Yup the machine is minty and mostly stock, i bought the lt500r already 95 % restored last year and never noticed a problem. Till i saw there was a bow in the what was already a new sprocket from uneven pressure.

Since then i ordered one from RMATV primary drive, and one alloy one off ebay, affco or something like that.

The hub is a ruff casted maybe the guy who restored it borrowed it off another machine like a 250r or something weird.

The orginal sprocket got four square rub marks on it, form not fitting right id say its 4-5mm off total 2.5mm of each corner.

I cant seem to fine any used hubs on ebay, other that one crusty one, so I will just have to fork out more $$$ for a new OEM one maybe. Just hope it fixes my problem I will take a pic this weekend