Bill,

This sounds just like what recently happened to mine.  Pull a plug, right
after trying to start it.  Is the plug wet with fuel?  If so, I'd check
the vacuum tube that runs near the sensor at the top of the tank (under
the plastic) to make sure it's not blocked.

As for specific comments:

On Mon, 30 Nov 1998, William Guilford wrote:

> Nope.  It just croaked.
> 
> It cranks.  The fuel pump runs.  It kicked a couple of times, but now
> won't do a thing.  I left it sit overnight, thinking that I must have
> flooded it somehow, but to no avail. Now it won't even kick.  Just the
> gentle whir of the fuel pump, and crank-crank-crank.  The only
> immediate clue is that there seems to be some "clicking" of relays in
> the control unit while the fuel pump pressurizes the system - clicking
> that I don't remember being there before.  There were no hints of
> anything being wrong prior to this.

After you try to start it, does the fuel pump seem to run a bit more than
it used to?  If so, it indicates that the injectors are spraying too much
fuel into the cylinders.

> Does this sound familiar to anyone?  Where does one start, aside from
> checking for spark?  A tow to the nearest dealer?  For those who
> missed the "bikes with EFI" thread, the GTS is my first bike with fuel
> injection.  Tis true, it's a big "black box."

This sounds waaayyy too familiar.  This is exactly the pattern mine had
a month ago.  On mine, the crimped vacuum tube was causing the EFI to read
"wide open throttle" and caused flooding as soon as the key was turned on.
Waiting for time to "unflood" the bike doesn't help, since it just
refloods as soon as you try to start it again.  If this is the case,
you'll also be likely to find the plugs fouled from a rich condition the
last time you did get it to start.  (At least you would on the assumption
of partial blockage before it shut down totally.)

Check that vacuum line.

Hope that helps.  I, like you, am not especially familiar with the ins and
outs of EFI on bikes, and feel pretty well stumped when a puppy like this
goes bad.

Good luck.

Phil