Originally Posted by joevano
This morning at around 70 degress, as I sat at a light, the bike got close to the red on the temp guage. Coolant is full but don't know any other history since I just got it. 12K on the odometer. Any advice or is that normal?
BTW, '03 K12RS
Let's start with a qualified "sorta normal" answer.
When running down the road, the temp. gauge should be just above the center white line(summer) and just below it in winter.
They do get warm when sitting at a light, but generally not at 70° and that depends on how long and what you were doing before you got to the stoplight.
Have you let it get hot enough to run both the fans?? Start it in the driveway and let it run long enough to start the fans, note the temp. when the fans start(should be just below the first red line) and how fast they pull the temp down to where the fans shut off. And that the fans are blowing out a good stream of hot air from BOTH grills
When the bike is cool check the coolant level in the left radiator, it should be full. Looking down, just in front of the left side plastic and you will see the radiator cap on the left radiator. Add distilled water to top off. 50/50 anti-freeze if you got it.
Lastly, these bike are known for radiator caps failing. If the bike tends to warm up very fast or runs slightly in the red, replace the cap before doing anything else.
ps. If you never had the complete plastic off your bike, check over on www.gunsmoke.com
,click-on "k1200rs home".The directions are for a '98KRS, but close enough for government work.