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  #1  
Old 14th May 2017, 09:45 PM
galwayducati galwayducati is offline
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Motorbike: Ducat Monster 620 ie
Default Ducati Monster Temperature not registering

Newbie to the forum so welcome any advice on my query.

Started up my bike yesterday (2003 Ducati Monster 620) and took for a spin after being sitting up for the winter. I noticed however the temperature on the clocks didn't change and just kept flashing "---" . Doesn't even say "Lo".

Anyone any idea what this means? Could it be the oil or cooling temperature sensor is gone? I checked both and they have a good connection. They are not loose or anything. Oil pressure is good also. I could buy a new switch to test but they're around 45 so like to troubleshot first if possible. Can these switches be tested?

Thanks In advance.
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  #2  
Old 14th May 2017, 09:51 PM
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N11 EXPRESS N11 EXPRESS is offline
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Default Re: Ducati Monster Temperature not registering

How far did you go for a spin my bike doesn't show anything till it gets to about 40 degress
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  #3  
Old 14th May 2017, 09:53 PM
galwayducati galwayducati is offline
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Motorbike: Ducat Monster 620 ie
Default Re: Ducati Monster Temperature not registering

Originally Posted by N11 EXPRESS
How far did you go for a spin my bike doesn't show anything till it gets to about 40 degress
I was on it for a good 20 minutes so defo woudl have reached 40 degrees.
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  #4  
Old 14th May 2017, 10:43 PM
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jmorris jmorris is offline
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Default Re: Ducati Monster Temperature not registering

http://www.ducati.ms/forums/attachme...h-sezv-_35.jpg

This piece in on the rhs of the engine, underneath the oil level window. one wire connects to it- check it hasn't come loose.
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  #5  
Old 14th May 2017, 10:50 PM
galwayducati galwayducati is offline
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Default Re: Ducati Monster Temperature not registering

Thanks jmorris. I had checked this and its good connection. I suppose its possible this is no longer working?
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  #6  
Old 14th May 2017, 11:14 PM
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Default Re: Ducati Monster Temperature not registering

Connect the black wire to a good earth on the bike and the ----- on the clock should change to low, if I remember correctly, I'll check tomorrow.
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  #7  
Old 14th May 2017, 11:23 PM
galwayducati galwayducati is offline
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Default Re: Ducati Monster Temperature not registering

Originally Posted by jmorris
Connect the black wire to a good earth on the bike and the ----- on the clock should change to low, if I remember correctly, I'll check tomorrow.
Fair play man. I really appreciate that!
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  #8  
Old 15th May 2017, 01:17 PM
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Default Re: Ducati Monster Temperature not registering

Turn on ignition and whip off the spade connector on the sensor and earth it- ie attach to to a solid metal part of the bike nearby-the temp guage should change from ----- to high numbers eg 180c. Then you know the wiring is ok. I would clean the spade connector and the brass piece it attaches to and see does that fix it. You will know its working as the ------ will be replaced with a flashing LOW signal until the engine heats up. Lots of crap gets flung on the sensor so it could be a dirty or poor connection. Let me know how you get on.
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  #9  
Old 15th May 2017, 04:26 PM
galwayducati galwayducati is offline
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Default Re: Ducati Monster Temperature not registering

Originally Posted by jmorris
Turn on ignition and whip off the spade connector on the sensor and earth it- ie attach to to a solid metal part of the bike nearby-the temp guage should change from ----- to high numbers eg 180c. Then you know the wiring is ok. I would clean the spade connector and the brass piece it attaches to and see does that fix it. You will know its working as the ------ will be replaced with a flashing LOW signal until the engine heats up. Lots of crap gets flung on the sensor so it could be a dirty or poor connection. Let me know how you get on.
OK so I tried what you said and sure enough when I earthed the wire the temp gauge showed either a high numbers or showed low / high. The wire was soldered onto the connection at the bottom so perhaps this was the issue? Would you suggest I just get a new switch altogether? Dont think I'll be able to reconnect (the brass piece which screws into the sump?)
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  #10  
Old 15th May 2017, 07:32 PM
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Default Re: Ducati Monster Temperature not registering

Sounds like someone messed with it before- I would strip the wire back a bit and solder it back onto the sender unit, or is it possible to loop the wire tightly around the sender so that it makes a connection ?
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  #11  
Old 15th May 2017, 07:45 PM
galwayducati galwayducati is offline
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Default Re: Ducati Monster Temperature not registering

Originally Posted by jmorris
Sounds like someone messed with it before- I would strip the wire back a bit and solder it back onto the sender unit, or is it possible to loop the wire tightly around the sender so that it makes a connection ?
It looks to me like the little connector piece broke and it was soldered on directly to the sender as a quick fix. Because its showing a reading when I earth it would you say its either the sender or a bad connection thats faulty?
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  #12  
Old 15th May 2017, 08:09 PM
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Default Re: Ducati Monster Temperature not registering

