SV200 R200
4/2007© by GLOBAL GARDEN PRODUCTS
52 To check the wear in the piston ring housings, fit
a new ring and measure the residual space with
a feeler gauge (49). The piston must be replaced
if it is greater than 0.1 mm in the two compres-
sion ring housings.
53 Use a screwdriver to remove the clamping ring
(50) and remove the gudgeon pin (51) from the
piston (44).
54 Check the diameter of the gudgeon pin (51) in
several places and replace it if it is less than
17.956 mm, even at a single point.
55 Check the diameters of the gudgeon pin hous-
ings (A) on the piston (44) and replace the piston
if they are more than 18.1 mm, even at a single
point.
56 Fit the cap (41) to the connecting rod (42) and
check the diameter from the gudgeon pin side
and the crank side; replace the connecting rod
if the values are greater than:
B = 18.1 mm on the gudgeon pin side;
C = 30.15 mm on the crank side.
57 Dismantle the engine shaft (52) and check the
diameter of the manifolds on both the flywheel
side and the outlet side; replace the shaft if they
are less than the following, even in a single
case:
– 24.88 mm (flywheel side);
– 24.88 mm (outlet side).
NOTE - In the case of seizing, the manifolds can
be polished with fine emery cloth, only removing
foreign matter and checking that the final size
remains within the aforementioned limit.
6.10.1
ENGINE BLOCK – Overhauling internal parts
5 / 7
SERVICE MANUAL
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from
2007 to ••••
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50
51
42
41
A
51
44
B
C
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