According to the Honda 1984 XR500R Owner's Guide, the engine oil capacity is 2.1 US quarts after draining.
intake .004" exhaust .005" is the correct valve clearence for a 1984 xr500r.
Always use the Honda brand oil. 10-40.
A Honda 1982 Honda xr500r goes about 85 mph.
At servicing/oil change I use approximately 6 litres of engine oil
The XT 250 takes 1.3 liters of oil.
When I get my oil changed it is just shy of 8 quarts on my 1984 190 D.
The 3.2 engine used in year 1984-1989 uses 10.4 Quarts of oil.
left fork capacity is 495cc and the left is 470cc on a 1984-1985 vf1100c sabre ,this is what i found in the clymer book