Suspension; Front Suspension Inspection - Honda CRF450X 2017 Owner's Manual & Competition Handbook

Suspension

Refer to Safety Precautions on page 25.
Loose, worn, or damaged suspension components
may adversely affect the handling and stability of
your CRF. If any suspension components appear
worn or damaged, see your dealer for further
inspection. Your dealer is qualified to determine
whether or not replacement parts or repairs are
needed.

Front Suspension Inspection

• When your CRF is new, break it in for
approximately 1 hour to ensure that the
suspension has worked in (page 21).
• After break-in, test run your CRF with the
front suspension at the standard setting before
attempting any adjustments.
• For optimum fork performance, we
recommend that you disassemble and clean
the fork after riding your CRF for 3 hours.
See page 113 for fork disassembly.
• Replace the fork oil every 7.5 hours of
running. See page 87 for oil capacity
adjustment after changing the fork oil.
• Replace the damper oil every 22.5 hours of
running. See page 117 for damper fork oil
replacement.
• Use Pro Honda HP Fork Oil 5W or an
equivalent which contains special additives to
assure maximum performance of your CRF's
front suspension.
• Periodically check and clean all front
suspension parts to assure top performance.
Check the dust seals for dust, dirt, and
foreign materials. Check the oil for any
contamination.
84
Servicing Your Honda
17 CRF450X̲31MEY710.indb 84 17 CRF450X̲31MEY710.indb 84
• Refer to Suspension Adjustment Guidelines
(page 131). Make all rebound and
compression damping adjustments in one-
click increments. (Adjusting two or more
clicks at a time may cause you to pass over
the best adjustment.) Test ride after each
adjustment.
• If you become confused about adjustment
settings, return to the standard position and
start over.
• If the fork is still too stiff/soft after adjusting
compression damping, determine which
portion of the travel is still too stiff/soft. This
is an important step that will help you solve
suspension problems.
1. Make sure that the fork protectors (1) and
dust seals (2) are clean and not packed with
mud and dirt.
2. Check for signs of oil leakage. Damaged or
leaking fork seals should be replaced before
your CRF is ridden.
(2)
(1)
(1) fork protector (2) dust seal
3. Inspect the wear rings (3) for wear or
damage. Replace the wear ring if it is 0.08
in (2.0 mm) or flat with the outer tube (4).
When replacing the wear ring, remove the
fork leg (page 113). Install the wear ring with
its end gap (5) facing rearward.
(4)
0.08 in (2.0 mm)
(3)
(3) wear ring (4) outer tube
(3)
(5)
(3) wear rings (5) end gap
4. Make a quick check of fork operation by
locking the front brake and pushing down on
the handlebar several times.
2016/06/08 11:46:01 2016/06/08 11:46:01