Jonway Ranger 250 Manual page 27

3 CHECK BRAKING
《WINDAGE OF BRAKING ROD》
The braking rod must have proper windage. And
it's active is work naturally.
Range of measuring windage:1-2cm
<CHECKING BRAKING OIL>
1.Place the handle bar correctly, check the
braking oil in right fuel tank, and keep it the
position between the up per and under limit.
2.check the meshing of rubber when the braking
reaches the under limit.
3.Please maintain it to the service place when the
rubber worn but not exceed the stated ruler.
4.recommend the braking oil:DOT3