mm and measure the gap
between the two ends with a feeler gauge (47);
the rings must be replaced if the gap is more
than 0.85 mm.
NOTE - If a gap of more than 0.6 mm is meas-
ured with new rings it means that the cylinder is
worn beyond the acceptable limits and must be
replaced. The cylinder must be replaced if it
shows striping due to a seizure.
51 Use a section of an old ring (48) to carefully
clean the inside of the piston (44) ring housings,
ensuring that the oil passage holes are not
blocked.
6.10.1
ENGINE BLOCK – Overhauling internal parts
4 / 7
SERVICE MANUAL
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