Honda FourTrax Rancher TRX420FA5 2019 Owner's Manual page 243

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
1.7 US qt (1.6 ℓ)
operator only
485 lb (220 kg)
rider, all cargo and accessories
25.6 cu-in (420 cm
3.4055 × 2.8150 in
(86.500 × 71.500 mm)
9.9 : 1
BKR5E-11 (NGK) or
K16PR-U11 (DENSO)
0.039 – 0.043 in (1.00 – 1.10 mm)
intake:
exhaust:
1,400 ± 100 rpm
(NO ADJUSTMENT)
Specifications
3
)
0.006 in (0.15 mm)
0.009 in (0.23 mm)
Technical Information 233