Main Motorcycle: 2011 Sprint GT
Join Date: Jul 2018
Location: Arizona USA
Other Motorcycle: 2015 Harley Streetglide
Summer riding in Arizona
Just trying to up my post count and thought I would share my recent coolant encounter with my Sprint GT. I have read many posts and seems to me there is not one most common problem. I replaced the coolant in early March and when I finished topping off it was at the max level which is where the level remained until just the other day riding in temps since then between 80F and 115F with no issues and the temp gauge always runs around 3 bars from max when it's 100F or more but the fan operates and have never had the flashing bars overheat condition. Rode the other day no different than normal, no gauge issues but did happen to notice while riding that the coolant expansion tank level had rose above the max line approx. 2 inches or so which I had never noticed before but had no other problems during the ride. Parked the bike and later that day after the bike had been sitting had a large trail of coolant (hard to say but maybe a pint or so) that had spit out the overfill tube under the bike. Checked the expansion tank level and was approx. 1 to 2 inches below the min line but not even close to empty. Looked everything over and saw no issues so started the bike and just idled until up to temp, fan operating as usual not over heating and the level in the expansion tank rose to the max line when full warmed up. Checked the engine oil for any signs of contamination but looks normal, I've ordered a new radiator cap as a precaution but I am baffled as to how after so many months does it seem like the coolant was overfilled. Also wanted to ask if when the bike is warm and turned off does other people's cooling fans continue to run for any amount of time? Mine has never ran after turned off. Thanks for reading!