Optional Parts List - Honda CRF450R 2006 Owner's Manual

These parts and tools may be ordered from your
authorized Honda dealer.
CARBURETOR Remarks
Main jet #158 – #178 (in increments of
(Standard: #168) 2 or 3)
168
Size
Slow jet #38 – #48
(Standard: #42) (in increments of 2 or 3)
Jet Needles
Standard needle: NCYQ
Straight diameter: ø2.745 mm
Jet needle number
Straight diameter (2.745 mm)
Jet needle number Jet needle number
(1/2 clip position
(standard series)
leaner than
standard series,
leaner only at 1/8
to 3/4 throttle)
60.16 mm
NCYN NCVN
Ø2.725 mm
NCYP NCVP
Ø2.735 mm
(standard needle)
NCYQ NCVQ
Ø2.745 mm
NCYR NCVR
Ø2.755 mm
NCVS
NCYS
Ø2.765 mm
FRAME
Driven sprocket
Standard
Optional
Handlebar
lower holder
Standard
Optional
TOOLS
Pin spanner A
Workstand
60.61 mm
Ø2.725 mm
Ø2.735 mm
Ø2.745 mm
Ø2.755 mm
Ø2.765 mm
Remarks
< >: Drive chain links
48 Teeth, Aluminum.
<114>
47 Teeth, Aluminum
<114>
49 Teeth, Aluminum
<114>
3 mm offset
no offset
Remarks
To adjust spring preload.
(two spanners required)
For maintenance

Optional Parts List

FRAME Remarks
Shock spring
308.0 lbf/in (5.50 kgf/mm)
Standard
or
Optional 296.8 lbf/in (5.30 kgf/mm)
Softer
Stiffer 319.2 lbf/in (5.70 kgf/mm)
330.4 lbf/in (5.90 kgf/mm)
Silver
Fork spring 25.76 lbf/in (0.46 kgf/mm)
Standard
2 scribe marks
(aftermarket parts)
Optional 24.64 lbf/in (0.44 kgf/mm)
Softer 3 scribe marks
Stiffer 26.88 lbf/in (0.48 kgf/mm)
4 scribe marks
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.
Technical Information
No mark
(factory products)
Red
Red
paint
(aftermarket parts)
Blue
Pink
151