Honda gx610 on a ditch witch 1820 trencher.


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Old 04-20-21, 06:28 AM
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Angry Honda gx610 on a ditch witch 1820 trencher.

Hey guys, I have a Honda gx610, shuts off after 5 minutes of full throttle. engine feels hot when it shuts off. did some research, I replaced carb, fuel lines and pump, coils, plugs, air and fuel filters, and brand new gas. oil is new and full. fuel solenoid is on when key is on. Fuel solenoid is still on after stall. Getting power at oil sender. fuses are good. It will idle all day. but at full throttle it dies after 3-5 minutes. I need help!!!!!
 
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Old 04-20-21, 07:48 AM
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Try running it with the fuel cap loose the vent may be clogged and not letting air into the tank. Have a good one. Geo
 
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Old 04-20-21, 08:55 AM
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Geogrubb. i did that also.
 
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Old 04-20-21, 09:29 AM
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How does it quit? Does it completely die like you turned off the switch or does it bog down or miss before it dies?
 
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Old 04-20-21, 09:51 AM
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Pilot Dane...so it runs wide open, then surges twice and the arm that comes out of the crank case and attaches to the carb linkage completely closes, killing the engine, i uploaded a video on YouTube. Look up JL Motorsports on YouTube.
 
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Old 04-20-21, 10:27 AM
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That sounds like the fuel delivery to the carburetor is restricted. You can verify that by closing off the fuel line to the carb when it dies and check the float bowl for fuel. You may have some blockage in the tank giving it fits.
 
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Old 04-20-21, 11:05 AM
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I agree, take the bowl off and observe the fuel flow. I bet it's a tiny trickle.
 
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Old 04-20-21, 12:09 PM
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So there's plenty of fuel getting into the bowl. and the fuel solenoid on the bottom of the carb is working. all new gas lines. and still shuts off... enough fuel is pouring out that it would probably fill the bowl in 2-3 seconds. man this sucks lol. there is a engine shut off diode, do you think it can be reacting when the engine gets hot? is there a thermal switch that shuts the engine off at a certain temp??? im also going to change the oil sensor for sits and giggles.. thanks for your responses guys!!!
 
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Old 04-20-21, 01:52 PM
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When it died you closed the line to the carburetor and took the bowl off and it was full of fuel?

The way it raced right before dying indicates it ran out of fuel.
 
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Old 04-20-21, 01:59 PM
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I would not replace the oil sensor just yet. They are pretty reliable so I wouldn't replace it without good reason. If you are sure the engine has the proper amount of oil just unplug it.
 
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Old 04-20-21, 03:28 PM
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the gx610 uses a plastic flywheel fan they will fail and blow into pieces thus no cooling it will get hot and shut down!
 
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Old 04-21-21, 06:24 AM
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Hey guys, so I ran it wide open and it stalled. After it stalled out I clamped fuel line and took the bowl off and...…Its empty.....Where the fuel line goes into the tank there is a rubber grommet. it is NOT leaking fuel but, could it be sucking air??? The flywheel fan is intact and clean.
 
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Old 04-21-21, 08:01 AM
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It shouldn't suck air unless the fuel cap isn't venting properly.
 
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Old 04-21-21, 08:36 AM
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Does your fuel line to the pump enter the tank from the top or bottom of the tank. If it enters from from the top, pull the line out of the tank. That line could have a break in it inside the tank.
 
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Old 04-21-21, 09:46 AM
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The line goes to the rear side of the tank. and I've tried running it with no cap and it still stalls. i checked the fitting coming out of the tank, cleaned it and sealed the rubber grommet to the tank and sealed the fitting to the grommet. we shall see what happens. I also noticed a lot of pressure comes out of the valve cover when I take the oil cap off... is this normal?
 
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Old 04-21-21, 09:57 AM
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You have blow by in the crankcase which is normal to an extent.

If your work on the tank isn't productive, I would take the line completely out of the tank, check it for breaks of any type or just replace it. With a new pump that suction line to the pump would have to be the problem.

Or you could just fill the tank completely full of gas and see how it ran. If it did OK you would know you covered an air leak in the line and replacing the line would fix it.
 
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Old 04-21-21, 10:25 AM
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its all new line but ill run one through the filler neck and see what happens. the grommet seal job didn't work.
 
 

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