Garden

Smoke coming from motor, slows down
Experienced gardeners share their insights in answering this question :
ASSUMING ITS A TWO STROKE. MIXTURE HAS TOO MUCH OIL IN IT. TRY DIFFERENT MIXTURE,IT’S BOGGING DOWN BECAUSE NOT IGNITING WITH A HIGH CONTENT OF OIL IN IT ON WIDE OPEN THROTTLE. MAY ALSO NEED CARB ADJUSTED. DO NOT MAKE MIXTURE TOO THIN ON OIT,YOU WILL SEIZE UP ENGINE

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 :

What causes lawn mower smoke (and what to do about it) In the majority of cases, a lawnmower engine suddenly bellows out blue or white smoke because oil has spilled onto the engine. The spillage can happen if you added or changed oil and slopped some or overfilled.
Black smoke may indicate that the mower is “running rich,” or burning too much gasoline. Your lawn mower`s carburetor regulates the ratio of gasoline to air mixture. If the carburetor isn`t getting enough air, the mixture has a higher percentage of gasoline, which can create black exhaust smoke.
If it`s clogged, the combustion chamber may not be getting enough oxygen, resulting in a too-rich fuel mixture that will cause the engine to run poorly and even spew smoke. The solution is to change the air filter, a relatively easy task. Blue and white smoke is the result of oil on the engine.
The symptoms that your lawn mower has low oil include making knocking and spluttering sounds while running, quickly becoming overheated, thick black smoke coming out of the mower, an engine that flat-out refuses to start, and damage to internal parts.
If at any point you detect the smell of burning rubber while the engine is in operation, discontinue use immediately. The belts that power the dethatcher mechanism are made of rubber, and this smell indicates that there is stress on the belts causing them to melt while the engine is running.
Blue or white smoke coming from your engine usually indicates burning oil, which can be caused by: Overfilling the crankcase with oil. Incorrect oil grades. Operating engine at greater than a 15 degree angle.
Billowing black smoke is generally a sign that the fuel-air ratio in your engine is too rich. This means that the fuel injectors are either adding too much fuel or that the intake valves aren`t letting enough air in. This could be caused by a leaking fuel injector, a faulty fuel pressure regulator, or a bad air filter.
Common signs include reduced engine performance, black smoke coming from the exhaust, backfiring, overheating, or hard starting.
Many times, this thick smoke is due to the likes of a blown head gasket, damaged cylinder, or a cracked engine block, which is causing coolant to burn. Thick white exhaust smoke usually indicates a coolant leak, which could cause overheating and put your engine at a serious risk of damage.
White Smoke

In extreme cases, you will need to replace your head gasket. At the first sign of white smoke you can try head gasket repair treatment to seal the leak before you do serious damage to your engine.

Spark Plug Issues

Examining the spark plug regularly is essential because a dirty one can cause various problems, and smoking is one of them. If the spark plug is dirty or too old, or if the plug`s gap is too large, it won`t start the mower and will sputter black smoke.

Overfilling a lawn mower oil tank will negatively affect engine performance and possibly prevent the mower from starting. Too much oil in a lawn mower can easily clog the air filter, foul spark plugs, and potentially cause a hydro-lock, which could bend the connection rods in a multi-cylinder mower.
If blue smoke is coming from your lawn mower, it typically means that your machine is burning excess oil. If you wait it out for 10-15 minutes, the blue smoke should soon dissipate. You probably just need to wait until the extra oil burns off.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Lawn scarifier motor runs slow than starts to smoke
ANSWER : What sort of scarifier is it?

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SMOKE AND SPARKS OUT OF ELECTRIC MOTOR ON FLYMO MOWER
ANSWER : No doubt the brushes have decided they need replaced .

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My mowers blades are not turning but the hum of the motor is there and it has a burning smell with smoke coming out of the motor housing unit …help
ANSWER : It sounds like bearings are seized and need to be replaced. Too much attempted use will burn out the field windings and a rewind or new motor will be needed – both costly.

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Continues blowing out white smoke after I start the lawn mower
ANSWER : Hik marie carten…
Normally white smoke coming out of the exaust will me one of two things.
You have overfilled the crankcase with too much oil and it is making the smoke, in which case you can drain the excess oil out and that should elimanate the white smoke.
Or, you have a worn out engine and oil is getting by the rings of the piston and being burnt in the combustion chamber of the engine.Which means engine overhaul, or buy a new mower.
Free answer…Please take time to rate me.

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The motor got hot & smoked so I assume I need a new motor. To open the case one needs a really long shafted Phillips screwdriver. Any ideas of where to get a motor an the long shafted screwdriver?
I live in Minneapolis.
ANSWER : As for the motor two of the best suppliers that I have found are washer specialties or grainger industrial supply. They both have distributors nationwide so you should have no trouble finding one nearby.The screwdriver you can get at auto zone or napa. Hope this helps you. Thanks. For the motor you will need h.p. rating manufacture name voltage rating and shaft diameter. The model number would be helpful to.

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Husqvarna slow in reverse
ANSWER : Check the linkage and make sure that it has full travel

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I understand what you are saying about burning oil out of the cylinder. But the weird thing is that it runs fine at slow and full throttle, doesn’t smoke, but when you put the blades in gear and run for a few minutes, a blue cloud starts, so we shut it down, wait a while and try again, four times we have done the same thing. I’m talking major blue smoke. Wait a while and it ok until mower is enguaged. I’m affraid to keep running after the smoke starts. And remeber, I did tilt the mower when I changed the oil and filter.
ANSWER : Did you overfill the crankcase, sounds to me like the problem, did it do this before you changed the oil ?

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My electric B&D leaf blower started to slow down and I could see a bright arc light in the motor housing. I have had it a few years but only used it about 4 times
ANSWER : Hi, sounds to me like you got worn brushes on your electric motor. On units that you can change brushes easily there is a screw plug that is located where each brush is positioned. This way the brushes can be easily replaced without removing the plastic cover. If your unit does not have this access, then the brushes are probably soldered in. In this case your better off checking the warranty and/or buying a new one because the motor is burnt. You can avoid this problem by using a thicker extension cord that is plugged to a dedicated receptacle. This way the motor will not heat up as much and burn out prematurely.
Hope this helps.

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My name is June Strandberg, and I am a florist and gardener in San Francisco. I have been working in the industry for five years, and I love helping people find the perfect floral arrangement for their special occasions. I am also skilled in troubleshooting and fixing gardening tools, so if you are ever having trouble with your tools, please don't hesitate to reach out to me.