Bad connection- drive the bike as normal and then hold the wire to the sender and the correct temp should be on the clocks . Approx 50 when warmed up. Personally I'd buy a cheap soldering iron and resolder it or any auto repair place should be able to do it in a few minutes.
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  #13  
Old 15th May 2017, 08:28 PM
galwayducati galwayducati is offline
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Default Re: Ducati Monster Temperature not registering

Originally Posted by jmorris
Bad connection- drive the bike as normal and then hold the wire to the sender and the correct temp should be on the clocks . Approx 50 when warmed up. Personally I'd buy a cheap soldering iron and resolder it or any auto repair place should be able to do it in a few minutes.
OK cool. I'll give that a go. I'll let you know how I get on. Thanks for all your help.One last thing, is it possible the bike could run rich because of this? ie: ECU not knowing the bike is warmed up?
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  #14  
Old 15th May 2017, 08:40 PM
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Default Re: Ducati Monster Temperature not registering

No! Ecu is a separate issue. When monsters get v hot they can run lumpy on tick over- get it up to robbie in moto tecnic in kimmage to give it a good check.
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  #15  
Old 15th May 2017, 08:54 PM
galwayducati galwayducati is offline
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Motorbike: Ducat Monster 620 ie
Default Re: Ducati Monster Temperature not registering

Originally Posted by jmorris
No! Ecu is a separate issue. When monsters get v hot they can run lumpy on tick over- get it up to robbie in moto tecnic in kimmage to give it a good check.
Cool. Thanks for all your help again. I'll post an update tomorrow after I try and clean up the sender.
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  #16  
Old 19th May 2017, 10:03 AM
galwayducati galwayducati is offline
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Default Re: Ducati Monster Temperature not registering

Originally Posted by galwayducati
Cool. Thanks for all your help again. I'll post an update tomorrow after I try and clean up the sender.
So I looked at the connection. I cleaned it with a light rub of sandpaper so the connection was clean. As per the picture attached, I get no reading when connected to the area the wire should be attached to (still slashes ---) but when I touch the rest of the sender is does show some sort of reading. Do you think the sender is gone?

Click the image to open in full size.
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  #17  
Old 19th May 2017, 06:22 PM
galwayducati galwayducati is offline
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Motorbike: Ducat Monster 620 ie
Default Re: Ducati Monster Temperature not registering

Click the image to open in full size.
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  #18  
Old 19th May 2017, 07:46 PM
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jmorris jmorris is offline
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Default Re: Ducati Monster Temperature not registering

Looks like the sender unit is knackered. It will register as you touch the body as you are earthing it. The wire should be connected to the tip of the sender, i.e. The round bit. Should be an easy replacement - you might have to lean the bike far over to the left in case oil runs out as you loosen the sender unit. Either that or drain the oil first.
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  #19  
Old 19th May 2017, 10:54 PM
galwayducati galwayducati is offline
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Motorbike: Ducat Monster 620 ie
Default Re: Ducati Monster Temperature not registering

Originally Posted by galwayducati
So I looked at the connection. I cleaned it with a light rub of sandpaper so the connection was clean. As per the picture attached, I get no reading when connected to the area the wire should be attached to (still slashes ---) but when I touch the rest of the sender is does show some sort of reading. Do you think the sender is gone?

Click the image to open in full size.
Originally Posted by jmorris
Looks like the sender unit is knackered. It will register as you touch the body as you are earthing it. The wire should be connected to the tip of the sender, i.e. The round bit. Should be an easy replacement - you might have to lean the bike far over to the left in case oil runs out as you loosen the sender unit. Either that or drain the oil first.
Ducati want 50 for it! Joys of an Italian bike I suppose..

Did you ever hear of anyone using one form a car like this one?

http://www.ebay.ie/itm/OIL-TEMP-TEMP...MakeTrack=true

Be tempted to try it just to make sure it is the sender before paying the Ducati premium.
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  #20  
Old 20th May 2017, 11:44 AM
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Default Re: Ducati Monster Temperature not registering

Originally Posted by galwayducati
Ducati want 50 for it! Joys of an Italian bike I suppose..

Did you ever hear of anyone using one form a car like this one?

http://www.ebay.ie/itm/OIL-TEMP-TEMP...MakeTrack=true

Be tempted to try it just to make sure it is the sender before paying the Ducati premium.
If it has the same characteristics it will work, just did this with the KTM for the fan switch, got one from a 4 wheeled suzuki and works a dream
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