chain
#4
chain
its was tricky for me when i first did it b/c i had no clue but here. on the back of the swing arm there are two 5/8 nut and bolt u need to losen them and on teh right of the sproket there is 2 hole a half a circle and a hole circle put a strong screw driver on somthin like that in it and push the bike forwards until it pops in even farther then just push teh bike fowards of back wards to get the right about of tightness ( you dont want it to tight it will snap )
#7