Yes, I've lost my one and only key  .
Can anyone help with a source of a new or second hand one (cheap!) and a rundown of how to remove/replace it. Also, how do I get under the seat now to replace that lock? Any help greatly appreciated, thanks.

That is why I had 2 more keys made when I bought my bike! 

The easiest thing to do is take your title and license to the Suzuki dealer the bike came from and they'll make new keys for you.  I don't know what they'll charge, but it's better than hunting down an ignition and seat lock and changing it.

Or get ahold of a good lock smith that can make you new keys without the original.

Dealer did that for $5 for me from VIN numbers. Sometimes they may not be able to, or may be incompetent or may need a beating.
Lock smith was 95 bucks and they only do house calls. I have one savage that suzuki may not give out frame numbers to locks neck locks. I have its ignition keys just fine.
Cool.
Buddha.

Ja, I was told that by a dealer - for some reason, they can't do steering lock keys on bikes with neck locks (this about a DR-Z).  But regular keys, no prob.

So, what is a 'neck lock' and does that apply to the GS?
This is all going to take a while, can anyone help with how to get under the seat to get to the wiring and my tools, also can I get the fuel cap open without wrecking it?

It's a lock on the steering stem with a separate key, and no, it doesn't apply to the GS.  Get the dealer to make you a new key, and then make copies and don't keep them on the same ring.  Take the bus or hitch a ride until they open.

I think the locks on the GS are pickable, but without a set of lock pics just get a ride to the dealer.  I once rented an apartment from a locksmith.  He taught me how to pick locks.  With a little practice I was able to pick my way into my Honda Civic in 11 seconds! 

Turned out there's a locksmith around the corner from where the bike is, so I pushed it over there this afternoon and he said he'd have some keys cut for me tomorrow if all goes OK. He's a biker too, pushed it into the shop (where it took up most of the free floor space) and said it would be locked up safely overnight. Fingers crossed!

they can also be started with a paperclip ( for future refrences)

Quote from: bill14224 on March 22, 2009, 11:19:49 AM
I think the locks on the GS are pickable, but without a set of lock pics just get a ride to the dealer.  I once rented an apartment from a locksmith.  He taught me how to pick locks.  With a little practice I was able to pick my way into my Honda Civic in 11 seconds! 

Yeah, I picked up a set of lock picks a while back and was totally amazed at how easy it is to pick your average lock. I could pick the door to my apartment and all the padlocks I own on the first day without too much trouble. Ever since then I've never looked at locks the same way. I guess it isn't about preventing people from getting in, it is about being slightly harder to get into than your neighbor... Anyone with a bit of determination and a couple of tools can open whatever lock they please. Doubly so for the US. Everyone here has stupid kwikset locks that any 4 year old with a bump key could open in 5 seconds. When I visited Europe, I noticed they get way cooler locks than we do.

OK! Happy ending, I got 2 keys for the bike plus 2 for the topbox after they picked the locks on the 'box and the seat. Apparently they picked the fuel cap lock but for some reason that didn't help, so he tried the seat lock. Even though it has fewer tumblers than the ignition, the key fit the ignition and fuel cap as well. He said that was lucky otherwise it would have been big bucks to dismantle the ignition lock. Total cost $88.00.
Spare key is now in a safe place!
Interesting point, I was never asked for ID or proof of ownership!!

Yeah, I wouldn't expect them to ask for proof of ownership either. I'm sure they figure if you're trying to rekey a lock, you must not have stolen the bike. By the time you actually have the vehicle in your possession, it is too late for them to do much about it.  A thief would probably either pop the lock and just hotwire it, or if they were interested in resale, they'd just get a new ignition. The locksmiths probably also just profile people. If you look super shady and bring vehicles in all the time to get keys made, perhaps they'd be more likely to ask for some kind of proof of ownership.