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Suspension Linkage Lubrication
Disassemble, clean, inspect and lubricate all suspension
linkage pivot bearings with grease after each 7.5 hours of
running time in order to maintain proper suspension
performance and minimize component wear.
Swingarm Pivot Lubrication
Clean, inspect and lubricate the swingarm and suspension
linkage pivots with grease. Be sure all of the dust seals are
in good condition.
Swingarm
Do not attempt to weld or otherwise repair a damaged
swingarm. Welding will weaken the swingarm.
Footpegs
Worn footpeg teeth can be repaired by filing the grooves
between the teeth with a triangular shaped file.
Be aware that filing them too sharp will reduce boot sole
lifespan. Sharpen only the points of the teeth. Filing the
grooves deeper will weaken the footpegs. Be sure the pegs
are free to pivot freely and that the pivot pin retaining cotter
pins are in good condition.
Brake Fluid Replacement
Refer to Brake Pad Wear in your Owner’s Manual, page 78.
Brake Caliper Inspection: Be sure both the front and rear
calipers are able to move freely on the caliper bracket pins.
Check pad thickness periodically and replace the pads when
minimum thickness is reached. If the brakes fade when they
are hot, inspect the pads for glazing or damage, and replace
if necessary.
Brake Fluid Replacement: Refer to the Honda Service
Manual (page 148) for brake fluid replacement instructions.
Replace the hydraulic fluid in the brake system every 2
years. Replace the fluid more frequently if you subject your
brakes to severe use. Heavy braking heats the brake fluid
and it may deteriorate sooner than expected. Any type of
riding, that requires frequent use of the brakes, such as in
tight woods, can shorten the service life of brake fluid.
Steering Head Bearings
Periodically clean, inspect and regrease the steering head
bearings — especially if you frequently ride on wet, muddy,
or dusty courses. Use urea based multi-purpose grease
designed for high temperature, high pressure performance
(example: EXCELITE EP2 manufactured by KYODO
YUSHI, Japan or Shell stamina EP2 or equivalent).
Bleed Hole
After every race, check the bleed hole below the water pump
cover for leakage. Clean away any clogged dirt or sand, if
necessary. Check for signs of seal leakage. A small amount
of “coolant weeping” from the bleed hole is normal. If water
leaks through the bleed hole, the mechanical seal is
damaged. If oil leaks through the bleed hole, the oil seal is
damaged. See an official Honda Service Manual or consult
your dealer for replacing the mechanical seal or oil
seal. Both seals should be replaced at the same time.
Fork Oil/Performance
Disassemble, clean and inspect the front fork and replace oil
regularly. Contamination due to the tiny metal particles
produced from the normal action of the fork, as well as
normal oil breakdown, will deteriorate the performance of
the suspension. Refer to the Honda Service Manual (page
148). Use only HP Fork Oil, SS-19 or equivalent which
contains special additives to assure maximum performance
of your CRF’s front suspension.
Frame
Because your CRF is a high-performance machine, the frame
should not be overlooked as part of your overall competition
maintenance program. Periodically inspect the frame
closely for possible cracking or other damage. It makes
good racing sense.
Spokes
Check spoke tension frequently between the first few rides.
As the spokes, spoke nuts and rim contact points seat-in, the
spokes may need to be retightened. Once past this initial
seating-in period, the spokes should hold their tension. Still,
be sure your race maintenance program includes checking
spoke tension and overall wheel condition on a regular basis
(page 79).
Nuts, Bolts, Etc.
Application of a thread locking agent to essential fasteners
offers added assurance and security. Remove the nuts, clean
the threads of both the nuts and bolts, apply Pro Honda
Hondalock or an equivalent and tighten to the specified
torque.
GREASE
GREASE
GREASE
Servicing Your Honda 25
General Competition Maintenance
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