The DR isn’t too much different from its older sister GV250Ei , but it is mostly in Japan, the UK has never seen a DR model and probably won’t unless it gets EURO5/6 certification and some EU importers are only doing GV125-S/GV300-S models for now. it’s wild. Hence i never got the manual yet but i’ll try to dig for one! or even ask my wholesellers who give us parts. The main importer in UK is Sinnis Bikes , they do not even have a DR or GV300S , they are doing 125cc for now, it is slow!
Why not let us know what parts you would like to change or service ? – I very much doubt korea would change their rules too much on DR vs Ei , because DR still uses oil cooler from its older sister and still uses same engine valve heads (cylinder heads). This means “some” of the service manual rules for the older models can still apply to the DR model