Honda CRF450R 2017 Owner's Manual & Competition Handbook page 33

General Competition Maintenance
Handgrips
Always use Honda Bond A, Pro Honda Handgrip Cement
(U.S.A. only) when replacing handgrips.
Refer to an official Honda Service Manual (page 160) for
installation instructions.
Throttle Grip
Right throttle grip: Align the index mark on the throttle grip
with the index mark of the throttle pipe.
Left handlebar grip: Align the index mark on the left
handlebar grip with the paint mark on the handlebar.
For added security, you may choose to bind the handgrips to
the handlebar and throttle pipe with safety wires 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 handgrip rubber so they will not snag your glove.
Throttle Control
Remove the throttle control every few rides, clean the inside
of the throttle pipe and handlebar thoroughly. Inspect the cable
carefully for kinks or other damage that may restrict throttle
control in anyway. Move the handlebar from lock to lock to be
sure there is no cable interference. Make certain the throttle
operation is perfect after servicing and inspecting.
28
Servicing Your Honda
Gaskets
Always use new gaskets when reassembling components.
Engine Mounting Bolts and Nuts
Make sure the engine mounting bolts and nuts are tightened
to the proper torque specification.
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 74, 76).
Fuel Line
Refer to Fuel Line Inspection on page 38.
Check the fuel line for deterioration, damage, or leakage.
Replace the fuel line every year.
Electrical Connectors
Clean electrical connectors and wrap them with electrical
tape to reduce the possibility of unwanted disconnections,
water shorts or corrosion.
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.