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Old April 12th, 2019, 07:01 AM   #2
greg737
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Join Date: May 2009

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I saw your earlier post about your EX250 overheating while stationary.

When vehicle engineers put a motorcycle (like the EX250) together they're working within a relatively narrow give-and-take situation that ends up producing a carefully balanced cooling equation. The performance of the bike's coolant pump (how many liters-per-minute it moves) and the size of the radiator is matched to the heat load the engine produces, and the make-or-break balance is most delicate at idle RPMs.

You can't just dial up the idle and expect that the bike can handle it.

Here on the forum it's not uncommon to see somebody getting overheating issues in stop-and-go traffic. In these cases the owner almost always admits that the bike is set to an idle speed that is higher than the Kawasaki Service Manual recommended level.
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