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It gets up to 230 to 240 sitting in traffic. Fan comes on but temp doesn't drop. It's not low on collant, any ideas on the problem? Plus already had carbs jetted ans synchronized.
 

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It happened before same problem on my 2008 R1. I removed the thermostat and tested in a hot boil water and never opened up and I new it was the problem. Bought new one and new coolant the problem solved.
 

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It gets up to 230 to 240 sitting in traffic. Fan comes on but temp doesn't drop. It's not low on collant, any ideas on the problem? Plus already had carbs jetted ans synchronized.
On anything that old I would suspect the radiator too. There are ways of checking flow with a temp gun, youtube it.
 
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