450 overflow bottle?
Posted February 26, 2007 - 01:13 PM
Posted February 26, 2007 - 01:37 PM
Use fresh coolant straight into the rad to fill.
Ideally you should get your jetting perfect and use engine ice. I haven't overheated once since then:applause:
Posted February 26, 2007 - 03:19 PM
Posted February 26, 2007 - 08:00 PM
I have an 04 wr450, yesterday when I was riding it it over heated on me a few times! after I washed my bike I noticed that the over flow tank is full, and my radiator is low. my question is do I sifon the coolant out of the overflow back to the radiator?
If the fluid is not automatically drawn back into the radiators as the bike cools, then you do not have a sealed coolant system. There's an air leak somewhere that preventing a "vacuum" (low pressure) from forming and drawing the fluid back into the radiators as the engine cools. Look for a leak somewhere.
Posted February 27, 2007 - 01:19 AM
Posted February 27, 2007 - 05:20 AM
I'm no mechanic, but can only offer some advice which may relate to this situation. Many years ago I had a Kawasaki GPZ600 which kept overheating and boiling up. after changing the rad cap and checking for leaks I was given some news I really didn't want. That it may be the head gasket. It was leaking, pressurising the coolant system with spent gas’s.
Once the offending item was replaced the problem was sorted. Just a thought, hope it helps.