Installation Of Spark Plug - Rotax 915 i A SERIES Maintenance Manual

oily, glossy coating
white with formation
of melt beads

INSTALLATION OF SPARK PLUG

Figure 7.19: Spark plugs
Cleaning
12–20–00
Page 42
December 01 2017
BRP-Rotax
MAINTENANCE MANUAL
Spark plug face
Possibly indicates one or more of the following:
• damaged valve stem seal
• misfiring
• too much oil in combustion chamber
• worm cylinder and piston rings
Possibly indicates one or more of the following:
• mixture too lean
• leaking valves
1 Ground electrode
Rinse off with water in the case of contact with eyes or skin. May be harmful if
Information
2 Head area
m WARNING
Eyes and skin irritation!
swallowed.
Effectivity: 915 i A Series
Edition 0/Rev. 0