I just got a 98 zr 600 and it started over heating right away. The person i got it from said they just changed the antifreeze. You think it just needs to be bled or has other issues? The heat exchangers are not getting warm.
Probly just needs to be bled properly. I drained the antifreeze in my wildcat one time and had a hell of a time getting it to pump again. Had to just keep running it a few seconds and then add more antifreeze and the run it again ect. Eventually I got all the air out.
^^^ Really the best way to do it, like said above, is to run it up on a snowbank with the nose in the air take the cap off and then fill it up again. That just get coolant all the way back to the rails and forces all bubbles up to the cap.
If you have tried all of other suggestions and still have no luck, service the water pump. I had a heck of a time trouble shooting a ZRT once and it turned out that the impeller housing was stripped out and was slipping on the shaft.
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