9 Fixes For When Your Lawn Mower Won’t Start. Craftsman push mower carburetor

not getting fuel to carb

cleaned all lines,new gas and filter,new plugs, cleaned and rebuilt carb and fuel pump. still no fuel to carb.

I have a simplicity 7116 model 1987. recently the fuel is not getting into the fuel filter. the fuel tank screen is clean. the hoses to the fuel filter and carburetor are new. and i have tried opening the top of the fuel tank cap to allow air in. we just replaced the fuel filter. any ideas.

have a Briggs Stratton yard machine. Put new carburetor on ,but primer button won’t prime the carburetor. Why? Put anew primer button on it still won’t prime carburetor.


@ednick.Nick, You did not state your model #,, so this will be some what generic answer. Remove gas cap momentarily and see if fuel will flow, vent in gas cap could be plugged not allowing fuel to flow. Remove spark plug, remove fuel line from carburetor and direct line into a container to see if fuel is flowing from pump when engine cranked. If no fuel, pump mat be faulty(check all lines on pump are not plugged and hooked in proper positions securely), line pinched/plugged, tank shut off either not on or plugged, filter plugged or installed back wards(if directional), check for fuel tank internal screen plugged. If fuel flowing the carb. float may be stuck in the closed position or if carburetor equipped with a electric shut off/solenoid it could be faulty/stuck/bad connection. Now if you are getting fuel to carb. and the bowl is filling, either the jets are clogged or you have not adjusted the screws out to the proper settings to allow fuel to flow. See the trouble shooting link/guide below for more info. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.

I have GT5000 craftsman which is not geting fuel to the fuel pump, a new pump was installed n fuel filter n all fuel line were replaced. When engine is turned over, there’s no fuel going into the filter. I disconnect the fuel line to the pump n fuel filled up the filter. But no fuel is flowing to the carburetor.

The carburetor silanoid is working when ignition is on.

What is my next step to resolve the issue.

Change the lawn mower carburetor filter.

Your lawn mower’s air filter guards the carburetor and engine from debris like grass clippings and dirt. When the air filter becomes clogged or too dirty, it can prevent the engine from starting. To keep this from happening, replace paper filters—or clean or replace foam filters—after every 25 hours of engine use.

The process for removing the filter depends on whether you are operating a riding or walk-behind lawn mower. For a riding mower, turn off the engine and engage the parking brake; for a walk-behind mower, pull the spark plug wire from the plug. Then, lift the filter from its housing.

The only choice for paper filters is replacement. If you’re cleaning a foam filter, wash it in a solution of hot water and detergent to loosen grime. Allow it to dry completely, and then wipe fresh motor oil over the filter, replace it in its housing, and power up the mower—this time to the pleasant whirring of an engine in tip-top condition.

Check the spark plug.

Is your lawn mower still being stubborn? The culprit may be the spark plug, which is responsible for creating the spark that ignites the fuel in the engine. If it’s loosened, disconnected, or coated in water or carbon residue, the spark plug may be the cause of your machine’s malfunction.

Locate the spark plug, often found on the front of the mower, and disconnect the spark plug wire, revealing the plug beneath. Use a socket wrench to unscrew the spark plug and remove it.

Check the electrode and insulator. If you see buildup, spray brake cleaner onto the plug, and let it soak for several minutes before wiping it with a clean cloth. Reinstall the spark plug, first by hand, and then with a socket wrench for a final tightening. If the problem persists, consider changing the spark plug.

Clear the mower deck of debris.

The mower’s deck prevents grass clippings from showering into the air like confetti, but it also creates a place for them to collect. Grass clippings can clog the mower deck, especially while mowing a wet lawn, preventing the blade from turning.

If the starter rope seems stuck or is difficult to pull, then it’s probably due to a clogged deck. With the mower safely turned off, tip it over onto its side and examine the underbelly. If there are large clumps of cut grass caught between the blade and deck, use a trowel to scrape these clippings free. When the deck is clean again, set the mower back on its feet and start it up.

Clear the vent in the lawn mower fuel cap.

The mower started just fine, you’ve made the first few passes, then all of a sudden the mower quits. You pull the cord a few times, but the engine just sputters and dies. What’s happening? It could have something to do with the fuel cap. Most mowers have a vented fuel cap. This vent is intended to release pressure, allowing fuel to flow from the tank to the carburetor. Without the vent, the gas fumes inside the tank begin to build up, creating a vacuum that eventually becomes so strong that it stops the flow of fuel.

