.6 liters
2001 XR100 has about 8.5 Horsepower
there really is no "proper age" for an xr 70. but, most xr 70's are riden by 10-13 year olds.
about 60-65
No, its a 4 stroke.
54
The carburetor is a 22 mm one.
2.5 oz +/- 0.03
I've heard it's about 50 mph.
bout8.5hp
The Honda XR series motorcycles are a range of air-cooled single-cylinder four-stroke 5 XR 250R; 6 XR 250L; 7 XR 350R; 8 XR 400R; 9 XR 500 / XR 500R; 10 XR 600R. They are much smaller in size in comparison to the other bikes in the series and the xr400 had more suspension travel and a longer wheelbase.
About half a quart.