Garden
Changed air filter
Experienced gardeners share their insights in answering this question :
Maybe the tank has gunk? coil could be overheating?
check ht leads got good insulation
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 :
The mower surges when the carburetor sucks air through an unsealed gap in the air intake manifold instead of through the air filter. Dirty carburetor. Clogged fuel jets inside the carburetor commonly cause the lawn mower engine to surge. Clogged jets can`t provide the right mix of air and fuel to the engine.
If your lawnmower`s engine is surging it could be a problem with the carburetor. The carburetor mixes air and fuel to the perfect ratio for combustion. There are passages and nozzles (called jets) that route the fuel through the carburetor. The jets meter the precise amount of fuel that is needed for combustion.
If an engine is not getting enough fuel (this is called “running lean”), due to fuel pressure (regulated by the fuel pump and regulator), restricted fuel injectors, a vacuum leak or really anything that throws off the fuel mixture going in to the engine, this can cause the surge.
The most common reason for a surging lawn mower engine is a blockage in the fuel supply, but there are other possibilities: Bad gas. Bad spark plug. Dirty/faulty carburetor.
Engine surging is usually a warning sign that your car or truck is having combustion problems. Since a vehicle`s ignition wires and spark plugs play a major role in proper engine performance, it is likely time to check your engine`s electrical components.
Surging and Lagging
Another good indication that your spark plugs are dirty or worn is if your vehicle experiences surges of speed, resulting in a jerking acceleration. These surges occur because your spark plugs are not igniting the fuel in your engine at the proper rate, resulting in an uneven speed.
The problem may involve an annoying change (up/down) of engine speed while cruising at a steady pace, a low drop (or even cut-out) at idle or when approaching a stop, a wild high engine speed of several thousand rpm followed by a drop to near zero, etc.
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 this doesn`t work, you might need a new fuel filter.
Why does hunting happen? The most common cause for engine hunting is a blockage in the carburettor. Put simply, this restricts the fuel flow in the carburettor causing the engine to slow down. To try to compensate for this, the engine`s governor opens the throttle to allow more fuel into the engine.
Another feature with automatic vehicles is the speed sensor. This works to trigger the car to shift when a certain speed is reached. If this sensor is not working correctly, your car might not shift gears properly, which can make be the reason why your car revs up and down while driving.
Among the potential underlying causes are vacuum leaks, EGR system malfunctions, malfunctioning oxygen sensors, dirty fuel injectors, fuel pump malfunction, faulty spark plugs, a faulty mass airflow sensor, or a faulty throttle position sensor.
Surging and Lagging
Another good indication that your spark plugs are dirty or worn is if your vehicle experiences surges of speed, resulting in a jerking acceleration. These surges occur because your spark plugs are not igniting the fuel in your engine at the proper rate, resulting in an uneven speed.
The problem may involve an annoying change (up/down) of engine speed while cruising at a steady pace, a low drop (or even cut-out) at idle or when approaching a stop, a wild high engine speed of several thousand rpm followed by a drop to near zero, etc.
The problem may involve an annoying change (up/down) of engine speed while cruising at a steady pace, a low drop (or even cut-out) at idle or when approaching a stop, a wild high engine speed of several thousand rpm followed by a drop to near zero, etc.
There are several reasons that surging occurs. A restriction to flow or fouling in the air/gas system is one possible factor. This could be caused by a dirty charge air cooler, or dirt or contamination on a nozzle ring, for example.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
I just bought a new toro mower. the engine surges in speed about 1/sec. how can i get it to run smoothly?
ANSWER : If this is a brand new mower you could take it to the shop where you purchased it. I will say that newer units are set to run pretty lean to meet emission standards and may surge a bit when not under a load. You could take a look at the carb and see if there are any adjustment screws visible. A minor turn with a screwdriver may solve your problem, probably turn the screw out about 1/4 turn or so, just until the surging stops. Many of the new machines today do not have any owner adjustable parts. If you don’t feel comfortable trying this, please supply a model number off the mower and more info might be available.
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Mower won’t start. Toro mower..engine won’t turn over. Cleaned sparkplug…checked air filter..weather cool. Followed instructions for cold engine…prime witrh three pushes of the bulb..wnon’t even hint at a start..
ANSWER : Something everyone over looks is oil. Did you check the oil? You seemed to mention everything else but. If you have a low oil switch with low oil it will not start
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This is only the second time I have used my Toro lawnmower and it won’t start. I have pulled and pulled, can’t find a primer button, checked the gas and oil (everything is fine) but it still won’t work.
ANSWER : Only the second use?? Take it back where you bought it and ask them to demonstrate for you.
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I forgot to add oil to my toro ccr powerlite e. should i remove the gas and start all over again?
ANSWER : !!!!!! dran the gas put in the neww mix gas and pray for the best
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I was able to start my 5HP Toro but it is running rough. It wouldn’t start at first so I drained the gas and put in fresh. After several pulls it started. I started it because we are expecting a snow storm. The way it is running I’m fear that when it has a load on it will die out. Is there something I can do to clear up the problem?
Toro 5 HP Snow Thrower – Couldn’t find on product list so I put in lawn mower.
ANSWER : Try taking off the fuel bowl and check for debris or ice in it.If there is hardly any fuel in it you may have a plugged or pinched fuel line,try blowing back through it[might get a littl gas in your mouth],turn off the fuel and remove the line at the carb and the tank.If niether of these pick up a new spark plug and try that.
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Why my blade wont engage on my toro 74370 zeroturn mower
ANSWER : It has an electromagnetic clutch switch on it,that is more than likely bad. Try this,pull the pto switch out and start the engine,then disconnect the 2 wires coming from the switch and just tap them together and see if they will come on. If they do then you need to replace that switch.
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Snow blower wont start
ANSWER : Clean the fuel out and the carb , make sure you are getting spark close the choke to start then shut if off or it will foul the plug
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My Toro GTS 6 hp lawnmower won’t start
ANSWER : Yes the coil
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