To find out if this is the problem, remove the gas cap to break the vacuum, then reattach it. The mower should start right up. But if the lawn mower won’t stay running and cuts off again after 10 minutes or so, you’ll need to get a new gas cap.

Clean and refill the lawn mower fuel tank.

An obvious—and often overlooked—reason your mower may not be starting is that the tank is empty or contains gas that is either old or contaminated with excess moisture and dirt. If your gas is more than a month old, use an oil siphon pump to drain it from the tank.

(It’s important to be careful as spilled oil can cause smoking, but there are other reasons this might happen. Read more about what to do when your lawn mower is smoking.)

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Add fuel stabilizer to the tank.

Fill the tank with fresh fuel and a fuel stabilizer to extend the life of the gas and prevent future buildup. A clogged fuel filter is another possible reason for a lawn mower not to start. When the filter is clogged, the engine can’t access the gas that makes the system go. If your mower has a fuel filter (not all do), check to make sure it’s functioning properly.

First, remove the fuel line at the carburetor. Gas should flow out. If it doesn’t, confirm that the fuel shutoff valve isn’t accidentally closed. Then remove the fuel line that’s ahead of the fuel filter inlet. If gas runs out freely, there’s a problem with the fuel filter. Consult your owner’s manual for instructions on replacing the filter and reassembling the mower.

Inspect the safety release mechanism cable.

Your lawn mower’s reluctance to start may have nothing to do with the engine at all but rather with one of the mower’s safety features: the dead man’s control. This colorfully named safety bar must be held in place by the operator for the engine to start or run. When the bar is released, the engine stops. While this mechanism cuts down on the likelihood of horrific lawn mower accidents, it also can be the reason the mower won’t start.

The safety bar of a dead man’s control is attached to a metal cable that connects to the engine’s ignition coil, which is responsible for sending current to the spark plug. If your lawn mower’s engine won’t start, check to see if that cable is damaged or broken. If it is, you’ll need to replace it before the mower will start.

Fortunately, replacing a broken control cable is an easy job. You may, however, have to wait a few days to get the part. Jot down the serial number of your lawn mower, then head to the manufacturer’s website to order a new cable.

How to Clean a Craftsman Riding Lawnmower Carburetor, step by step

You’re all set for a scheduled mowing session to maintain your garden. You happen to notice that your Craftsman lawnmower, a well-known manufacturer, has been misbehaving lately. The engine doesn’t start or doesn’t produce enough power. One of the most common reasons for engine problems is a lousy carburetor that might need cleaning. If you’re a fan of DIY, then you’ve come to the right place as this blog provides you with all the information for both beginner and more experienced users.

How to clean a Craftsman riding lawn mower carburetor, step by step:

How to Remove Replace a Carburetor on a Craftsman Mower

The carburetor is an important component of any engine, as it helps to contain the flow of air that goes into the engine. If you are having trouble controlling the speed of your Craftsman lawn mower, or if the mower won’t move as fast as it should, you may have something wrong with your carburetor. You can manually remove the carburetor at any time to see if it needs to be cleaned or fully replaced. You can purchase a new carburetor part from an online retailer or from a Craftsman manufacturer.

Remove the two bolts holding the muffler, located on the bottom left of the engine, in place by using a socket wrench.

Remove the three bolts from the gas tank on the top of the engine, then pull out the oil stick from the engine.

Lift off the gas tank from the lawn mower, then disconnect the black fuel line from the motor by pulling it out with needle nose pliers.

  • The carburetor is an important component of any engine, as it helps to contain the flow of air that goes into the engine.
  • Remove the two bolts holding the muffler, located on the bottom left of the engine, in place by using a socket wrench.

Set the gas tank down onto its side, and remove the two screws holding the carburetor in at the end of the engine using a Phillips screwdriver.

Push up the two metal linkage rods attached to the top of the carburetor with your hand to unhook them from the engine. Turn and then pull the air filter off of the carburetor.

Place the new carburetor onto the engine in the same position with the linkage rods at the top of the carburetor, and slide the air filter into the back of the carburetor. Hook the linkage rods back into the slots of the bottom of the engine.

Reinsert the two screws into the carburetor, and place the gas tank back onto the mower. Reconnect the fuel link, and reinsert the oil stick into the engine.

Reinsert the three bolts into the gas tank, and reinsert the two bolts to the muffler.