Does anyone know what this is?

[ducpainter]

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.

[koko64]

+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.

[MongoReturns]

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.

[koko64]

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.

[koko64]

This as good as I could get without tearing the airbox out, it's getting dark and I have work soon.
Hope they help.







I snapped this one too, if these numbers mean anything to you Nate.

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.

[MongoReturns]

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   

I don"t think I have icing problems through the rev range.  It's always accelerated very smothly.  Smoother after Dynojet Stage 2 

[ducpainter]

<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 40⁰F.

It felt like the slide didn't move when the throttle was twisted.

[Howie]

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.

[ducpainter]

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.

[koko64]

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?

[Howie]

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.

[koko64]

Nope.  Plus I have endured carb icing.

Shame on me for thinking Ducati finally fixed the problem.

[greenmonster]

(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.....