I gotta throw my hands in the air here... In chronological order:
Purchased used 4 months ago. Bike has only 10k miles and runs very well. Gradually started running hotter and hotter, and the heat from the frame was getting quite uncomfortable (and unacceptable). No boiling, just HOT.
Fan kicks on and off properly. I can monitor the ECT sensor using my auto obdII tool. Gauge is not glitchy, has one bar at startup at about 80 degrees and steadily rises to 6-7. Highway speeds on a 80's degree day rarely bring it below 6 bars (newer cluster) and the frame heat is unbearable.
I own a 2007 also so I do have something to compare it to, which never runs too hot.
1. I noticed deposits in the reservoir so I did a 3 step flush and new antifreeze. No improvement.
2. Switched to Engine Ice. No change.
3. Replaced cap just because it's easy and cheap. No change.
4. Replaced thermostat. No change.
5. Officially overheated in 90's degrees in traffic. Let it cool and rode it home.
6. Replaced water pump. I thought maybe the impeller wasn't spinning on the shaft. No change. While it was apart I blew through all the hoses, the radiator, and I inspected everything visually very well. No hints of blockage.
Needless to say I'm quite stumped. Any suggestions on what I may be overlooking? Next would be a pressure test and a HC test (to check for hydrocarbons/bad head gasket).
Purchased used 4 months ago. Bike has only 10k miles and runs very well. Gradually started running hotter and hotter, and the heat from the frame was getting quite uncomfortable (and unacceptable). No boiling, just HOT.
Fan kicks on and off properly. I can monitor the ECT sensor using my auto obdII tool. Gauge is not glitchy, has one bar at startup at about 80 degrees and steadily rises to 6-7. Highway speeds on a 80's degree day rarely bring it below 6 bars (newer cluster) and the frame heat is unbearable.
I own a 2007 also so I do have something to compare it to, which never runs too hot.
1. I noticed deposits in the reservoir so I did a 3 step flush and new antifreeze. No improvement.
2. Switched to Engine Ice. No change.
3. Replaced cap just because it's easy and cheap. No change.
4. Replaced thermostat. No change.
5. Officially overheated in 90's degrees in traffic. Let it cool and rode it home.
6. Replaced water pump. I thought maybe the impeller wasn't spinning on the shaft. No change. While it was apart I blew through all the hoses, the radiator, and I inspected everything visually very well. No hints of blockage.
Needless to say I'm quite stumped. Any suggestions on what I may be overlooking? Next would be a pressure test and a HC test (to check for hydrocarbons/bad head gasket).