Honda TRX420FA 2009 Owner's Manual page 221

Fuel & Lubricants (cont'd)
cooling system
recommendation
cooling system
capacity
Capacities
passenger capacity
maximum weight
capacity
Engine Specifications
displacement
bore & stroke
compression ratio
spark plug
(standard)
spark plug gap
valve clearance
(cold)
idle speed
Pro Honda HP Coolant or an
equivalent high quality ethylene
glycol antifreeze containing
corrosion protection inhibitors
specifically recommended for use
in aluminum engines
1.6 US qt (1.5 )
operator only
485 lbs (220 kg)
rider, all cargo and accessories
25.6 cu-in (420 cm )
3.41 × 2.81 in (86.5
9.9 : 1
BKR5E-11 (NGK)
or K16PR-U11 (DENSO)
0.039 0.043 in (1.00 1.10 mm) −
intake:
0.006 in (0.15 mm)
exhaust:
0.009 in (0.23 mm)
1,400 ± 100 rpm
Technical Information
Specifications
× 71.5 mm)
−
213