d02880.fm
MAINTENANCE MANUAL
BRP-Powertrain
Effectivity: 912 Series
Edition 2 / Rev. 0
12-20-00
page 63
October 01/2009
14.2) Inspection and replacement of spark plugs
General note See Fig. 30.
Because of the differing thermal load, particular spark plugs have been
specified for each engine type.
In numerous tests the best possible heat range has been determined to
make sure that the spark plug will burn off deposits but will not overheat.
Renewal intervals NOTES: Operation with leaded fuels (e.g. AVGAS 100LL) can re-
sult in increased wear of the spark plugs. Reduce renewal
intervals accordingly.
Special tool Ensure that the following spark plugs corresponding to engine type are
employed and that the correct spark plug socket is used:
14.2.1) Remove the spark plugs
Remove Remove the spark plugs and store them according to cylinder and posi-
tion. Always replace both spark plugs of a cylinder and do not inter-
change spark plugs between cylinders.
WARNUNG
NOTICE
Use of incorrect spark plugs can result in ignition prob-
lems and pre-ignition and consequent engine damage.
See chap. 05-50-00 section: 3.8).
Engine Part no. Designation Size of socket
912 A/F/UL 897255 DCPR 7E 16 mm (0.63 in)
912 S/ULS 297940 DCPR 8E 16 mm (0.63 in)
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