I cannot find out where you pull the tension on the carrier. Need help before I f something up.

 

There is a hole in your sprocket hub that will line up with a hole in the carrier, horizontally.
You have a tool in your tool kit that is long and round that goes through the holes and locks the carrier to the sprocket hub. Loosten the 2 pinch bolts at the rear most section of the swing arm, then just roll the tires and the tool will turn the carrier.
The carrier is excentric so you just turn it to loosten or tighten the chain. The chain should have 7/8" obvious free play w/butt in seat.
Hope that helps

 

thanks a bunch!!!! Now if I can get some help on this exhaust situation

 

what is your exhaust situation??