August 27th, 2010, 02:24 PM
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#3 |
Moderator
Joined: Oct 2002 From: Sunland, CA Posts: 3,117 Thanks: 20 I Ride: | Re: Coolant Overflow
I might add.........
As part of a pre ride inspection, one should always remove the radiator cap, then open the bleed screw to make sure there is no trapped air.
As Ned says the coolant should just be covering the tubes in the radiator when cold, or it will push coolant out.
I've also had radiator caps go bad on me as well, so that is worth having the local radiator shop test.
Are you running the stock louvers? Some of the aftermarket radiator guards really restrict air flow.
What kind of coolant are you running?
I solved this problem on my 04 550 by going to Evans coolant, since I could not install a fan on my 04. When running the Evans your bike will not boil over, as Evans does not boil until 370* at zero psi, and 400 under pressure. The only problem with the Evans NPG-R is that it is not recommended for temps below freezing. I have run mine in temps in the low teens with no problems, you just have to make sure that you warm the motor up good first. Evans is not like water, it will actually shrink in volume as the temperature decreases.
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