S-P is the expert on getting keys made.  Evidently there is a number on the ignition swith that is hidden by some black tape.  Look up his thread....or he can chine in later.

You should pull the vacuum line that goes from the petcock over to the carb that has a wire spring around it.  Pull that off....and if there is gasoline in it the petcock is toast.  You need to order the proper Yamaha part for the 660 Raptor....not a chinese replacement.  If you choose to buy it from eBay.....make sure you see the box from Yamaha and the correct part number.

Look into the fuel tank.....if it is rusty and junky....then it needs cleaned and your carb probably does also.

You don't have a head gasket problem......no one does.  If you have an oil leak at the top of the cylinder it is the head plug.

The Yamaha number for the petock is 5LP-24500-01-00.  You can get it online from places like Bike Bandit, Ron Ayers....or your local Yamaha Dealer.  Prices should be in the $ 18 - $ 24 range.

Since you don't have a key.....you have not tried to start it or have not heard it run?

Several things going on here.
I'd order the petcock, tear down the carb and clean it, and pull the ig switch and take it to a lock smith to make a key.

On the bottom of the ig switch (as viewed when installed on the bike) might be a stamped number starting with a letter and several numbers.  It might be covered by a black strip.  A key can be made from that number.

cylinder flooding can be caused by a bad petcock alone or a bad petcock and a bad float valve in combination.  which is why I recommend the replace petcock and clean carb both.  If it's been sitting for a year, cleaning will probably needed anyway.  Check the float valve in particular.

for the short term, you can pull the ig switch and jump all the terminals together for it to run.  I don't think any are ground.    which would be black with a white stripe.

next thing you should be aware of, don't run the starter for a long time.  No more than a minute on, 15 minutes off.  feel the starter, it should not be hot.

And if while starting, the volts drop below 10v, it's not going to start.
And if it drops to point it just clicks rapidly, you've gone way to far.

Read the following articles and if hubby is going to work on it, either list out the things mentioned or have him read it.  Some it going to be redundant.
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1344399573
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1366651397
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1295653542

I think this is the ig switch connector...


If so, then there's no ground, just jumper all the leads together.

[quote do I just get other keys made by looking up the make and model etc or do I need to switch out the ignition?

KEYS! I JUST went through that.  OK... pull the ignition switch and on the cylinder there is a piece of black tape. The key number is embossed ON that piece of tape. You have to get in the right light to see it.  A good locksmith or Suzuki dealer will charge you about 20-25.00 to make a key.
Free bike!!??? Wow! Awesome!

Thanks yall!!! Definitely will look over these links and try to accomplish this ourselves. Replace petcock,  clean carb.. probably check all lines too.

I dont recommend the Rapture petcock,, you may just disappear if ya run it outta GAS!  Go with the Raptor unit.,,that way ya just turn into a carnivorous bird.