Re: [DucatiST] Re: Kill switch intermittent

As an electrical engineer/mechanic I would test the switch with a
multimeter in voltmeter mode. Use the positive lead of the voltmeter to
probe the wires into the switch with the negative lead connected to a
convenient ground. Turn on the key and see if there is any voltage on
either wire with the switch off. If you find voltage on one wire and not
the other then that wire is the input. Turn the switch on and check for
voltage on both wires to the switch. If there is still no voltage on one
wire then the problem is the switch. If there is voltage on both wires
with the switch on then the problem is the relay. HTH.

Gary '01 ST4 Gaston, OR

On 8/2/2010 1:00 PM, mike wrote:
>
>
>
> --- In st2_owners@yahoogroups.com
> <mailto:st2_owners%40yahoogroups.com>, "nate_isu_2000"
> <nateducst2@...> wrote:
> >
> > Hey all, I got a question for ya! My kill switch is starting to act
> funny lately....
>
> well, I am fully prepared to be corrected, electricity and myself have
> always had an antagonistic relationship, BUT are the fuel pump and the
> ignition actuated by the same relay? Looking at the manual and the
> Derek Blackie wiring diagram I can't tell. If they are, then the relay
> is obviously a possibility. However since this fault occurred on my
> bike I have stopped using the kill switch and the fault has never
> re-occurred. As the relay will be actuated every time I switch on the
> ignition, it still seems to me that the switch is the primary suspect.
> Or am I missing something??
> mike
> 2001 ST4
>
>

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