74-00-00
page 12
May 01/2007
Effectivity 912/914 Series
Edition 1 / Rev. 0
d02624
BRP-Rotax
Maintenance Manual
3.3) Spark plugs
See Figs. 74-6 and 74-7.
- Inspection of the resistance spark plugs:
- check electrode gap, dimension (SP01), see 74-00-00 sec. 4.
- check heat range, see 71-00-00 sec. 3.4.
See the latest Maintenance Manual "Line Maintenance“ for the respective
engine type.
3.4) Spark plug connectors and ignition cables
See Fig. 74-7.
- Carry out visual inspection of resistance spark plug connectors (1) for
corrosion and damage, replace if necessary.
Check tight fit of resistance spark plug connectors on the spark plugs as
shown in the maintenance overview. Assure security of the spark plug
connector. Resistance spark plug connectors which are seated too loosely
must be replaced.
- Check minimum pull-off force of 30 N (265 in.lb).
- Check screw connection with the ignition cable (2) and the tie wrap clip (3).
If there is visible damage, replace spark plug connector.
- Check correct connection of the ignition cables (2) against the wiring
diagram. See 74-00-00 sec. 3.13.
The cable ends are equipped with identification rings (4). The ignition cables
for the bottom spark plugs are protected by a glass fiber/silicone protection
hose (5) All ignition cables are covered by a protection hose (6) — replace
if there is visible damage.
For measurement values of the spark plug connectors, see 74-00-00 sec.
3.13
00086
SP01
Fig. 74-6
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