Question about Craftsman 25cc Gas Line Trimmer

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How does a gasline bubble work,does it **** fuel through carby or push fuel into carby

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The gas bubble is a primer. You push it 2 to 3 times to put fuel in the card before you start the motor.

Posted on May 27, 2010


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99 z71 hesitates real bad right after you start it for about 1/2 mile then ok until you shut it off and start it again. doesnt matter if its cold,hot, or already been drivin

what motor..fuel injected or not ? ..any leak under the truck...have to see if its fuel or electronics ...put a clear piece of hose in the gasline too see if you have air bubbles in the fuel......1st try starting it with the fuel cap offf ..see if that does it ..if it cranks for a bit to start you fuel could be flowing back to the tank when not running...but i would guess you gasline has a loose connection pr starting to rot

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How do I tune a carby for a Mitsubishi PM 1500 L Scorpion generator

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1 Answer

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Hi Kristian, Seems like the needle could be stuck inside the seat.... You need to pull your carby off and unscrew the bottom half from the top, 1st sign of a needle stuck inside the seat is a dry carby There you'll find the float, push the float up and down and see if the needle above the float slides up and down from the seat, If the needle stays up then it's stuck and NOT letting the fuel into the carby, Just pull it down with your fingers to loosen it up. I hope this helps.... CHEERS..

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Echo trimmer , new carb , good spark, cleand fuel filter, new fuel, new fuel lines, cleaned spark arrestor,primed and pull , no gas getting to the plug.compression test? What pulls the fuel? Intake?

Hi Ralph, Seems like the problem is where the float and needle meet, The float, needle and seat let the gas into the bottom of the carby and as the gas rises the float rises as well pushing the needle up into the seat slowing the gas flow into the bottom of the carby.... As the motor's using the gas in the bottom of the carby the float's lowering and the needle lowers as well allowing gas into the
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Why does primer bulb suck bubble when pumped on my ryobi 46cc chainsaw

you have a hole in your gasline they dont cost much but finding it is the thing hope this helps

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G'day,was given honda brushcutter 422 that had sat for over 3 years,cleaned plug,magneto,fuel tank,airfilter,carby,exhaust of wasp nest,oil fuel . started after a few pulls with...

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1 Answer

I have a Baldor 6000W generator with a gx340 11hp engine. I have drained the tank and carb and put new gas and sea foam in it. Also I have replaced the spark plug and fuel filter. The engine will...

It sounds like the engine is not getting enough fuel for it to run. First check that you have the fuel tap in the on position. If the fuel tap is on then the carby might be blocked or the needle & seat are not working properly. Turn the fuel tap off. Then take the fuel bowl off. You will then see a plastic float,turn fuel tap on. Fuel then should be flowing from carby. Push the float up and this should stop the fuel from running. Do this a couple of times to ensure that it is working correctly. If all is good after that then turn fuel tap off. Put fuel bowl back on, turn fuel tap on and test. If no luck, turn fuel tap off. Then you will need to take the carby off the motor and clean it using carby cleaner. Be sure to spray cleaner in all holes of carby and blow out carefully with air compressor. Put carby back onto motor and turn fuel tap on and test.

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