Honda CRF250R Owner's Manual page 36

General Competition Maintenance
Steering Head Bearings
Periodically clean, inspect and regrease the steering head
bearings — especially if wet, muddy or extremely dusty
courses are encountered often.
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)
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 an official Honda
Shop Manual.
Use only Cushion Oil SS19 or Ultra CO special-IV.
The fork oil contains special additives to assure maximum
performance of your CRF's front suspension.
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 94).
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 Honda
Thread Lock or an equivalent and tighten to the specified
torque.
28
Servicing Your Honda
Gaskets
Always use new gaskets when reassembling components.
Cylinder head/Cylinder
Put a little grease on the dowel pins of the cylinder head and
cylinder to prevent corrosion from dissimilar metals. The
tolerances are quite tight, so it's important to keep these
dowels absolutely clean (pages 78, 79).
Engine Mounting Bolts and Nuts
Make sure the engine mounting bolts and nuts are tightened to the proper torque
specification. For added peace of mind, remove the nuts, clean the threads, and
apply Honda Thread Lock or an equivalent prior to torquing the nuts.
Fuel Line
Refer to Fuel Line Inspection on page 39.
Check the fuel line for deterioration, damage, or leakage.
Replace the fuel line every year.
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.
Electrical Connectors
Clean electrical connectors and wrap them with electrical tape
to reduce the possibility of unwanted disconnections, water
shorts or corrosion. Additional corrosion protection is offered
by using Honda Dielectric Grease on all electrical
connections.