How many horsepower is a Honda GX340?
Features
GX340 | GX390 | |
---|---|---|
Engine Type | Air-cooled 4-stroke OHV | Air-cooled 4-stroke OHV |
Bore x Stroke | 88 X 64 mm | 88 X 64 mm |
Displacement | 389 cm3 | 389 cm3 |
Net Power Output* | 10.7 hp (8.0 kW) @ 3,600 rpm | 11.7 hp (8.7 kW) @ 3,600 rpm |
What is a Honda GX340?

The Honda GX340 is an OHV horizontal shaft lightweight engine. Overhead Valve design offers cooler, fuel-efficient operation and cast iron cylinder sleeve provides longer service life.
How many horsepower is a Honda GX390 motor?
11.7 HP
Specifications
Engine Type | Air-cooled 4-stroke OHV |
---|---|
Displacement | 389 cm3 |
Net Power Output* | 11.7 HP (8.7 kW) @ 3,600 rpm |
Net Torque | 19.5 lb-ft (26.4 Nm) @ 2,500 rpm |
PTO Shaft Rotation | Counterclockwise (from PTO shaft side) |
How do I know if I need a valve adjustment?
When do I need to have a valve adjustment? You should have your valve lash inspected at manufacturers recommended intervals. A sure sign that it’s time for a valve lash adjustment is if your engine is making a loud clicking or tapping noise when starting up or if you experience a loss in engine power.

What type of oil goes in a Honda pressure washer pump?
Honda 10W30 4-Cycle Engine Oil (1 Quart)
How much horsepower is in a GX390 Honda engine?
Specifications
Engine Type | Air-cooled 4-stroke OHV |
---|---|
Bore x Stroke | 88 X 64 mm |
Displacement | 389 cm3 |
Net Power Output* | 11.7 HP (8.7 kW) @ 3,600 rpm |
Net Torque | 19.5 lb-ft (26.4 Nm) @ 2,500 rpm |
Do Honda engines need valve adjustment?
Advantages & Benefits. Be sure to have your Honda valves adjusted at the factory recommended mileage intervals. This simple procedure will help to prevent premature engine failure and costly repairs, and can help to ensure that your engine is running efficiently and quietly for a long time.
Do Hondas really need valve adjustment?
On pre-2006 models, they recommend a valve adjustment at 110,000 miles. And for newer ones, they recommend just listening for noise and adjusting when necessary.
How do you adjust the governor on a Honda gx340?
Loosen the nut on the governor arm and move the governor arm to fully open the throttle. ③. Rotate the governor arm shaft as far as it will go in the same direction the governor arm moved to open the throttle. Tighten the nut on the governor.
What size shaft does a Honda GX240 have?
1″
Shaft: 1″ solid keyed. Bore x stroke: 73 x 58 mm. Displacement: 270 cm3.