Honda CRF450R 2017 Owner's Manual & Competition Handbook page 42

Installation
1. Loosely attach the upper and lower ends of the
subframe to the main frame and loosely install
all subframe bolts.
2. Tighten the subframe upper bolts (1) first and
then tighten the lower bolts (2) to the specified
torque:
subframe upper bolts:
24 lbf·ft (32 N·m, 3.3 kgf·m)
subframe lower bolts:
36 lbf·ft (49 N·m, 5.0 kgf·m)
Left side: Right side:
(1)
(2)
(1) subframe upper bolts
(2) subframe lower bolts
3. Connect the air cleaner connecting tube (3) to
the air cleaner box (4) and tighten the air
cleaner connecting tube clamp screw (5) so the
distance between the clamp ends is 0.30 ± 0.06
in (7.5 ± 1.5 mm).
4. Connect the breather tube (6) and IAT sensor
connector (7).
0.30 ± 0.06 in (7.5 ± 1.5 mm)
(6)
(1)
(5)
(2)
(3) (7)
(3) air cleaner connecting tube
(4) air cleaner box
(5) air cleaner connecting tube clamp screw
(6) breather tube
(7) IAT sensor connector
(5)
(4)
5. Install the seat support base (8).
6. Install and tighten the collars (9), washers (10)
and seat support base mounting bolts (11) to
the specified torque:
7 lbf·ft (10 N·m, 1.0 kgf·m)
(8)
(8) seat support base (10) washers
(9) collars (11) seat support base mounting
bolts
7. Install the left and right mufflers (page 113).
8. Install the seat (page 33).
Servicing Your Honda
Subframe
(9)(10)(11)
37