Sports: Re: [DucatiST] 03 ST4S no start

Good day Dave, I am not at home to check the manual but if i am not mistaken, and if I am someone will chime in, the sensr is on the generator cover lh side of engine near the water pump housing. I could be getting confused with the ST3 but i think they are both in same place .

The one i had an issue with the sensor had swollen up and was obviously breaking down. All it is in relatively plain english, its a magnetic sensor that picks up pulses from a gear (46 tooth if i am not mistaken) and sends the impulse to the ECU to initiate the sparks.

Sent from my iPhone

On Sep 4, 2011, at 23:31, "smokndav" <smokndav23@charter.net> wrote:

--- In st2_owners@yahoogroups.com, Doug McDougal <loon744@...> wrote:
>
> Still sounds like the CPS, crank position sensor. That tells the ECU when to 'throw' the spark out there. Had one go on a 03 ST4s recently with the very same symptoms.
>
> Sent from my iPhone

>
>
I do think you are onto something.
Where is the CPS located on the bike ? is it something I can test?
Dave