I've torn down the front of the bike before but have never thought to ask.
What the hell is this?
(http://i31.photobucket.com/albums/c363/swangas/Fuel%20Tank/IMG00020-20100708-1622.jpg)
Quote from: duc750 on July 08, 2010, 04:04:12 PM
I've torn down the front of the bike before but have never thought to ask.
What the hell is this?
(http://i31.photobucket.com/albums/c363/swangas/Fuel%20Tank/IMG00020-20100708-1622.jpg)
I'd say it was an ambient air temp sensor...
but you say you have an '01 M750 which would be carbed, and a carbed bike wouldn't have that part.
I assumed it was some kind of temp sensor. It's on there though, hooked up and all.
I guess I don't really have a need to get rid of it, I was just wondering what it was.
Quote from: duc750 on July 08, 2010, 04:23:04 PM
I assumed it was some kind of temp sensor. It's on there though, hooked up and all.
I guess I don't really have a need to get rid of it, I was just wondering what it was.
And your bike has carburetors....
not throttle bodies?
I need pics.
Pretty sure its carb'd. Carb'd tank and Speeddog has already worked on it.
What do you want pics of, the carbs?
Quote from: duc750 on July 08, 2010, 04:44:27 PM
Pretty sure its carb'd. Carb'd tank and Speeddog has already worked on it.
What do you want pics of, the carbs?
If Nick has worked on it and says it has carbs I don't need anything.
It is kind of odd that a carbed '01 bike has parts from a FI '02 bike.
I don't believe Ducati is that forward thinking,. ;D
I have the same piece on my 2001 900 and had it on my GF's 2000 900 (both FI of coure) . it was broken on my GF's bike so I never replaced it as I didn't know what it was. It doesn't seem to make a difference.
Quote from: ducpainter on July 08, 2010, 04:46:34 PM
If Nick has worked on it and says it has carbs I don't need anything.
It is kind of odd that a carbed '01 bike has parts from a FI '02 bike.
I don't believe Ducati is that forward thinking,. ;D
He never actually said "your bike is carb'd" but I've never asked either. Just kind of gathered that myself when I bought it and from playing around on here. It's also got a carb'd tank, two hose hook-ups and one smaller screw hole for the fuel level sensor. Give me a minute, I'll get some pics for you.
since recent ownership and tinkering around with my bike, I too discovered that exact same part minus the bracket. My bike is a 2000 Monster 750 and is 110% carb'd. What does it do? Does it need to be there, because I find it a little unsightly in the big opening below my gauges and in infront of my top triple clamp
Quote from: COP TZR on July 08, 2010, 05:11:29 PM
since recent ownership and tinkering around with my bike, I too discovered that exact same part minus the bracket. My bike is a 2000 Monster 750 and is 110% carb'd. What does it do? Does it need to be there, because I find it a little unsightly in the big opening below my gauges and in infront of my top triple clamp
If I'm right, and it's a temp sensor...
rip it out....
I'm wondering if in the year 2K they made a chassis for the bikes...the 2K 900 had fuel injection, but also had the ignition of a carbed bike
The 750 was carbed, but had the wiring for the injection.
curious
This as good as I could get without tearing the airbox out, it's getting dark and I have work soon.
Hope they help.
(http://i31.photobucket.com/albums/c363/swangas/Fuel%20Tank/IMG00021-20100708-1907.jpg)
(http://i31.photobucket.com/albums/c363/swangas/Fuel%20Tank/IMG00022-20100708-1908.jpg)
(http://i31.photobucket.com/albums/c363/swangas/Fuel%20Tank/IMG00024-20100708-1909.jpg)
I snapped this one too, if these numbers mean anything to you Nate.
(http://i31.photobucket.com/albums/c363/swangas/Fuel%20Tank/IMG00025-20100708-1910.jpg)
That air temp sensor is also used on carbed bikes with electrically heated float bowls, like in your photos.
Quote from: howie on July 08, 2010, 07:41:41 PM
That air temp sensor is also used on carbed bikes with electrically heated float bowls, like in your photos.
There's your answer
why?
Quote from: howie on July 08, 2010, 07:41:41 PM
That air temp sensor is also used on carbed bikes with electrically heated float bowls, like in your photos.
So it is needed?
Quote from: duc750 on July 09, 2010, 10:38:39 AM
So it is needed?
My bike doesn't have the float bowl heaters and it runs fine.
It does ice the carbs at certain temps, but my info is the heated float bowls don't really help eliminate that condition.
+1 that the factory warranty solution of heated float bowls didn't work, that was my experience with the oil jacket type float bowl solution. The plumbing was ugly too.
Electric heating of the float bowls; intriguing automotive solution. So the air temp sensor allows the switch to automatically fire up the float bowl element. Does it work, or do the long manifolds ice up anyway?
If it works you could get the parts to retrofit to the earlier carbed bikes. That could be a real improvement allowing a less compromised low rpm jetting solution.
