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Coolant constantly coming out of overflow

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My used 2010 crf250r has been dripping coolant out the overflow tube while off and idling (not sure about during the ride but I don't think so) until the coolant level is right at the fins. I'm concerned that this is causing overheating and premature engine wear. I didn't think too much of it and was just refilling it after every-to-every other ride until I noticed that the manual says the level should be just below the neck on the radiator, which it isn't. Any possible fixes, what else to look for, etc would be great. I may just be paranoid because I've had a bike ruin a cylinder due to loss of coolant.

Thanks,

Garrett

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My used 2010 crf250r has been dripping coolant out the overflow tube while off and idling (not sure about during the ride but I don't think so) until the coolant level is right at the fins. I'm concerned that this is causing overheating and premature engine wear. I didn't think too much of it and was just refilling it after every-to-every other ride until I noticed that the manual says the level should be just below the neck on the radiator, which it isn't. Any possible fixes, what else to look for, etc would be great. I may just be paranoid because I've had a bike ruin a cylinder due to loss of coolant.

Thanks,

Garrett

I have no idea, but I wouldn't be riding it until I found out what was wrong, are your radiators bent or warped in any way?

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I have no idea, but I wouldn't be riding it until I found out what was wrong, are your radiators bent or warped in any way?

The left radiator is bent in at the side a little, but I don't think enough to cause a problem

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The left radiator is bent in at the side a little, but I don't think enough to cause a problem

Well it might be the problem, might not, spice it's bent, and when you're not moving it might be overheating due to lack of airflow, if I'm correct you can but coolants with a higher boiling point, that might help, but the old radiators on my 08 crf250r were bent all to hell and I never had a problem, I did replace them with aftermarket oversized rads recently though

Well it might be the problem, might not, spice it's bent, and when you're not moving it might be overheating due to lack of airflow, if I'm correct you can but coolants with a higher boiling point, that might help, but the old radiators on my 08 crf250r were bent all to hell and I never had a problem, I did replace them with aftermarket oversized rads recently though

Since, not spice, damn autocorrect

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Had a 450 that was doing the same thing. It I was a bad water pump bearing/seal. Replaced everything and it has not leaked since.

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09 450 was doing the same, needed a new water pump kit and then all was back to normal.

Ok, are you talking like a new water pump cover and impeller or gaskets, and seals?

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