SV200 R200
4/2007© by GLOBAL GARDEN PRODUCTS
13 Use a 0.10 mm feeler gauge (13) to check the
gap between the rocker arm and the tip of the
valve stem; the gauge should pass between
without forcing and without a further gap.
14 The gap is adjusted by slackening off the lock
nut (14) and suitably adjusting the register nut
(15) until the above condition is reached.
15 Following adjustment, check that the pushrods
(16) are properly inserted in the rocker arm
housings (17) and always fully tighten the nut
(14).
16 When reassembling check the condition of the
gasket (18) under the cover (11) and replace it if
it is damaged.
C) Dismantling and cleaning the cylinder head
21 Remove the starting system [ 6.2.A
].
22 Remove the tank [
6.1.A].
23 Remove the conveyor (20).
24 Remove the carburettor [
6.4.A].
25 Remove the exhaust muffler [
6.8.A].
26 Remove the spark plug and the cover (21) fixed
by four screws (22).
27 Unscrew the four screws (23) that fix the cylin-
der head (24).
28 Remove the gasket (25) and clean the cylinder
head (26) and cylinder surfaces (24).
29 Carefully clean the inside of the combustion
chamber (27) and remove possible deposits
from the valve seats.
6.9.1
ENGINE BLOCK – External operations
2 / 7
SERVICE MANUAL
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