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Sticky fuel pin

Was having probs with lean running gen so took carb apart and cleaned and adjusted float level up. When testing float and pin operation noticed that pin didnt always free fall with gravity..needed a little shake. Made sure pin was clean and q tipped seat. Is that a problem or does it need fuel flow as lube to keep the pin moving freely.

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  • jay-bee62 Feb 15, 2009

    needle appears to be working ok with fuel connected; i still need to bend tang a little more to get fuel level / mixture just right. thks for the info..jb


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By pin I am guessing you are describing the needle? Some carbs have a small tang on the float that connects the needle to the float with a small wire spring while others just push against each other. I would take the carb off the engine and hook up a fuel hose with a small bottle that is higher than the carb and with the bowl off manipulate the float up and down and be sure the fuel flows freely when the float drops and frees the needle. If this does not happen-try more cleaning but a new carb may be necessary.

Posted on Feb 03, 2009

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Hi I am Kelly,
I read that you did a carb cleaning. Remove the fuel float bowl again. In the area of the float bowl nut threads is the main fuel jet orifice and fuel tube. Break off a toothpick and use the BLUNT end up inside the threaded area in a twisting manner to wipe any debis from the main fuel orifice. Also if you remove the air filter and look in the throat of the carb. There is a brass tube at the 6 o'clock position. Spray that with carb cleaner and watch for carb cleaner to come out of the main fuel orifice in the threaded area. Once you have done this youshould check fuel flow. Get a spary paint can lid and place it under the carb / float. Turn on the fuel and watch fuel flow. It should fill the spray paint can lid in about 10 seconds. If you do not have good fuel flow then you will need to inspect the main fuel supply at the carb connection. It should really be a rapid rate from the fuel hose coming form the tank. Low flow here you must inspect the tank exit port, fuel shut off and any in line filters. Good flow here but low flow under the float... you need to spray carb cleaner UP beside the float needle with the mainfuel hose removed to get any debris out of the needle and seat area. Then spray from the main fuel line connection DOWN through the float needle and seat. Reconnect the main fuel ine and test flow. Once you have good fuel flow re-install the float bowl and attempt a start.

If you have the same result... read this:
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Hi Chuck and welcome to FixYa, I am Kelly.

First off will it fire over if you add a splash of gas to the throat of the carb?
No = you probably have a stuck valve. I just add gas straight to the spark plug hole and slowly pull the recoil through with the ignition off. Most of the time it works to free sticky valve stems after 2 or 3 cycles of adding gas and slowly pulling the recoil through. Then you have to place rags on the cylinder head to catch all of that gas as you pull the recoil through rapidly for expell the gas. WIPE up any residual fuel before attempting a start.

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Yes it fires: SEE BELOW

If this unit had been sitting for some time there are some things you should do: (I note you said you cleaned the carb but the steps below are what need done on a unit that was idle for an extended period)
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b. Reassemble and test.

This USUALLY does the trick... if not I need the model number of your generator that starts with a "P" so I can look up the engine and carb data.

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Hi and welcome to FixYa, I am Kelly

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