I know to run 32:1 for my actual gas tank on my blaster (the oil injection tank is removed), but for the oil that actually gets put into the engine next to the kick start. 21st do I use for that?
Make sure that it doesn't have friction modifiers and its designed for wet clutches.
Everyone has their own preference. I run Belray GearSaver in my bikes.
650ml of oil no more no less. the bottle will say it on side,dumb a little out to another container till it says 650 then fill it up.If you get it a dealer it will be hard to go wrong,or ask them