well, I changed the oil/filter (found out why the front fairing joint keeps coming loose: there's no bolt! musta lost it somewhere between here and there)
I also tightened the chain (yet again... another cotter pin, only like another 200km's since the last one!!! yep, gunna invest in one of those "R" clips

)
ANYWAY.... going from the "scale" on the adjusting bolts or whatever you wunna reference: How far back can I take the rear tyre before i MUST buy a new chain/sprocket set?
Cuz atm, I feel like I'm riding a dragster around!! Okay, not that bad, but damn I got a longer wheelbase now (owner before me had a 190 rear tyre, so he cut the chain guard to fit it, and this is the first time that the tyre is noticable PAST that cut!)
any reccommendations?