Pre-Heat Switch - BOMBARDIER Ski-Doo MX Z X 440 2004 Operator's Manual

62) Pre-Heat Switch

Racing Application Only
NOTE: This switch is disabled (not operative) on vehicles modified for
warranty validation. To run engine with 91 octane number fuel, this
switch must be disabled.
A33E0SA
1. Button depressed: Pre-heat timing curve
2. Button released: 108 + Octane timing curve
After starting the engine, push and hold the pre-heat switch button
in order to pre-heat the tuned pipe. Release pre-heat switch button
once the tuned is pre-heated.
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