I got a autometer 140 to 300 * gage and installed it above the oil psi gage, went for a 10 mile ride and the dang thing didnt move...
checked the wireing and all ok , put multimeeter on OHMS setting and ftom unit to gnd was 130.7 now i know you can use a MM for temp . did i do this right or am i all fubar?

 

my HD oil temp guage doesn't register anything below 150...

a 10 minute ride may not have been enough to raise the oil temp high enough to register..

 

I ride 20 miles to work. Just barely comes up to temp.

 

On cooler days in the 50s or low 60s it can take mine a long time to get to 140 or 150 and 180 is about as high as it will getif I'm highway riding.
On days in the 70s or even 80s it still takes a long time before the gauge starts to climb to 220 where it stays.

 

I just recently had my oil temp gauge installed and also doesnt resgister until 150ish. It aslo doesnt register for 5 minutes after I start riding due the sending unit is nect to the oil cooler.

 

Just gotta ride it for a while to see it move.

 

air temp in phila yesterday was 75.. during an hour long ride, my oil temp was running between 210 and 230.. lower on the expressway, higher on stop and go traffic.
I run an oil cooler and synth oil

 

It takes about 30 miles or sometimes better depending on the temperature outside. I had the same thing happen to me then I read on this forum it usually doesn't register till over 150 degrees, so I went for an hour ride and it worked great.

 

This time of year mine takes about 45 minutes of riding before the gauge will start to register.