Funky Temp Readings

[VikingDave]

Hi All,

 

My VFR750F-M has a funny temp reading, the gauge moves but barely, the bike is obviously getting up to temp, the fan kicks in but the reading is squint.

 

I've done the temp sender grounding and the needle didn't move. Is it a faulty gauge even though it moves? Could the sender be gummed up? Anything else it could be?

 

Cheers!

[Captain 80s]

I think you can put some voltage to the meter and check for movement...

 

[Grum]

Things to check......

1. Check for continuity of the Sensor Body (Ground) back to the Battery Negative Terminal.

2. Make sure the connector to the Sensor is clean and making good contact.

3. Measure 12v between the Sensor wire and Ground, ignition to On. Refer Service Manual.

4. Check continuity of the Sensor wire, from the Sensor up to the Instrument. 

5. Check 12v at the Instrument Black/Brown 12v, Green/Black Ground.

6. Check the three connections at the instrument are good and clean.

7. Do the resistance checks for the Sensor. Refer Service Manual.

 

The Service Manual is downloadable from this forum if you don't already have it.

  

[squirrelman]

if the coolant level falls too far below the temp sensor the reading will not be correct.  best to check under the rad cap cuz overflow bottle level could be misleading

[VikingDave]

Thank you all so much! Will get onto these steps on the weekend!