Any premium 2 cycle oil.
750 Ml or 0,75 Liters
Anything that is high performance 2 stroke oil that's what i use and it works great.
No a yz 250 2 stroke does not but a YZ250F does.
right side crank case
On a dry fill it's 800 mil, for an oil change 750 mil
Probably 10w-40 mobil 1 syn. motorcycle oil. http://www.xbhp.com/talkies/do-yourself/12586-yamaha-fz16-fazer-engine-oil-oil-filter-change.html
According to the Yamaha Service Manual 17.6 US oz/18.3 Imp oz per fork is the standard capacity.
SAE 10w30 oil or Yamaha 4 Stroke Engine Oil
Motor oil
The fork oil capacity for a 1999 Yamaha YZ250 is typically around 10.6 ounces (or approximately 310 milliliters) per fork. However, it's essential to check the owner's manual or service manual for specific recommendations, as capacities may vary slightly based on modifications or specific suspension setups. Always ensure to use the correct type of fork oil as specified by the manufacturer.
500cc of oil
32 to 1 hi i have an 04 yz125 and i use motoul 800 and i mix 10L of fuel to 330 ml of oil