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the chart shows figures of 10.7 hp-8.0kw with a torque of 19.5 ft/lbs- 26.4nm at 2500rpms ( max net torque)
the chart shows gx390 is 11.7hp (8.7kw) but the torque is the same as the gx340
you can get these figures from world. honda com or by going google and typing in--torque range of honda gx 340 motor at max rpms
10 hp engines running at 2500 rpms will be good for gensets of 5kw continuous out put as most makes run that size engine
Excessive fuel entering the inlet manifold, carby needle and seat not shutting of fuel flow , remove and clean fit new gaskets and needle and seat if worn.
Hi,the quick,but not final fix for this issue is to use a oil additive similar the one-s from the cars,but make sure you are using the one required by the fuel type.The engine is worn out,needs overhaul,soon or later.Good luck,regards
You have a nice setup, lots of power. The honda gx340 has a compression release built into the engine so it should be relatively easy to start. With the pressure pump under load however, it will be very hard to pull the rope. With water connected hold spray gun open so water is running out tip and pull rope to start (for easy start, remove tip from gun) . If it still feels very hard to pull rope while holding gun open, most likely problem with lubrication in pump or engine valves are not adjusted correctly preventing compression release. If you suspect problem, go to store where you purchased the unit or any store that sells gx340 and pull the rope to get a feel of what force is required to start engine and compare to yours. Good luck.
HI, It sounds like it is just stuck on the keyway as these can be very tight. You need to force the pump of evenly on either side and should come of if patient.
I believe it is either one but if you are not sure, stick a screw driver in an see if it comes out with oil on it. Does one not have an oil level stick attached to the cap?
FIRST...check the engine oil level. Some Honda engines have an oil sensor that shuts off the spark if the oil is low. This would also explain it shutting down when it get hot. Check the manual to see how to tell if the oil level is correct. Also, the oil should be brown and transparent, not black. It may need changing.
Post again if this doesn't help :-)
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