Honda V-Twin Specifications

2/2/2009 12:00:00 PM


Horizontal Vertical

GX630 GX660 GX690 GXV630 GXV660 GXV690
Engine Type
Air-cooled, 4-Stroke, OHV
Air-cooled, 4-Stroke, OHV
Bore x Stroke
3.1" x 2.8" (78 x 72 mm)
3.1" x 2.8" (78 x 72 mm)
Displacement
42 cu in (688 cm3)
42 cu in (688 cm3)
Compression Ratio
9.3 : 1
9.3 : 1
Net Horsepower* 20.3 hp (15.1 kW) 21.0 hp (15.7 kW) 22.3 hp (16.6 kW) 20.3 hp (15.1 kW) 21.0 hp (15.7 kW) 22.3 hp (16.6 kW)
Net Torque* 35.2 lbs ft (47.7 Nm) 35.2 lbs ft (47.7 Nm) 35.6 lbs ft (48.3 Nm) 35.2 lbs ft (47.7 Nm) 35.2 lbs ft (47.7 Nm) 35.6 lbs ft (48.3 Nm)
PTO Shaft Rotation
Counterclockwise (from PTO shaft side)
Counterclockwise (from PTO shaft side)
Ignition System
Digital CDI with variable ignition timing
Digital CDI with variable ignition timing
Starting System
Shift Type
Shift Type
Carburetor
2-barrel, fuel cut solenoid, inner vent
2-barrel, fuel cut solenoid, inner vent
Lubrication System
Full Pressure
Full Pressure
Connecting Rod
Forged Steel
Forged Steel
Governor System
Mechanical
Mechanical
Air Cleaner
Dual Element Type/Cylindrical
Dual Element Type/Panel
Exhaust Emissions
Certified for use in all 50 states
Certified for use in all 50 states
Evaporative Emissions
Low permeation hose and purge joint provided
Low permeation hose and purge joint provided
Oil Capacity
2.0 US qt (1.9 L)
2.3 US qt (2.2 L)
Oil Filter
Automotive Spin-On Style
Automotive Spin-On Style
Dimensions (L x W x H)
15.9" (405 mm) x 16.1" (410 mm) x 17.2" (438 mm)
17.4" (443 mm) x 16.6" (421 mm) x 17.6" (447 mm)
Dry Weight
98 lbs (44.4 kg)
101 lbs (45.7 kg)
* The power rating of the engine indicated in this document is the net power output tested on a production engine (net power) and at 2,500 rpm (Max net torque). Mass production engines may vary from this value. Actual power output for the engine installed in the final machine will vary depending on numerous factors, including the operating speed of the engine in application, environmental conditions, maintenance, and other variables.