irratic temperature indication 88 VR

[bikerjohn51]

this one is puzzling me, since I changed to a new battery, my temperature sensor is acting erratic, I think it's electrical, poor ground maybe????,.... my old battery was always demanding a 16V charge, but the new battery, at idle is around 13V, at that time the temp indicator goes off-scale low ( reads less than zero), as soon as I rev up, it jumps to 1/3 scale, where you would expect it to be....... as soon as you come to rest it goes low again, and from time to time it jumps around 1/8" while riding,....I checked the manual, and it gives the location of the temperature sending unit..... can anyone tell me where the physical location to the ground is ???? JOHN ( or any other thoughts on the subject:confused24:

[BOO]

Sure sounds like you have some wiring problems. 16v is to much for the charge and I doubt it would be charging much at idle.

You may want to check the battery with a good volt meter just to make sure what it is doing. I bet you have a bad connection somewhere. One of the first places I always check is the three wire plug that comes from the stator.

Jerry

[IH Truck Guy]

this one is puzzling me, since I changed to a new battery, my temperature sensor is acting erratic, I think it's electrical, poor ground maybe????,.... my old battery was always demanding a 16V charge, but the new battery, at idle is around 13V, at that time the temp indicator goes off-scale low ( reads less than zero), as soon as I rev up, it jumps to 1/3 scale, where you would expect it to be....... as soon as you come to rest it goes low again, and from time to time it jumps around 1/8" while riding,....I checked the manual, and it gives the location of the temperature sending unit..... can anyone tell me where the physical location to the ground is ???? JOHN ( or any other thoughts on the subject:confused24:

 

Make sure the wire connector on the end of the sensor is clean and tight.My temp was erratic too and fixing this wire took care of the problem for me...

[Squidley]

Also make sure that the connector to the unit is tight on the post of the sender. It's on the right side of the bike on the upper frame tube top of the radiator.