Coolant boiling out?

[Quick281]

Originally Posted by Gas Man

Did you say the fan was working? should come on around 210-218

with the bike cool, remove the rad cap, start it... watch the temp. Around 160-180 degrees the thermostat should open... then with throttle applied you should see movement in the rad thru the cap opening.

if not, then you must determin if its the t-stat or water pump that has went out.

I will try that tomorrow. I haven't been able to address the issue yet, but I have my morning planned for the bike. Going to change the oil and spend some quality time with the coolant issue.

[Gas Man]

my best advice...

work on one issue at a time.

Otherwise its hard to figure out what is going on and what is wrong or what you THINK fixed it.

[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!