Coolant Level
The engine coolant level is controlled by the recovery system. The recovery system components are:
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Coolant bottle/overflow tank
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Pressure cap
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Connecting hoses
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In-bottle Thermostat (650, 850, 9R and 850 Boost models only)
Always maintain the coolant level at or slightly above the FULL COLD mark on the coolant bottle (when the engine is cold).
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Stop the engine.
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Open the right side panel.
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View the coolant level in the coolant bottle. Add coolant as needed.
NOTICE
Operating the snowmobile with insufficient coolant will result in overheating and serious engine damage. Always maintain the coolant level as recommended.