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Honda gx 340 will not start

New fuel
new carb
key in flywhell good
good spark
vavles adjusted
low oil senser ok

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Does it have a new Spark plug I have seen them fire and still be bad

Posted on Jul 23, 2009

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5 Answers

Won`t start, good gas, has new plug and good spark, new carb, clean air filter, plenty of oil?


check you have good compression. remove plug and cover hole with a bung( cork of rubber) .
there may be some debris keeping the inlet valve open .
try compressed air to blow out cylinder whilst turning engine over(pull the cord).
reinstall plug and it should fire.

Jul 07, 2015 | 5.5 HP GX160 Engine

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Why won't it idle without choke?


Fuel supply problem somewhere. How is the float adjustment and the float valve? I'd guess the level adjustment is too low.

Mar 28, 2015 | Honda 2005 TRX 400EX

1 Answer

Gx


carburetor float is either bad or sticking.shut fuel off remove fuel bowl 10 mm bolt once removed pull pin out of float and inspect it at the same time re open fuel valve to allow fuel to push any debris the might be still in the port.re install float and test by slightly pushing the float upward and turn fuel on no fuel should drain unless you release the float if float has any fuel inside replace it if not finish putting it together and problem solved:)

Aug 22, 2014 | Honda 11 HP Engine w/electric start - GX...

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Honda GX 240 engine has spark, new carb; won't fire. what do I do?


remove the muffler and try it there is a screen inside the muffler that get carbon build up if it runs with out the muffler pry it open and clean it

May 24, 2012 | Garden

1 Answer

I have a north star generator with gx series Honda motor, I cannot get it to start it is practically brand new been used just a couple of times it is 13000 ppt. I have checked the oil level which is...


If you have spark and you add a splash of to the throat of the cab does it fire briefly?
If the generator has sat for some time the fuel in the float bowl will turn into a varnish like substance (shellac). The residual fuel in the carb will have to be removed. You do this by removing the fuel solenoid (or bowl nut) which ever one youhave that secures the float bowl to the carb. Then take a screw driver and remove the main fuel orifice and remove the debris from the main fuel orifice. Clean the orifice with carb cleaner. DO NOT push anything into the hole! Also spray the brass tube that the main fuel jet screws into with carb cleaner. You should see carb cleaner being sprayed into the throat of the carb.

While the fuel float bowl is removed get a spray can lid and hold it under the carb float. Turn on the fuel selector and the fuel should completely fill the spray can lid in 8 - 10 seconds. If you do not have this amount of fuel flow you need to remove the main fuel line from the carb and re-check fuel flow. If the flow is good here then use carb cleaner in the float needle area to force any debris back out the fuel manufold connection that is now open because you removed the fuel line. If you still do not have fuel flow then check for debris in the fuel tank exit port, the fuel filter, the sediment bowl under the fuel shut off assembly.

Make sure to re-install the main fuel orifice in the treaded area that secures the float bowl in place. .

One more thing to do... just in cause you have a valve that is sticking is to add a few oz of fuel to the spark plug hole and leave the spark plug out. Use the recoil with the ignition switch off and pull the recoil to spin the engine as fast as you can to get rid of the fuel you just added.

If the engine has a fuel solenoid hook it up and and see of it is working as you turn the key / engine switch on and off before you reinstall the float bowl. You make have to hold the case of the solenoid against the engine to make a ground AWAY from any residual fuel for testing. I.e. don't burn up your generator.

The above steps are successful most of the time on generatosr that have sat idle for an extended period. I have been working on generators large and small for over 40 years.

If none of the above steps work; I need your engine model number so I can look up carb data.
GX 340 or GX 370 is not what I need... I need the number that is on the base of the engine usually stamped horizontally on the cran case base near the oil filler port or oil level sensor depending on engine orientation.

Thanks for choosing FixYa.
Kelly

Aug 25, 2011 | Honda Electrical Supplies

1 Answer

I cannot get my honda 2500psi pressure washer to start at all i have changed spark plug and do have spark it has good gas in it and plenty of oil but will not start?


Three things needed for engine to run. Fresh fuel, good spark and good compression. I am assuming that water supply is disconnected for now and that you feel good resistance when you pull the rope indicating that there is compession. For now remove/unplug the low oil alert wire (if your model has one). Use carburator cleaner as fuel for now by spraying fuel directly into carb with air filter removed and choke off (do not flood just spray a little then little more if needed, the engine will only begin to run then stop unless you contine to spray fuel). If the engine does not respond most likely timing belt or plastic cam is cause. GCV series honda engines use timing belt with plastic cam gear. Gx series use metal gear. If the engine responds clean carb. Good luck

Jul 08, 2011 | Honda Garden

1 Answer

Motor will not turn over. Checked air filter compartment to find 2 oz. of oil and filter soaked.


Not sure if you mean engine will not turn at all (locked) or engine will not start. The engine may have been on its side causing this condition. Clean carb and filter of excess oil. Remove spark plug and clean cylinder and plug of oil that may have entered causing locked condition. Replace oil lost from crankcase. With spark plug removed and kill swith on off, pull rope to blow out oil and verify that motor will now turn. If it still does not turn could be lock rod to crank or faulty pump. If engine had very little or no oil in crank and was run, suspect locked crank, however if your engine has oil senser, this condition would have prevented engine from starting. If you mean that engine will not start, low oil senser most likely preventing start due to low oil. Good luck

Apr 04, 2011 | Honda 2500 PSI Gas Pressure Washer

1 Answer

Press. Washer Honda engine gx 390 will not start


did you leave fuel in it from last year, if so remove all fuel from tank, drain carb. (remove float bowl if it doesn't have a drain bolt) put in fresh fuel, check your oil level and you should be good to go. if not, please take it to a qualified tech. for carb. cleaning.

Doc

May 17, 2010 | Karcher G3025OH Pressure Washer

2 Answers

1991 Honda Civic Won't Start


check coil or modulator! good luck

Jun 21, 2009 | 1991 Honda Civic

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