Honda CRF450R 2019 User Manual

Subframe
(cont’d)
Servicing Your Honda 43
Subframe
Refer to Important Safety Precautions on page 27.
Removal
1. Remove the seat (page 38).
2. Remove the right and left shrouds (page 39, 41).
3. Remove the right and left mufflers (page 130).
4. Remove the seat support base mounting bolts
(1) and collars (2).
5. Disconnect the starter/ignition relay connector
(3), lift the seat support base (4), and hang it to
the left of the subframe (5).
6. Disconnect the breather tube (6) and IAT
sensor connector (7).
7. Loosen the air cleaner connecting tube clamp
screw (8).
8. Disconnect the negative (–) terminal (9) from
the battery (10).
9. Remove the start magnetic switch stay bolt
(11) and plastic wire band (12).
Pull out the start magnetic switch (13).
Remove the start magnetic switch cover (14).
Remove the battery cable terminal bolt (15)
and disconnect the battery cable terminal (16)
from the start magnetic switch.
(1) seat support base mounting bolts
(2) collars
(3) starter/ignition relay connector
(4) seat support base
(5) subframe
(1)
(2)
(4)
(5)
(3)
(6) breather tube
(7) IAT sensor connector
(8) air cleaner connecting tube clamp screw
(9) negative (–) terminal
(10) battery
(8)
(6)
(7)
(10)
(9)
(11) start magnetic switch stay bolt
(12) wire band
(13) start magnetic switch
(14) start magnetic switch cover
(15) battery cable terminal bolt
(16) battery cable terminal
(16)
(15)
(14)
(13)
(11)
(12)
3RMKE630_CRF450RX-L.book Page 43 Friday, April 5, 2019 5:55 PM

Honda CRF450R 2019 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	13.5:1
Induction	Programmed Fuel Injection (PGM-FI), 46mm throttle body
Ignition	Full transistorized ignition
Final Drive	#520 chain; 13T/49T
Front Brake	Single 260mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	120/80-19
Trail	116mm (4.6 inches)
Wheelbase	58.3 inches
Seat Height	37.8 inches
Ground Clearance	13.0 inches
Valve Train	Unicam
Transmission	5-speed
Rear Suspension	12.4 inches travel
Curb Weight	247 pounds