Experienced gardeners share their insights in answering this question :
Hi and welcome to FixYa, I am Kelly.

Headlights are on a separate circuit from the ignition.
What must happen for ignition.
1. Engine crankcase fully serviced with oil (Low oil level sensr will ground ign. if level is low)
2. Operator sitting in seat.
3. Clutch brake pedal fully extended (in some cases fully depressed)
4. PTO clutch disengaged.
5. Key switched to start or run

Check your ignition spark. If you don’t have a 2nd person to help you get a paint stick and staple 2 wires on it with a small gap so you can hold it. Attach one wire to the spark plug cap and attach the other wire to any ground. Just make sure that the wires and the gap are far enough away from you so that you do not get zapped. (wires you use can not be chaffed!)

(Ignition is not fused)

If you do not have spark… first disconnect ONE wire from the oil level sensor and try again. If you have spark.. clean the low oil level sensor INSIDE the holes.
Still no spark you will have to jumper safety switches one at a time until you locate the faulty switch. (Pedal, Seat, PTO)
If you need a wiring diagram I need your mower model number.

Thanks for choosing FixYa,

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

If your car won`t start but the lights come on, it is likely not an issue with your battery so it`s time to turn your attention to your ignition switch. A failed ignition switch won`t be able to supply power to the starter motor, ignition system, and other engine controls, preventing the engine from starting.
Check the Fuses, Fusible Links, and Ignition Switch

If the metal wire inside the plastic casing is severed or damaged, a blown fuse is preventing power from reaching the starter relay or solenoid. You may need a fuse puller to remove the correct fuse and a light source to see its internal components.

Summary. When the ignition is turned on, the onboard computer communicates with the sensors of all the car systems, checking if there are errors. That`s why the lights on the dashboard light up, like a garland on a Christmas tree; it`s part of the test. Usually, the lights go out a second or two after the engine starts …
The vehicle may be having issues with the headlight circuitry. This may mean that the sensor, photocell, body control module, replacement headlight, or a fuse/relay has failed. Something is allowing power to be sent to the headlights when the vehicle should be off.
If you turn the key and nothing happens at all, you definitely have a dead battery. Headlights Won`t Turn On: Not only will your indoor lights not turn on, but your headlights won`t come on either. This means there is no juice left in your battery.
That dreaded clicking noise can usually be traced to the battery, and the fix could be as simple as a jump-start or tightening a cable. Just one click, though, probably means the fault lies with the starter motor (more on that later).
The battery can be fully charged but still not be able to start the vehicle if it is failing or has a dead cell. Other likely issues are the fuel pump, ignition switch, battery cables, starter, or a clogged fuel filter.
Blown Fuse

If there has been a surge, a fuse that controls the fuel pump, the fuel injectors, or another component that`s vital for your car`s functioning, it may be the cause of your car`s failure to start.

Car headlights are powered by the car`s battery when the vehicle is off. After you start the car, the engine begins providing power for all of the car`s electrical systems, including charging the battery. The alternator carries energy from the engine to the electrical components of the vehicle.
Normally headlights on many modern vehicles will turn off a couple of minutes after turning off the engine.
Most car batteries have a capacity of 45 Ah and a vehicle electrical system voltage of 12 volts. So if you have left the interior car lights on all night and two small bulbs with 10 watts continue to burn, the battery will only be empty after 27 hours.
An effective method to determine whether it`s your battery or alternator that`s gone bad is to connect jumper cables from a running vehicle`s battery to yours. After a few moments, try starting your vehicle. Once it`s started, remove the jumper cables — if your engine stalls, your alternator has probably gone bad.
When Your Dashboard Lights Flicker and Your Car Won`t Start. If the car won`t start at all and the dashboard lights are flickering, it`s likely that the battery does not have enough charge to crank over the vehicle. In this scenario, you`ll likely need to replace the failed battery.
The most common sign of a bad headlight relay is headlights that don`t work. A headlight relay will typically fail in the open position, preventing voltage from reaching the headlights. If the low beam relay fails, the low beams won`t work.
It will most likely be under the hood of your vehicle where your main fuse panel is located. However, it may be located inside the cab of the vehicle if you vehicle is equipped with an interior fuse box.
Connect the remote starter switch to the battery positive and the solenoid (smaller wire) terminal on the starter and click the switch. If nothing happens, you`ve got a bad starter. If the starter turns, the problem is in the electrical system.
So can a bad starter drain your battery? The short answer is: Yes, it can. It could also drain the battery even faster if you repeatedly try to start your car with a faulty starter. A faulty starter is also one of the leading causes of battery overcharging.

