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Radiator Fluid Change
Posted: 02:06 pm Jun 02 2008
by allinson
It is time to drain my radiator fluid. A couple of questions?
1. Do I drain the radiator and the plug by the impeller?
2. My KTM has a bleeder to get the air out. Does the KDX has one as well?
Posted: 02:28 pm Jun 02 2008
by scheckaet
yep they do have a bleeder to get the air out on top of the head.
Plug by the impeler? Don't remember doing that last time I replaced the fluid.
Posted: 03:12 pm Jun 02 2008
by allinson
I am not sure, but I thought that I seen a drain hole down there?
When you open the bleeder, do you have the bike running?
Posted: 03:14 pm Jun 02 2008
by Indawoods
Yup
Posted: 03:19 pm Jun 02 2008
by allinson
Is that a yuper on both the bleeder while running and the drain hole?
Posted: 05:20 pm Jun 02 2008
by Jeb
I don't open the bleeder while running. After you've poured in coolant to achieve the needed level, slowly open the bleeder and you'll usually hear it make a slight hiss and then it'll start to leak. . .
you'll need to add a little more coolant.
Start it up for the first time with the rad cap off. Rev it (a little) and you'll see air bubbles. After a few minutes the bubbles will cease, put the cap back on.
Posted: 06:07 pm Jun 02 2008
by Indawoods
Yup was to the bleeder on the head. I always crack it when the bike is running. As far as flushing the entire system... I have never had to do it, I have only pulled the lowest hose and drain so I could get the cylinder off without getting coolant in the lower end.