Optional Parts; Optional Parts List - Honda CRF450R Owner's Manual

3. OPTIONAL PARTS

OPTIONAL PARTS LIST

These parts and tools may be ordered from your au-
thorized Honda dealer.
CARBURETOR Remarks
Main jet #155 – #175 (in increments of
(Standard: #165) 2 or 3)
Slow jet #38 – #48
(Standard: #42) (in increments of 2 or 3)
Jet Needles
Standard needle: NCYR
Straight diameter: ø2.755 mm
Jet needle number
(standard series)
78.700 mm
58.96 mm
NCYP
Ø2.735 mm
NCYQ
Ø2.745 mm
(standard needle)
NCYR
Ø2.755 mm
NCYS
Ø2.765 mm
NCYT
Ø2.775 mm
10
FRAME
Driven sprocket
Standard
Optional
165
Handlebar
lower holder
Standard
Optional
Front wheel
Standard
Optional
Jet needle number
(1/2 clip position
richer than
standard series.
richer only at 1/8
to 3/4 throttle)
78.250 mm
59.41 mm
NCVP
TOOLS
Ø2.735 mm
Pin spanner A
NCVQ
Ø2.745 mm
Workstand
NCVR
Air gauge
Ø2.755 mm
NCVS
Ø2.765 mm
NCVT
Ø2.775 mm
Remarks
< >: Drive chain links
48 Teeth, Aluminum.
<114>
47 Teeth, Aluminum
<112>
49 Teeth, Aluminum
<114>
3 mm offset
no offset
21 inch
Fork height: 0.3 in (7.0 mm)
(align the index groove with the
top of the upper clamp)
20 inch
• wheel assembly
(except brake disk)
• tire tube
• tire flap
• rim lock (bead stopper)
• front tire
(90/100-20, 90/100-20 M/C)
Fork height: 0 in (0 mm)
(align the top of the fork tube
with the top of the upper clamp)
Remarks
To adjust spring preload.
(two spanners required)
For maintenance
For checking tire air pressure.
FRAME Remarks
Shock spring
Standard
308.0 lbf/in (5.50kgf/mm)
or
Optional
Softer
296.8 lbf/in (5.30kgf/mm)
Stiffer 319.2 lbf/in (5.70kgf/mm)
330.4 lbf/in (5.90kgf/mm)
Fork spring
Standard 26.32 lbf/in (0.47kgf/mm)
Optional
Softer 25.20 lbf/in (0.45kgf/mm)
Stiffer 27.44 lbf/in (0.49kgf/mm)
The standard fork spring and shock spring mounted
on the motorcycle when it leaves the factory are not
marked. Before replacing the springs, be sure to
mark them so they can be distinguished from other
optional springs.
No mark
(factory products)
Red Red
paint
(aftermarket parts)