Oil Temp Sensing

[rputney01]

As I was working through an electrical issue, I found that I have a wire near the starter that is not connected to anything. It is a pink wire that is supposed to connect to the oil temperature sensor. The bike has a Lockhart oil cooler on it.

I can't tell from the wiring diagram where the sensor would be physically located. The wire length is the same as the oil pressure sensor wire, so I assumed that it would be somewhere nearby, but I can't find it. Would anyone know where I should look? Does the addition of an aftermarket oil cooler remove the temperature sensing point?

Thanks.

[Steve]

If the lines to the cooler come from the pressure sensor area, then yes, the adapter for the cooler lines might have eliminated the port for the temp sensor.

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[rputney01]

I suspected that was the case.

I can't tell from the fiche where it was originally. Oh well, back to the drawing board.

Thanks.

[Sandy]

If you look at the fiche on the Alpha Sports site on the crankcase page you'll see a part #40. This I think is the temp sensor in it locates in a hole to the rear of the rear bolt on the stock oil pressure switch plate. Not counting the bolt holes the non "S" models just had one hole for the pressure switch while the "S" models had this extra hole at the rear for the temp sender.

[rphillips]

Weren't the pressure & the temp sensors both a part of the same unit? for bikes without a temp guage, there was only a flat (spade) plug for pressure switch wire. For the bikes with a temp guage there was a flat (spade) plug for the pressure switch connector & a round plug for the temp wire connector.

[Nessism]

Weren't the pressure & the temp sensors both a part of the same unit? for bikes without a temp guage, there was only a flat (spade) plug for pressure switch wire. For the bikes with a temp guage there was a flat (spade) plug for the pressure switch connector & a round plug for the temp wire connector.

The temp sensor is separate from the pressure sensor.

[rputney01]

If you look at the fiche on the Alpha Sports site on the crankcase page you'll see a part #40. This I think is the temp sensor in it locates in a hole to the rear of the rear bolt on the stock oil pressure switch plate. Not counting the bolt holes the non "S" models just had one hole for the pressure switch while the "S" models had this extra hole at the rear for the temp sender.

It looks like this is the case. The wires are together near the starter, so I'm guessing that the temp sensor came out when the oil cooler adapter went in. Thanks for the help!