Ok so ive noticed when I do clutch up wheelies every now and then it would sound like a slight clink when I let out the clutch and it grabs wasn't sure if that was normal sounds of the clutch till now...I went to attempt a 4th gear clutch up and I got a clunk and the chain came off??!?! I pulled over and was able to easily roll the bike back on the chain and I'm thinking to myself this can't be right...how much chain slack an I supposed to have? With the bike at rest I can lift the lowers hanging point of the chain like 4 inches with my finger!! Is this normal? Also while down there I noticed my rear sprocket looks to be really close to my swingarm like the bolts/nuts on the sprocket actually look like they have been cumming into contact with my swingarm as there is a wear spot and even on my chain guard there's a wear spot from the chain that must be coming close... I took pic with my phone but don't know how to post them in here they're too big...?