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#1
03-17-2025, 07:32 PM
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LTX1046 KW fuel solenoid help please
Hi,
I am a newbie to this forum and I have a question about my Cub Cadet fuel solenoid in my LTX1046 kw. I am not getting fuel to the carb and have replaced the fuel pump. Via this forum I believe my fuel solenoid is bad so I removed it and have found the plunger is stuck. I will attempt to post a picture of the solenoid to show the position of where it is stuck. I’ve used WD-40 on it and the plunger will not budge either up or down. It is supposed to “plunge” up and down, correct? I’ve just ordered a replacement solenoid but I’m hoping to get some feedback telling me I am on the correct path. Many thanks in advance! Lisa Chxtoy Canyon Lake, TX 
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#4
03-18-2025, 07:47 AM
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What you have there is actually called an "anti-backfire solenoid".
It's purpose is to shut off fuel thru the carb and into the combustion chamber to prevent backfire and dieseling when you turn off the ignition. Many folks just snip the plunger off with dikes, replace, and go on their merry way.
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#5
03-18-2025, 08:09 AM
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LTX1046 KW fuel solenoid help please
Without the solenoid on an engine, what is the best way to shut it down? Some say to leave the throttle up and turn the key off, others say to idle the engine and then shut it off. Which way is best?
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#6
03-18-2025, 08:25 AM
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When you shut off your car or truck, do you hold the gas pedal half way to the floor and turn off the key?
With, OR without the solenoid, you don't want the engine sucking raw gas into the cylinder once there is no ignition. Obviously if the ignition is killed at high RPM, the engine momentum would do just that. So, best bet is to let it come down to a nice idle first.
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#8
03-20-2025, 07:03 AM
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Just my 2 cents, I would gut off the tip of the plunger and re install it. Then I would put an in line fuel shut off in the fuel line so that you can shut the fuel off when not in use.
__________________
2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL
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#9
03-20-2025, 07:37 AM
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In reality, the plunger does not shut fuel off from entering the carb, it only prevents fuel from going up the tube from the bowl to the throat.
So yes, a shutoff in the line from the tank is the best prevention of a leaky carb, if you have one.
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