page 60
Release 00 - 03/2018
Engine RS100 - RSC100
Service manual
15. ENGINE BLOCK - Overhauling internal parts
6 - Check the free length of the spring (43) and
replace the spring of it is less than 29,4 mm.
7 - When mounting:
- carefully clean the valve guides and housings of
any foreign body;
- apply a lm of oil on the valve stems before inser-
ting them in their respective housings;
- ensure the proper position of the intake valve and
exhaust valve, which can be notice by the different
sizes (Intake: larger, Exhaust: smaller).
8 - Replace the intake valves and check that the
oil seal (44) is in place.
43
44
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