Join Date: Jul 2012
Location: Granbury, Tx, USA
2006 temp question
Changed the coolant, used BMW antifreeze at 50/50 mix.
I am pretty sure all the air is purged, left tank is full when I pull the cap at ambient temp.
Overflow tank is full to prescribed level.
Prior to coolant change the bike ran at 48% mark on the bar graph, and when stopped would rise to some other point, but cool rapidly to the "normal" point as soon as we had forward motion.
New condition is the bike runs at 51% of the bar graph, and temp rises when stopped as we'd expect, but cool down once we start moving is very slow.
Doing an IR scan after a ride shows both left and right radiators at the same temp +/- 5 degrees, which is normal.
I'm thinking deteriorated radiator cap. What say you all?