Wow
Not to toot our own horn but I remember reading this and just this week borrowed a I/R MAC tool thermometer. It was easy to find this post with a keyword and a tag search.
Well holy crap I have a Tiger that runs too cool and the gauge is way off. Now I am tempted to see if the PO put in a 160 thermostat or maybe a email is the lazy mans way for now. It has a early Dale add on Davis with no expansion tank, which I was going to add back as I like the look and I thought it was running hot. My VW like test of how long you can hold a 190 degree dipstick test was always in question. "Been 20 years since the VW has run." I think my fingers n brain forgot the number of seconds you can lay your hand on a air cooled alloy head.
A feat I still perform with my toy Honda motorcycles but only once a month in the hash Cali winter and Spring.
The stabilizer is not suspect as yet as I have not voltage tested it but the fuel tank maybe under reads when tank is full " yard stick and eye ball" method.
Got too many other projects now so maybe it will be like the old AM radio without presets and a fickle tuner a small line of tape at 180
Oh PS is there a small marking on the temp sender usually? got to find the reading glasses.