Toro

Hubby bypassed the solenoid and it started turning over but still won’t start.
Experienced gardeners share their insights in answering this question :
Could be a safety switch has failed of fuel pump /filter, link to owners manual

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A dirty carburetor is the most common cause of a Toro lawn mower won`t start. Other possible reasons include the following: Fuel Valve Off. Choke Not On.
Your Mower Won`t Start:

Other possible causes include: Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas.

If you pull the cord and hear your engine turn over, but your mower is not starting, the most common reasons for this are low fuel, a broken gas valve, or a bad choke fault. A broker spark plug could also be the culprit. You may also have to change the fuel pump if it does not get fuel to the ignition system.
Two thousand hours is generally the number you`ll hit without any major repairs.
Simply settle the mower on a level surface, wait 15 to 20 minutes to allow the gasoline to evaporate and try starting the mower again without engaging the choke, instructs This Old House. If you need to act more quickly, remove the spark plug cover and dry it well before trying to start the mower again.
The drive wheels of a zero turn mower are controlled by two independent wheel motors. The ability for one wheel of the mower to turn forward while the other wheel moves in reverse is what allows the mower to turn in a zero-degree radius. Operators can make the wheels move in the same or different directions.
Why is my lawn mower turning over but not starting? The most likely reason is bad gas. Gas that sits for many months during the off-season will eventually break down, gumming up the fuel line and carburetor in the engine and preventing it from starting.
Why is my lawn mower turning over but not starting? The most likely reason is bad gas. Gas that sits for many months during the off-season will eventually break down, gumming up the fuel line and carburetor in the engine and preventing it from starting.
If the engine starter motor turns over, the starter solenoid needs to be replaced. If the engine starter motor does not turn over once a jumper wire is connected to the two large lugs on the starter solenoid, replace the engine starter motor.

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Mower won’t start
ANSWER : This may sound stupid but don’t mean it to…
Have you tried with the choke all the way open? Do you have an automatic cruise? Is the right (correct) pedal being pushed in? These will affect if it starts or not. Also if your drive belt or one of the other belts not being tight enough will affect if it starts or just turns over. Not too many things can stope it from starting with new/good battery AND if its getting gas. Try cleaning your gas line and obviously making sure there is no obstruction around or near your blade, if it does start with blade engaged that is :))
If it doesn’t start with blade engaged, well make sure it’s in neutral. Mine won’t start in reverse but will in forward or neutral.

Hope it helps.

Anthony

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Toro 149cc Lawn Mower Won't Start – Toro Lawn Mower With Toro Power Tools
ANSWER : Bad carburetor your old fuel jammed up the jet so it won’t get fuel and if it does it will start and shut off So replace the carb or try to clean the jet and run non oxy fuel only

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My mower will start but won't stay running – Toro LX466 22HP Lawn Tractor 13RT61RH244
ANSWER : I am going to respond 2 times to this post. The first reply will be generic things to check.
First off check the oil level and make sure it is serviced to full.
If your having a lack of fuel (runing lean) you will need to check fuel flow at the carb fuel mainfold. It should fill a spray paint can lid in less than 10 seconds but teting flow rated of the main fuel line. If you have poor flow here… you need to check the fuel filter and the fuel tank outlet port for obstructions.

Good Fuel flow still shutting off…. remove the carb float bow and clean the debris from the bow’ and the treaded area where the fuel solenoid mounts Additionally you will have to again remove the main fuel line and spray carb cleaner in the float needle area to flush out any debris through the fuel hose connection.

For the second response I need to know which engine is installed on your mower by MODEL number if you can locate it. (there are 3 engines) At least try to find the engine model number. If you can not locate it Brand and HP of the engine (I assume 22 hp) Thanks for choosing FixYa,
Kelly

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Won't start – Echo Pb – 413t Backpack Blower
ANSWER : Adjust the carb,altitude can effect the engine

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Won't seal and hold pressure – Ace Hardware Acer Spray and Go Sprayer
ANSWER : Try smearing some Vaseline on the gasket that goes around the pump shaft at the top.

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B&S Quantum Power 4hp won’t start with fresh plug,
ANSWER : Did it run before you changed the plug?Gap is correct, flywheel shear pin may be bad, Water in the Gas?

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WON,T TURN OVER EVEN WITH BATTREY CHARGER ON MAKES A WHINING NOISE WHEN I TRY TO START
ANSWER : Sometimes the gear isn’t stripped but the shaft is dry; try using some WD40 on the shaft to loosen then grease it to keep it from drying out again.

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My engine is leaking oil down the shaft so much so that when filled with oil the oil simply drains out and the lawnmower won’t start could you tell me what might be the cause and if so how can I fix
ANSWER : There is a crankshaft seal at the bottom of the case/crankshaft area that can be pulled and replaced. Using a pick or drilling a small hole in the seal and then screwing a small screw into the hole will faciltate seal removal

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