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Honda Engine Section


 
 
 
 
 
Click Here For Engine Dimensions
GX610 & GX620 (18.0 & 20.0 h.p.)

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Basic Specs for the 
GX610-670 Models.
Check Out These Other
Great Honda Features:
Model
GX610 K1
GX620 K1
GX670
Engine Type
Air-cooled 4-stroke OHV 90' V-twin Horizontal Shaft
Bore x Stroke
3.0 x 2.6 in (77 x 66 mm)
3.0 x 2.8 in (77 x 72 mm)
Displacement
37.5 cu in (614 cc)
40.9 cu in (670 cc)
Compression Ratio
8.3:1
Maximum  Output
18 hp/3600 rpm (13.2 kW)
20hp/3600rpm (14.9 kW)
24 hp/3600rpm (17.9 kW)
Recommended Output
16.2 hp/3600rpm (12.1 kW)
17.9 hp/3600rpm (13.3 kW)
21.5 hp/3600rpm (17.9 kW)
Maximum Torque
31.7 lbf ft (43.1 Nm)/2500 rpm
32.5 lbf ft (44.1 Nm)/2500 rpm
37.5 lbf ft (50.8 Nm)/ 2500 rpm
Ignition System
Transistorized Magneto
Starting System
(Electric only) or (Electric & Recoil)
Electric
ACG Output
(12v-3a) or (12v-20a)
12volt-20amp
Decompression
Centrifugal
Air Cleaner
Heavy Duty Dual Element
Oil Capacity
1.9 U.S. Qrts. (1.8 liters) w/filter change
2.01 Qrts. (1.9 liters) w/filter 
Fuel Consumption
0.51 lb/HPh (230 g/HPh, 313 g/kWh)
0.59 lb/HPh (269,360)
Dimensions LxWxH
15.3 x 18 x 17.8 inches
16.2 x 18.5 x 18 inches
Dry Weight
92.6 lbs (42 kg)
94.8 lbs (43 kg)
Low Vibration!!
Honda-developed high strength sintered aluminum connecting rods reduce wight in overlap areas to minimize vibration caused by the cylinder offset.

Honda Co. reserves the right to change product specifications, designs,
and standard equipment without notice and without incurring obligation.

This Honda engine information is thought to be completely accurate, but we are not responsible for any mistakes or inaccuracies. We provide this information as a courtesy to help you in deciding which engine is best for your application. Call us if you need more details or if you do not see the engine you need listed.


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