Are you reading this of the factory 240 gauge?

Those gauges are retarded and are known for malfunctioning before the sensor goes bad all the way.

If you're going from an aftermarket gauge that you know is accurate then you should be between 170 and 180 F at operating temp on a SR. 200 would be running hot, people say they hit 220 on a hot day at the track, that is bad though.