Honda 2004 XR400R Owner's Manual page 103

Suspension
Low oil levels provide a soft ride. Use a low oil
level for easy terrain and smooth riding
conditions. High oil levels provide a firm ride.
Use a high oil level for heavy loads and rough
riding conditions.
1. Raise the front wheel off the ground by
placing a support block under the engine.
2. Remove the pressure release screws to
release any accumulated air pressure.
3. Remove the fork caps ( ) and springs from
the fork tubes. Inspect the O-rings on the
fork caps and replace them if they are
damaged.
The fork caps are under extreme spring
pressure. Use care when removing the caps
and wear eye and face protection.
94
Servicing Your Honda
1
4. Compress the fork all the way and measure
the oil level ( ) from the top of the tubes. 2
Standard oil level:
4.6 in (116 mm)
To lower the oil level (decrease volume), use
a syringe. Add oil with a graduated beaker
for accurate measurements.
The recommended oil level range is:
3.4 5.1 in (87 129 mm)
Increase or decrease oil in increments of:
0.08 US oz (2.5 cm )
To prevent fork damage, do not fill past the
recommended maximum level.
To prevent poor performance, do not use a
level lower than the recommended minimum.