Model |
GX160 |
GX200 |
GX390 |
engine type |
Air-cooled four-stroke OHV |
Air-cooled four-stroke OHV |
Air-cooled four-stroke OHV |
Bore x stroke |
68×45mm |
68×54mm |
88×64mm |
shift |
163 cubic centimeters |
196 cubic centimeters |
389 cubic centimeters |
Net Power Output* |
4.8 hp (3.6 kW) @ 3,600 rpm |
5.5 hp (4.1 kW) @ 3,600 rpm |
11.7 hp (8.7 kW) @ 3,600 rpm |
net torque |
7.6 lb-ft (10.3 Nm) @ 2,500 rpm |
9.1 lb-ft (12.4 Nm) @ 2,500 rpm |
19.5 lb-ft (26.4 Nm) @ 2,500 rpm |
PTO shaft rotation |
Counterclockwise (from PTO shaft side) |
Counterclockwise (from PTO shaft side) |
Counterclockwise (from PTO shaft side) |
Compression ratio |
9.0:1 |
8.5:1 |
8.2:1 |
Light/Charging Coil Options |
25W, 50W/1A, 3A, 7A |
25W, 50W/1A, 3A, 7A |
25W, 50W/1A, 3A, 10A, 18A |
carburetor |
Butterfly |
Butterfly |
Butterfly floating |
Ignition system |
transistor magneto |
transistor magneto |
Digital CDI with Variable Timing |
start the system |
recoil starter |
recoil starter |
recoil/electric |
lubrication system |
splash |
splash |
splash |
Speed control system |
Centrifugal machinery |
Mechanical |
Centrifugal mass type |
air purifier |
Duality |
Duality |
Duality |
oil capacity |
0.61 US quarts (0.58 liters) |
0.63 US quarts (0.6 liters) |
1.16 US quarts (1.1 liters) |
Fuel tank capacity |
3.3 US quarts (3.1 liters) |
3.3 US quarts (3.1 liters) |
6.4 US quarts (6.1 liters) |
fuel |
Unleaded Octane 86 or higher |
Unleaded Octane 86 or higher |
Unleaded Octane 86 or higher |
net weight |
33 lbs. (15.1 kg) |
35 lbs. (16.1 kg) |
69 lbs (31.5 kg) |