2020-03-10 Temperature Gauge Calibration

From Stiggy at Kz1300.com

The temperature gauge calibration.
I used a bench power supply set at 7 volts the same as the instrument regulator on the bike.

Removed the instrument pod from the bike and dismantled it to remove the temperature gauge.
Taking the two mid resistance values from the service manual for 80 and 100 degc, of 52 and 28 ohms respectively , I made some resistors from constantan resistance wire to match the two values.

Then connected the gauge to the 7v supply via one of the resistors.

The gauge does have zero and span adjustments which can be administered with a suitably sized flat blade screwdriver. Keep alternating zero and span resistors and adjusting the gauge zero and span until it reads correctly.
Note the gauge should be calibrated at the angle that it is mounted at on the bike.... it does make a difference.

I have attached image below of my notes...I should have taken a picture of the zero and span adjustments...sorry.