you will have to loosen your chain to get the old one off and new one on, at least i did. makes it a lot easier to get the chain back on after you get the new sprocket on. Adjusting tenstion is really easy so I just loosen it up a bunch.
Loosen your chain to get enough slack in it so the sprocket can be removed. You will have to bend the lock washer tab on the sprocket, then remove the nut and lock washer and the you will be able to replace your sprocket.
there are 4 allen head bolts on the back of the swinger. (5 or 6mm?) that you loosen. You will see some holes on the swinger right around the rear sprocket. You can stick a screwdriver (or something that vises) into a hole and slowly roll the sprocket over until it wedges against the screwdriver. With a little more pressure you will it start to spin in either direction you want. That rotates the carrier iteslf withing the swingarm and loosens / tightens the chain. :thumbsup:
Wow! What a difference! Thanks for the advice guys, lots of help.
But I still cant get over how much that changes 1st and 2nd. I was able to come to a complete stop while in 1st and didnt even need to hold the clutch in.