page 38
Release 00 - 03/2018
Engine RS100 - RSC100
Service manual
11.2. Adjusting the air gap and checking the coil
1 - Remove the starter assembly [
6.1].
2 - Make sure that the earth cable faston (6) of the
coil (7) is not oxidized; if it is, disconnect, clean and
remount it, spraying it with a special antioxidant.
3 - Check that the coil earth cable is intact. The
black spark plug cable (8) should not have any
cracks or signs of deterioration or burns which re-
duce its efciency and insulation level.
4 - Slack off the screw (9) and the stud (10) which
secure the coil (7).
At the bottom of the machine to which the engine
is tted, release the safety brake.
Rotate the fan (11) so as to bring the magnetic
inserts next to the poles of the core of the coil.
5 - Insert a 0.35 mm thickness gauge (12) between
the complete fan (11) and the coil poles (7), push
the coil until the poles come in contact with the
thickness gauge and secure screw (9) and stud
(10); with the ywheel locked, the airgap must be
between 0.35 and 0.45 mm.
NOTE: An accurate inspection of the ef-
ciency of a coil can only be carried out in a
laboratory equipped with a oscilloscope.
To make a brief check, proceed as follows:
6 - Disconnect the earth cable faston (6) of the
coi (7).
11. IGNITION
0,35÷0,45 mm
7
7
8
11
10
10
11
9
6
6
12
9
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