Technical data

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Date: May 14 , 1 9 8 2
Service
Bulletin
MODELS: ALL
no.s2- 12
Serial nos : ALL Subject: B u ~ c h / N • G • K • S p a r k P lug
Conversion Chart
This conversion chart has been established for the 1980 , 198 1 and
198 2 snowmobiles models . For the older models, this char t can be
used as a g uide . The spark plug carbon ana l ysis remains the best
way to properly identify the right heat range .
,., CAUTION : Severe engine damag e
~ heat range plug is u s ed :
can occur if a wrong
A too "ho t" plug will result in overheating and re-
ho t poi n ts pre-ign i tion , etc .
A
too "cold" plug will r e su lt in fouling (shorting
t h e spark) or m ay create carbon build up which can
heat up r ed-ho t and cause pre-ignition or detonation.
All rights reserved ,c, Bombardier Inc.
<t) *Trademarks of Bombardier Inc.
Litho'dinCanada (BOMBARDIER SNOWMOBILES, SERVIC E 82 -1 2), PAGE 1