Replacement Of Spark Plugs - Rotax 912 iSc Maintenance Manual

14.2) Replacement of spark plugs

See
General note
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.
NOTE:
Renewal intervals
Ensure that the following spark plugs corresponding to engine type are
Special tool
employed and that the correct spark plug socket is used:
912 iSc
912 iSc
TNr. XXXXXX
TNr. XXXXXX
14.2.1) Remove the spark plugs
Remove the spark plugs and store them according to cylinder and posi-
Remove
tion. Always replace both spark plugs of a cylinder and do not inter-
change spark plugs between cylinders.
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
Fig. 26.
Use of incorrect spark plugs can result in ignition
NOTICE
WARNUNG
problems and pre-ignition and consequent engine
damage. See chapt. 05-50-00 section: 3.11).
Operation with leaded fuels (e.g. AVGAS 100LL) can result in
increased wear of the spark plugs. Reduce renewal intervals
accordingly.
Engine Part no.
Part no.
Designation
16 mm (0.63 in)
16 mm (0.63 in)
Designation
FUSE BOX
12-20-00
Size of socket
page 49
January 01/2012