coolant sensor

[Ron Moss]

Just replaced the oil pressure sensor and now the coolant sensor is bad. Has anyone ever found a crossover to an automotive one ??
The sensor is bad. The gauge checked out as good  and I have done all the tricks and checks to the sensor, it's bad.
Fan sensor is working as it should.

[redzgrider]

You say fan switch is good, so you're speaking of the temp. sending unit, located on the thermostat cover?

[SteveJ.]

Just to be sure, did you try tapping the connection point rivet with a small chisel to solidify the connection? Common problem.

Can't help on the replacement number.

Good Luck.

[Ron Moss]

Just to be sure, did you try tapping the connection point rivet with a small chisel to solidify the connection? Common problem.

Can't help on the replacement number.

Good Luck.

Did that, and all the other tips  I read about.

[2fast]

A bit off subject, but anyone know where to get an aftermarket temp gauge that will thread into the thermostat housing? It is almost a 10mm 1.0 pitch, but not quite. Slightly smaller.

[mdr]

Didn't see one on the list, so if you do find one, please let me know so I can add it!

http://www.randols.net/Connie/#CommonParts

[GeeBeav]

A bit off subject, but anyone know where to get an aftermarket temp gauge that will thread into the thermostat housing? It is almost a 10mm 1.0 pitch, but not quite. Slightly smaller.

http://daytonamotorcycleparts.com/shop/Digital-temperature-gauge-wclock-function_46162.html

[2fast]

Have you installed one of these? It says it does not include the adapter for the sensor, which seems to be the main problem with fitting up an aftermarket sensor.  I may just re tap the hole to fit whatever I get if the correct threads can't be found.

[Karl]

A bit off subject, but anyone know where to get an aftermarket temp gauge that will thread into the thermostat housing? It is almost a 10mm 1.0 pitch, but not quite. Slightly smaller.

    Not exactly what you asked for, but a temp instrument that is easy to install.
 I installed a KOSO digital temp gauge.  Use the 26 mm fitting, i installed it just downstream of the original t-stat housing, in the water hose. 
The instrument runs on a button battery.  The backlight in the instrument runs off the bike elect system.  It works ok, i rigged it up when i was experimenting with different t-stat configurations.

Good luck to ye.

[2fast]

Karl, thanks a ton! That will suit the purpose just fine, probably easier to install as well. None of my searches turned that up, so I really appreciate it. 

I just placed my order for one on Bike Bandit.

[Summit670]

There is an aftermarket temp sending unit available for I believe around $25 and it looks about identical to the OEM, just a tad longer and the temp at which it kicks on is like 5 or 10 degrees cooler. 

Part numbers I obtained last year on this site:
Auto Zone - Wells SW504  $23
Borg Warner TFS500
Echlin (NAPA) FS-130 $50
Four Seasons 35934
Filko TFS-1
Facet FS8404

My notes indicate I went with Auto Zone.

Even though the unit switches on the fan sooner, it really isn't noticeable and I probably wouldn't notice it at all if I didn't know it was supposed to kick on sooner.

[Outback_Jon]

There is an aftermarket temp sending unit available for I believe around $25 and it looks about identical to the OEM, just a tad longer and the temp at which it kicks on is like 5 or 10 degrees cooler. 

They're talking about the sensor for the temperature gauge, not the fan switch.

[Ron Moss]

OK, I bought and replaced the coolant sensor. ( the one for the gauge) It works but in riding in city traffic in 100 + temps the gauge never reached  half way up on the gauge. The fan did come on as it should so every thing is working right. I'm thinking the bike is running to cool or the sensor or gauge are off and not reading true. any thoughts. 

[SteveJ.]

 low on coolant? Gauge will read low if coolant is low.

[Ron Moss]

low on coolant? Gauge will read low if coolant is low.

Coolant level is OK. Would a stuck thermostat allow the fan to come on when the gauge is just above white square ?
I'm thinking since the fan is operating as it should then the sensor setting is off.
Any way to check to see if the thermostat is stuck with out pulling it?
Not worried about the bike it's doing just fine, just puzzled about the readings. 

[SteveJ.]

Coolant level is OK. Would a stuck thermostat allow the fan to come on when the gauge is just above white square ?
I'm thinking since the fan is operating as it should then the sensor setting is off.
Any way to check to see if the thermostat is stuck with out pulling it?
Not worried about the bike it's doing just fine, just puzzled about the readings.

Rethinkin' this out, I don't see how the stat would be stuck causing over coolong and still the fan kicks on.

Bad wiring connection. Bad gauge? A "will-fit" sensor that has different voltage characteristics? A defective sensor?

[Ron Moss]

Rethinkin' this out, I don't see how the stat would be stuck causing over coolong and still the fan kicks on.

Bad wiring connection. Bad gauge? A "will-fit" sensor that has different voltage characteristics? A defective sensor?

wiring checks out,gauge checks out, new sensor from momma kaw.

[T Cro ®]

OK, I bought and replaced the coolant sensor. ( the one for the gauge) It works but in riding in city traffic in 100 + temps the gauge never reached  half way up on the gauge. The fan did come on as it should so every thing is working right. I'm thinking the bike is running to cool or the sensor or gauge are off and not reading true. any thoughts.

Fan has its own temp switch on the left side of the rad and has NOTHING at all to do with any other system; this is why the fan can cycle on/off once you remove the key switch. The Water Temp Sensor sends a variable resistance to ground reading to the Water Temp Gauge depending on temp this is why we stress checking the system out for loose connections as they will cause inaccurate readings on the gauge; IE loose connections equal low readings...

[SteveJ.]

wiring checks out,gauge checks out, new sensor from momma kaw.

Define "wiring checks out."

 Different people have different ideas on the meaning of "wiring checks out" Some folks take a cursory look at the wire, see it's hooked up, and figure it "checks out." A look in this case is not good enough. Real measurements are needed.

Did you check the wire with an ohmmeter from the gauge to the sending unit? (key off)

Also, voltage at gauge, voltage at sending unit(key on). These measurements involve the yellow/white stripe wire that runs from the gauge to the sending unit on the stat housing.

Also, a voltage check on the brown wire going into the gauge, at the gauge, would be helpful.