Question about Craftsman 42 in. Deck 19.5hp Lawn Tractor

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Cant get gas from tank to engine

Lines are clear new filters if i put gas in carb it starts right up

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  • 38 Answers

Check to see if there is a fuel pump diaphram first and rebuild or replace it , otherwise you arent getting any vacuuum in the carb to draw the fuel in.

Posted on Apr 17, 2009

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1 Answer

Gas will not flow from tank to motor while running


Everybody had a crack at this problem, another thing would check is these engines sometimes have a primary fuel filter inside the tank itself. Drain the fuel and gently blow compressed air back through fuel line towards tank then rinse the tank out with fuel, refill and try run engine again

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I have a Craftsman's Gasoline Weedwacker model 358.791580. The weedwacker wouldn't start after priming and choking. I observed the fuel filter inside the gas tank unattached because the fuel l


hello sir,routing fuel line for craftsman,homelite,ryobi,hedge and line trimmers,fuel tank under engine, looking at machine from rear, shall fuel line on left with filter attached goes to bottom port of carb, fuel line from right side coming out of tank with inside tip attached goes to bottom port of primmer bulb,top line on primmer bulb goes to top port of carb, fuel tank under engine,fuel line routing,looking at machine from left side, left fuel line coming out of tank(drain back only) goes to right side small port of primmer bulb, left side larger fuel line from primmer bulb to top port of carb, fuel line coming out of tank (larger line) on the right side with filter attached goes to bottom port of carb, when replacing fuel line it is very important to use the same ID and OD line the homelite takes a special line that is black in color and a bigger size,the bigger line is ID .08-OD140 small line ID3/32 X 3/16.when the lines dissolve small pieces will get in the carb clogging small passages and screen,it is advisable that you clean out carb,and use a new filter.hope this helps,any comments welcome,thank you. if the filter has broken off of the line half way that is where you will run out of fuel, oo

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1983 CJ-7 Had someone put water in gas tank? Blew out lines, rebuilt carb and cleaned out, cleaned tank, gas dryer and new fuel, new fuel filter (clear), new fuel pump,replaced rotor cap, plug wires,...


You put something back the wrong way.....any amount of water in the tank, carb or whatever WILL NOT cause the engine not to fire.....check any wiring/rewiring you did for accuracy

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1 Answer

Had broken gas line, fixed it and now want crank, put new plug in


Check fuel flow to the engine. Make sure fuel line to the carb has fuel filter on the in-tank end and that it is clear. Make sure there is spark at the plug. Make sure your air filter is clean. Make sure the bolts to the engine cylinder and the lower crankcase cover are good and tight. If all the above check out OK, then you may need to remove the carb and clean it. Possible small fuel line particles entered the carb after it broke so the carb may need to be partially disassembled and cleaned. Post back as needed.

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31cc Poulan Pro Weedeater


Sounds as though the fuel filter may be plugged. The filter is in the tank. Take a look, see if it is visible. Remove and replace. Good luck...Lee

Jul 26, 2010 | Poulan 25cc 2-Cycle Gas Powered String...

1 Answer

Runs for five seconds after being tilted up and put back down.


Trash in the tank fuel line outlet. When you tilt it the trash moves and lets some gas in. Set it down and the trash goes back in the hole and shuts off the gas. No pressure to feed fuel so when you pull choke makes it run rich and then starves for gas again. Dump gas, disconnect the line at the carb. Put a clean tube (drinking straw, plastic tube, whatever will fit so you don't get gas in your mouth) in the gas line and blow air into the tank through the filter clearing the obstruction. Reconnect line then see if it runs longer before it shut off. If it does clean the tank and flush the dirt out.
If that doesn't change anything then it has to be a carb diaphragm leaking and it need a rebuild kit and fuel system flush.

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Remove the fuel line from the carb. Drain fuel tank and blow thru fuel line until clear. If you use compressed air be very careful to use LOW pressure. I just use my mouth. reinstall fuel line replace the fuel filter, add a new spark plug for good measure and refill gas tank

You should be chipping away right soon!

Mar 04, 2010 | Garden

1 Answer

Gas in tank wont start unless put gas in carb-then


Hi, being a tiller theres a good possiblity that the line is glogged and if theres a line filter it could be plugged also. Another source of clogging is from old gas, ti can become a little varnished.

Remove the line clear it with compressed air or other source, drain the tank and if theres a line filter - replace it.

Another source could be the air filter - usually a sponge. Replace this as well or clean in a varsol bath. squeeze it out dry, then apply some oil to the input side - helps to catch dirt, etc.

USE safety precautions .

dont forget to vote

Oct 14, 2009 | Garden

1 Answer

How to prep my engine??


Best if you put a half gallon of gas in the tank when it is off the bike. Shake the tank really good then dump the gas into a clear bowl. Probably a lot of rusty trash in the gas. Do this a couple of times to at least give the CARBS a fighting chance to start the bike.
ADD AN IN-LINE FUEL FILTER BEFORE GETTING GAS TO THE CARBS!

To prevent a fire, hook up the air filters to the CARBS. Have a fire extinguisher handy. Trust me on this. I do not want to make hospital calls. Spray starting fluid is fine. Spray into the area of the air filter intake. Don't you dare try to start the motor without first talking to your best buddy motorcycle Guru.

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2 Answers

42 inch Craftsman carburator not getting any gas. You can spray quick start and will will fire. Does gas from tank gravity feed to filter?


gas tank gravity feeds fuel to the carb. if you pull the fuel line from the carb, fuel should flow out of the tube. if it does not, then either the vent hole on the gas cap is plugged or there are contaminents at the bottom of the gas tank preventing fuel from flowing into the fuel line.

Dec 14, 2008 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

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