Discover Relevant Questions and Answers for Your Specific Issue

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Scag tiger cat wont start
ANSWER : I would put new plugs in change the oil put a new in line gas filter in. After this tune-up check for spark by leaving the plug out on the moter body crank it over if the spark is hot you know its a gas problem also check for any grounding by starting it at night then looking around to the engine to see if its grounding out. Try these simple things. Do not change anything on the moter without doing these things first. Good luck

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Exmark 44 Mower bogs down going forward
ANSWER : When you say ‘going forwaed’, is that while mowing or does it do it without the blades engaged or ‘not mowing’?

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Engineer starts, and stop – Mtd 22" Yard Machine Push Mower
ANSWER : Clean fuel system
carburetor main jet, float bowl
check cable/linkage adjustments

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My Honda 160cc lawn mower engine cut out when I hit a large clump of grass. Now I cannot get it to start. Has always started with no problems. What to do?
ANSWER : Has probably broken flywheel key ….. putting it out of time

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My Z5426 won’t start. When I pull out the choke and turn the key, gas starts leaking out of the exhaust system just before it gets to the muffler. Last time it did start, it ran really rough. So, I turn off the engine and then tried to restart and that’s when I noticed the fuel leak.
ANSWER : Maybe bad fuel, fuel line leaking, flooding of the carburetor, since it did start and ran rough I am assuming that the gas was left set and more then likely this gummed up the carburetor, you will have to clean/rebuild it. If you have a can of carburetor clean you may be able to spray that into there and clean it up, I would not choke it to start it as it sounds like it got/is flooded/ing. Good Luck Tim

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On my Timecutter ss5060 it dies when I pull in the drive arms. What could be my problem?
ANSWER : If this is happening while the PTO is operating then your switch is either disconnected, bad, or the wiring to it is broken.

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I have a John Deere L118 Limited Edition (w/ 20 HP B&S engine), which I purchased about 8 years ago. It ran well with few problems up to late this summer. I believe the problem started when I accidentally filled the tank with some stale gasoline – the tractor turned over, but would not start. I drained the fuel tank and filled it with fresh gas, but it still would not start. When I use starter fluid, the tractor starts for 4-5 seconds, and then cuts off. I installed a new fuel filter. The connections in the fuel line seem tight, so while the problem might be the vacuum fuel pump itself, I do not think it is due to a leak in the line. I disconnected the fuel line at the carburetor — fuel flows through the line at start up. But when I put the fuel line directly into the air intake (with some starting fluid), the engine still cuts off in about 4 seconds. I am not sure if the pump simply is not drawing enough fuel into the carburetor. I understand that, if it is a problem with a safety cut-off, the engine would not start at all (even for 4 seconds). My thought was that the problem may be a gummed up carburetor, but that would not explain why the tractor does not start when I feed fuel directly into the carburetor. Any thoughts about other things I can try before bringing the tractor to a mechanic?
ANSWER : Just take the carb bowl off its easy one bolt on the bottom of it get the old gas out flush all old gas out of tank and line then it will run trust me i know

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My Honda lawn mower 3813 is general very easy to start and will start almost immediately when I turn the switch. However there are times that it will not start no matter what I do. When this happens I do not have any spark when I take out the plug and ground it to the frame. When it is starting and working OK I can get a spark. I think that there is a problem with the ignation system. I have taken it to the repair shop or dealer several times but by the time I get it there it starts and they are not able to diagnose the problem. Only once that I have had it stop when I was running it. the problem seems to be more prevelent in cooler weather in spring and fall. When I first turn on the switch I can hear the fuel pump pulsating very rapidly and the as it pumps up will slow down. Sometimes when I turn the switch it will pulsate very slowly, perhaps once every 3 or 4 seconds. I have become aware that when this happens it will not start but when it pulsates rapidly it will start. I do not think it is a fuel problem as I can smell fuel when I choke it and turn it over for a while. I am wondering if it could be a faulty switch or some other electrical problem in which it is not getting a full amperage to the electrical system? I would appreciates any suggestions.
ANSWER : Check to see if your engine has a low oil sensor. Most Honda’s have one. If the oil gets low or you all of a sudden have a bad oil leak, the sensor will kill the fire to the spark plug, saving your engine from running with low or no oil. Sometimes these sensors go out from time to time. It will be on the side of the block with wires coming out of it. Unplug it and check your oil again before doing this test. If your engine continues to run and does not shut off, this sensor is the problem. Good luck.

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