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4.4 Cleanfire Fuel Injection 9923311 - 2010-2012 PRO-RIDE RUSH/Switchback/RMK Service Manual © 2011 Polaris Sales Inc. ENGINE PROTECTION FEATURES Engine Temperature RPM Limit The ECU will illuminate the instrument cluster engine hot NOTE: * = Only minimum (idle) and maximum (WOT) The driver must take immediate action to cool the engine When the engine is cool, check the coolant level in the If the snowmobile must be operated while the indicator Continued engine operation with the engine hot LED The ECU will also register and accumulate (count the Engine Overheating Troubleshooting If the hot lamp is illuminated or flashing with the engine Engine Temperature Limit Modes MODEL HOT
LAMP MODE THRESHOLD * 600/800 DC-CFI 2/4 Hot Lamp ON Hot Lamp Illuminates: Idle = 230° F/110° C WOT = 185° F/85° C Hot Lamp Hot Lamp Flashes RPM Misfire at: Idle = 239° F/115° C WOT = 208° F/98° C CAUSE
OF
OVERHEAT SOLUTION Riding in poor conditions Ride snowmobile on good Low coolant level Allow engine to cool. Refill Incorrect coolant/mix ratio Use 60/40 (propylene glycol/ Air in cooling system Bleed cooling system Heat exchangers/hoses Inspect components for Thermostat malfunctioning Inspect thermostat for proper Water pump malfunctioning Inspect coolant flow Cylinder base gaskets/o-rings Pressure test cooling system. Snow flap damaged or Inspect rear snow flap Vehicle use Verify vehicle is not overloaded Track condition/tension Verify track is not missing lugs. |