Tenere questions

[dunch]

Hi All,
This is my first proper post to the HUBB and of course I've got a few questions. I'm now the proud owner of a 3AJ Tenere that I collected yesterday and having had a baptism of heavy rain on the M1 at ungodly o'clock this morning (see my blog Special Needs Donkey for further details) I've got a few questions about the bike that I'd like to bounce off you fine folks. It's a long time since I've had to do any work on my own bike so my mechanical and electrical knowledge is limited but I consider it all part of the overland experience and I'm keen to pick up as many skills as required.

My Tenere doesn't like water. Had an embarrassing (or character building depending on how you look at it) incident on the M1 last night, the bike just cut out and refused to start until the rain had stopped for a couple of hours. After an encounter with the Highways Agency and a pleasantly surprising encounter with the police I managed to get the bike home. I'm assuming that the problem is either on the HT system or on the fuel/air system. My guess is electrical. Apart from checking/changing the coil/HT lead, is there anything I can do? If it's fuel/air, apart from checking/chainging the air filter, fuel lines etc, what should I be looking for?

It's not very fast. OK, I wasn't expecting GSXR1100 performance but flat out at 110 Km/h in the slow lane (even though the engine was only running at 4K RPM) is a little less than I expected. I don't think the gearing is at fault, could this be fuel/air or electrical also?

Fuel consumption yesterday was very heavy. I got 280 Km from 22L of fuel. This may well be due to me having the throttle full open trying to keep up with traffic but again, does it suggest a fuel/air problem?

Finally (for now), what's the craic with the two fuel taps? Do I need to use both of them all the time or is one of them "spare"?

Thanks in advance for any comments, I'm headed for South America sometime in December. Quit my job, bought the bike, I just need to organise, urm, everything else now. Hopefully see some of you out there.

Dunc.