Join Date: Apr 2012
Location: 7320 ft. ASL New Mexico, USA
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If I were to guess, I'd say it's likely due to low coolant level in the system. First, check that your coolant recovery tank has the correct level of coolant in it. Second, remove the radiator cap (with the engine cold!) & check that the coolant level is full to the bottom edge of the radiator filler neck. The radiator is the highest point in the cooling system, so if there is an air pocket in the system it will be at the top of the radiator. If you don't find that the coolant is low, it's certainly a possibility that your coolant temp sensor is faulty.
Last edited by MotoMike; 06-12-2013 at 09:51 AM.