Honda CRF450L 2019 User Manual

94 Servicing Your Honda
Valve Clearance
13. Check that “T” mark (22) on the primary drive
gear (23) aligns with the index mark (24) on
the right crankcase cover.
14. Rotate the camshaft by rotating the crankshaft
clockwise several times.
15. Measure the intake and exhaust valve
clearances by inserting a feeler gauge (25).
Valve Clearance:
16. Install a new sealing washer (26) and tighten
the cam chain tensioner lifter cover bolt (27).
1. Install the spark plug (page 86).
2. Coat a new O-ring (1) with engine oil and
install it onto the crankshaft hole cap (2).
Apply grease to the crankshaft hole cap
threads. Install and tighten the crankshaft hole
cap to the specified torque:
11 lbf·ft (15 N·m, 1.5 kgf·m)
3. Install the right crankcase over cover
(page 85).
(22) “T” mark
(23) primary drive gear
(24) index mark
(23)
(24)
(22)
IN: 0.004 ± 0.001 in (0.11 ± 0.03 mm)
EX: 0.011 ± 0.001 in (0.28 ± 0.03 mm)
(25) feeler gauge
(26) sealing washer (new)
(27) cam chain tensioner lifter cover bolt
(25)
(25)
Intake side: Exhaust side:
(27)
(26)
Crankshaft Hole Cap Installation
(1) O-ring (new)
(2) crankshaft hole cap
(2)
(1)

Honda CRF450L 2019 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.0:1
Fuel System	Programmed Fuel Injection (PGM-FI), 46mm throttle body
Transmission	6-speed
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	120/80-18
Rake (Caster Angle)	28.5°
Wheelbase	58.9 inches
Seat Height	37.1 inches
Fuel Capacity	2.0 gallons
Ignition	Full transistorized ignition
Ground Clearance	12.4 inches
Front Suspension	49mm inverted fork; 12.0 inches of travel
Rear Suspension	Pro-Link Showa single shock, adjustable spring preload, compression and rebound damping
Front Brake	Single 260mm disc
Curb Weight	289 pounds
Valve Train	Unicam four-valve
Final Drive	Chain
Trail	4.6 inches (118mm)