Coolant boiling out?

[6doublefive321]

Work on the simple things first, like the radiator cap. If you have a bad cap that doesn't hold pressure, the coolant will boil at a lower temperature.

[Quick281]

I have been to busy to update all of my threads, but this seems to be a case closed. After flushing the coolant system before putting in the Engine Ice, I did a very thorough examination of the cooling system.

As logic should have told me, the right side of the radiator has suffered minimal damage in the previous owner's crash. One of the tabs on the radiator inlet was bent just enough so that the cap could not sit flush. After pulling it back out and putting Engine Ice in everything has been just fine.

Yesterday I pulled over for gas and when I turn the ignition back on I was shocked to see the temp at 228. I turned the bike on to get the coolant flowing again and the temp plummeted back to 210 in less then a minute with some help from the fan. No boiling out or anything.


Picture of the convicted culprit, after being pulled back out a bit with a flat head.

Case closed.

[marko138]

Nice job.

[Quick281]

Originally Posted by marko138

Nice job.

Thanks, put her through mid day traffic today and she didn't drip out anything. I will double check the coolant level before tomorrows ride just to make sure I didn't miss it.

Seems to be solved though.

[Mr Lefty]

SWEET! love simple fixes like that!

[Gas Man]

It is normal for the temp to rise after you turn off the bike. no more water flow = more temp

[Quick281]

Originally Posted by Gas Man

It is normal for the temp to rise after you turn off the bike. no more water flow = more temp

I did know that at the time, but in the past the bike didn't cool itself down at all. I could have worded it better but I was just trying to emphasize how quickly the temp came back down when turned on versus old times.