Well mine's always started well, including after digging it out from under a couple feet of snow. I usually turn it one for a minute before cranking, thinking this helps. I've always thought the system was kinda cool.
Quote from: MongoReturns on July 09, 2010, 01:10:26 PM
Well mine's always started well, including after digging it out from under a couple feet of snow. I usually turn it one for a minute before cranking, thinking this helps. I've always thought the system was kinda cool.
You mean it's manually switched on or is it automatic via the temp sensor and you just turn on the ignition for a minute? I see how pre warming the float bowls helps on start up. Does the air temp sensor indicate something on the dash? I suppose when it's snowing no dash light is necessary! That is cool. The early carb models could have used that system that's for sure as the oil jacket system didn't work for me.
MR, I'm only familiar with the oil jacket warmers Ducati used under warranty here in Oz, would you explain the electric system?
Cheers.
Quote from: duc750 on July 08, 2010, 05:26:57 PM
This as good as I could get without tearing the airbox out, it's getting dark and I have work soon.
Hope they help.
(http://i31.photobucket.com/albums/c363/swangas/Fuel%20Tank/IMG00021-20100708-1907.jpg)
(http://i31.photobucket.com/albums/c363/swangas/Fuel%20Tank/IMG00022-20100708-1908.jpg)
(http://i31.photobucket.com/albums/c363/swangas/Fuel%20Tank/IMG00024-20100708-1909.jpg)
I snapped this one too, if these numbers mean anything to you Nate.
(http://i31.photobucket.com/albums/c363/swangas/Fuel%20Tank/IMG00025-20100708-1910.jpg)
I can see the wire going to the carb for the heating element. First time I've seen that on Monster CV carbs. I would hook up a manual switch and ditch the extra bracket and temp sensor if they annoy you, allowing you to run the element with the ignition off before starting, or you could just ditch the bracket and put the sensor somewhere that suited you.
Ok, so it helps starting but does it stop icing once you are moving through the rev range? Because if it works, I can't believe Ducati finally fixed it! I had no end of grief with my CV carbs with and without the factory warranty (oil jacket type) heating kit.
Quote from: koko64 on July 09, 2010, 01:27:45 PM
You mean it's manually switched on or is it automatic via the temp sensor and you just turn on the ignition for a minute? I see how pre warming the float bowls helps on start up. Does the air temp sensor indicate something on the dash? I suppose when it's snowing no dash light is necessary! That is cool. The early carb models could have used that system that's for sure as the oil jacket system didn't work for me.
MR, I'm only familiar with the oil jacket warmers Ducati used under warranty here in Oz, would you explain the electric system?
Cheers.
Its automatic as far as I can tell - I've always figured that's what that sensor does. It certainly doesn't control anthing else. Unless the heater thing is always on, but I doubt that. There's no dash indicator. As far as dash lights go, I'm down to high/low lights and (hopefully!) oil pressure. Oh wait the binker one still works. You just can't tell if you're making a right or left [laugh]
I don"t think I have icing problems through the rev range. It's always accelerated very smothly. Smoother after Dynojet Stage 2 :)
Quote from: MongoReturns on July 09, 2010, 02:56:04 PM
<snip>
I don"t think I have icing problems through the rev range. It's always accelerated very smothly. Smoother after Dynojet Stage 2 :)
The only times I've had icing problems was on humid mornings around 40
0F.
It felt like the slide didn't move when the throttle was twisted.
Quote from: ducpainter on July 09, 2010, 05:40:06 PM
The only times I've had icing problems was on humid mornings around 400F.
It felt like the slide didn't move when the throttle was twisted.
This is what the heaters are for, not to help you start. Do they help? A little maybe. If I remember correctly they are about 3 watts.
Quote from: howie on July 09, 2010, 07:41:51 PM
This is what the heaters are for, not to help you start. Do they help? A little maybe. If I remember correctly they are about 3 watts.
I think they're pretty useless.
There's no way a 3 watt heater can warm the fuel enough to keep the slide from icing.
It's a shame because the car systems are supposed to work. Only 3 Watts, you reckon it needs more like 30 Watts! Anyone with the system notice any warmth at the float bowl to the touch?
Quote from: koko64 on July 10, 2010, 10:31:19 AM
It's a shame because the car systems are supposed to work. Only 3 Watts, you reckon it needs more like 30 Watts! Anyone with the system notice any warmth at the float bowl to the touch?
Nope. Plus I have endured carb icing.
Quote from: howie on July 10, 2010, 07:37:12 PM
Nope. Plus I have endured carb icing.
Shame on me for thinking Ducati finally fixed the problem.
Quote(oil jacket type) heating kit.
Actually worked quite well f me, lotsa humid & cold weather over here.
Always on below +15C, one very humid morning at +6 it actually stopped running w/o it.
Worked OK after turning heater on, but AFAIR, it is not the most efficient gadget I`ve seen.....