Honda CRF250R 2005, Owner'S Manual

Page: 28 / 164

24
Servicing Your Honda
General Competition Maintenance
Handgrips
Always use Honda Hand Grip Cement (U.S.A only) or
Honda Bond A when replacing handgrips.
Throttle Grip
Align the index mark on the throttle grip with the edge of the
throttle cable guide. Left handlebar grip: Align the “
∆
” mark
on the left handlebar grip with the punch mark on the
handlebar.
Refer to the Service Manual for installation
instructions.
For added security, you may choose to safety wire the hand
grips to the handlebar and throttle to prevent the possibility
of them loosening. Position the twisted wire ends away from
your palms and be sure to bend the wire ends well into the
grip rubber so they will not snag your glove.
Throttle Control
Remove the throttle control every few rides, clean the inside
of the drum and the handlebar thoroughly, and apply a light
coating of silicone lubricant. Inspect the cable carefully for
kinks or other damage that may restrict throttle control in
any way. Move the handlebar from lock to lock to be sure
there is no cable interference. Check to be sure the top of the
carburetor is screwed on tight. Make certain the throttle
operation is perfect after servicing and inspecting.
Gaskets
Always use new gaskets when reassembling components.
Cylinder Removal
Put a little grease on the cylinder mounting dowels to
prevent corrosion from dissimilar metals. The tolerances are
quite tight, so it’s important to keep these dowels absolutely
clean (page 65).
Fuel Filter
Periodically drain the fuel from the tank, remove and clean
the fuel valve/filter. Replace the fuel valve O-ring if there
are any signs of damage or deterioration (page 35).
Fuel Contamination
Refer to Fuel System in your Owner’s Manual, page 34, and,
in this supplement, Fuel System , page 34.
Check the fuel lines for deterioration, damage, or leakage.
Replace the fuel lines, if necessary.
Periodically drain the fuel from the tank, remove and clean
the fuel valve and fuel strainer screen. Replace the fuel
valve O-ring if there are any signs of damage or deterioration
(page 35).
Loosen the exterior drain screw and examine the fuel that
flows out of the float bowl. If you notice anything in the
fuel, such as water or dirt, remove the float bowl and inspect
its contents (page 117).
For maximum efficiency, drain and replace fuel that has
remained in your fuel tank for more than a month.
Engine Mounting Bolts
Make sure the engine mounting bolts 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.
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 Dielectoric Grease on all electrical
connections.