Bought a blaster and in the bag with the owners manual and the spare key is a little brass looking threaded thing with a hole in it. This is my first quad, so take it easy on me, what the h3ll is it?

 

sounds like at jet to me.

 

Any reason they would send me a spare jet? Is it larger? Am I supposed to use it after the break-in period? I don't get it....

 

just in case you are at a different elevation then what the factory setup is. after breakin do a plug check and make sure your running right. If your not change the jetting. what size does the new jet say on it. your stock will be a 230. if your running to lean you need to go up a size if your too rich you will need to down a size.

 

Thanks for the info... Will check that!