Maintenance & Technical > KX500 Original

over-heating?

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ebers17:
I went riding today, snow on the ground and probably about 35 degrees out.  I used the clutch quite a bit with alot of wheel spin the whole time, and about a half-hour in i lost a ton of coolant out of the over-flow tube.  I let the bike sit for ten minutes and put a little water in and was able to get out.  Everything seems to be ok.  I'm just curious as to why it might have over-heated with the cold weather.  Is there something i should look at, i was thinking maybe my radiator vents might be a little too smushed so its not getting the air flow it needs?

Paul:
Wow, mine has never puked and I live in the desert  :shock:  I run Engine Ice but have also heard good things about Maxima's Coolanol

TomL:
Might be running too lean due to the denser cold air.

alan:
Just like a car, if the cooling system isn't holding pressure it will boil at a lower temp! I would replace the cap an check th intire cooling system to see if you have any leaks!

Alan

KXcam22:
Ebers17,
  Lots of good points here.  What does your plug look like? Rad cap is a definite thing to check.  My stock cap is a 1.1, KX80 is a 1.2 and I saw that Kaw also makes a 1.3 option cap.  Bike will get leaner in snow, but mine doesn't puke when riding in snow, only when I "clutch & first gear it" for a long time in ugly stuff.  I run honda car coolant. Cheap and very aluminum friendly, supposed to be good.  You could also check your retaining nut on the waterpump impeller.  There was a link around last year from a similar problem and the water pump impeller was loose.  Hope this helps. Cam.

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