Polaris 2003 Frontier - Manual (Page 107)

105
MAINTENANCE
General Maintenance
Reverse Kit Maintenance
Always maintain track tension as specified on pages 46 and 50 when a
snowmobile is equipped with reverse.
Allow the engine to reach idle speed before attempting to shift into or
out of reverse.
Improper track tension can cause serious damage to the
snowmobile, which can result in loss of vehicle control and serious
injury or death. Always maintain the track tension as specified.
WARNING
Damage will occur to the chaincase or transmission if shifting is
attempted before the machine has come to a complete stop. Make
sure the snowmobile has completely stopped and the engine has
returned to idle speed before shifting gears.
CAUTION