I think it takes longer to get up to 3 bars now. 10 mins of driving. Is that normal?
I find ten minutes of riding time to get to three bars is long. Takes a little longer when just idling stationary, but when riding it should get there fairly quickly at warm ambient temperatures that I presume you are experiencing at this time of year. At this time of year I hit one bar after about one minute. I would say less than five minutes of riding time I am at three bars.
Rob:
I did an imprecise test for you today. Imprecise in that I was using the clock on the ST which doesn't display seconds, but it will give you a good idea.
It was pretty close to my previous estimate quoted above.
The engine hadn't been started for a few days and was at an ambient temperature of 26 deg. C, 79 deg. F.
With the clock displaying 34 minutes past the hour, I started the engine and let it idle until one bar was displayed on the temperature gauge.
The idle started dropping down just as the clock changed to 35 minutes past the hour, so one minute lapsed time.
One bar appeared on the gauge before the clock changed to 36 minutes past the hour. My guesstimate was 90 seconds to get to this point.
At this point I began riding at low speeds of about 30 Km/h, 18 MPH.
The second bar appeared on the gauge before 37 minutes passed the hour appeared on the clock, so somewhere between two and three minutes from the time the engine was started.
The third bar appeared very shortly after the clock had changed to 37 minutes past the hour. To be generous, I'll quote 37 minutes and 30 seconds, but I know that it was not as long as 30 seconds.
My temperature gauge has always responded this quickly and I always considered this normal. I still have the original factory thermostat and my temperature gauge always displays three bars once the engine is fully warmed up.
In summary;
Starting at an ambient temperature of 26 deg. C, 79 deg. F, and with the engine at this same temperature, and idling stationary until one bar was displayed on the temperature gauge before riding, and then riding at a very slow speed, it took a maximum of 3 1/2 minutes until three bars were displayed on the temperature gauge.