When the front sprocket starts to go it's more of a 'clunking' -- very noticeable if you cut the engine, clutch in and roll to a stop.
Easiest way to tell for sure without taking sprocket off is to remove the bolt -- and mark the shaft and sprocket with something-- sharpie will work --- put the bike in 1st gear --- have someone roll it forward until it stops and then backwards until it stops -- do this a few times and watch the marks. On mine I didn't even have to mark it-- it was that visible that it was moving...
From the sounds of your video I don't think it's the sprocket...:thumbup:
BUT -- you might have a belt alignment problem or tension issue.
If you use a Krickett you should read about 180 lbs while the unloaded bike is on the ground --- or 150-160 with it jacked up.
From the looks of your sprocket you have some metal dust on it--- mine had a lot--- I'm sure they all show some-- but a lot of dust means something is wearing. I'd order a sprocket anyway-- they're only like $50 and have it handy. Get another bolt too.
If you have time to do more than the simple 'bolt removal' test --- then I'd jack her up -- pull the lower shock bolt so you can slide the belt off---- then remove the sprocket and take a good look at it and the splines on the shaft. Clean them up a bit and put back together-- try and mark it and put it back in the same position.
You might need a puller to get the sprocket off-- but it really shouldn't take too much force like mine did!
Oh-- and make sure and remove the bolt BEFORE you jack it up----
Hope all is well....and you're sprocket is fine.
Reminder to self to order some sprockets for stock.....
