22″ Yard Machine Push Mower
I have a Yard Machine by MTD , changed spark plug and it still wont start, what next
Experienced gardeners share their insights in answering this question :
Possible Causes
Corrective actions
Unit will not start
Control handle is not engaged
Engage control handle
Spark plug wire is disconnected
Connect spark plug wire
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Fuel tank empty or stale fuel
Relawnmower wont start – spacer.gif clean, fresh gas
Blocked fuel line
Clean fuel line
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Faullawnmower wont start – spacer.giflug
Replace, clean, or adjust gap
Engine flooded
Wait to restart, do not prime
Air filter filled with dirt or debris
Replace or clean air filter
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 :
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 Is My Lawnmower Turning Over But Not Starting? 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.
There may be old or bad fuel in the carburetor float bowl. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and prevent the engine from starting. If the carburetor is clogged, try cleaning it with carburetor cleaner.
A dirty or fouled spark plug can cause your lawn mower to not start. It can also work itself loose, causing issues. If the spark plug appears to be seated correctly but the engine doesn`t start, a new one may be in order. For a few dollars, this easy fix can get your small engine working again.
A full gas tank and oil reservoir are the essential first steps when checking why the lawn mower won`t stay running, but the problem could also be a dirty filter, clogged carburetor, improper fuel mixture, or a dirty spark plug.
Use Carburetor Cleaner Fortunately, you can generally do this without even taking the carburetor out of the engine. Start by purchasing some commercial lawnmower carburetor cleanerOpens a new window, which comes in a simple spray can and will make it easy to clean the inside and outside of the carb.
Disconnected, dirty or fouled spark plugs are common causes for engines that won`t start. For small engines, spark plugs typically need to be replaced every season or after 25 hours of use. You should also check to make sure the spark plug gap is set correctly.
Use Carburetor Cleaner Fortunately, you can generally do this without even taking the carburetor out of the engine. Start by purchasing some commercial lawnmower carburetor cleanerOpens a new window, which comes in a simple spray can and will make it easy to clean the inside and outside of the carb.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
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.
Ride on lawnmower lr35 just clicking and wont start
ANSWER : Check battery and starter cables for tightness and corrosion. also battery voltage.
The lawnmower won t start after pulling the start up cord . changed the spark plug it still won t start
ANSWER : Try a touch of starting fluid right into the carburator by taking the air filter off. If it then starts but wont run or stay running, the reservoir below the carb should be removed to clean at and the pinhole in the intake tube above the bowl nut. This is the most common problem with lawnmower start problems, the pinhole can be unplugged with one wire from a wire brush. Be careful with the gas, at least pinch off the gas hose with a vise grips while removing the carb bowl.. Never use a droplight around gasoline.
Strimmer wont start plug very dry when i remove it?
ANSWER : Sounds like the gas is not getting to the cylinder—remove carb and disassemble–make sure all jets are clear and the float valve moves freely.
Wont stay running
ANSWER : Bad fuel or check for water in your fuel! Clean your carb and float bowl. Empty gas
into a clear container, if there is two levels of liquid one of them is
water. Of course make sure you have good spark plug.
Does not run, will start with starting fluid – Mantis 2-Cycle Tiller
ANSWER : You should never use starting fluid on this model.
Add a couple of ounces of 100% acetone (available at Walmart) to some fresh fuel. Attempt to start for several pulls. Let sit for several minutes and repeat until it sounds like it wants to run.
Then watch this video and do it:
http://www.alamia.us/mantis_parts_s/148.htm
Toro personal pace mower will not stay started?
ANSWER : If ir starts and runs for only a few seconds it’s a dirty carb/bad gas. Drain the fuel system and use FRESH gas; change out your fuel supply monthly to avoid “phase separation” issues. If it runs for several minutes and then dies it is possibly a sticking valve. Do a compression check cold and after it stalls to confirm. Hope this helps
Lawnmower starts and dies… where is the main jet for the carb?
ANSWER : Try
cleaning the air filter, then a touch of starting fluid right into the carburator by taking the air
filter off. If it then starts but wont run or stay running, the
reservoir below the carb should be removed to clean at and the pinhole
in the intake tube above the bowl nut. This is the most common problem
with lawnmower start problems, the pinhole can be unplugged with one
wire from a wire brush. Be careful with the gas, at least pinch off the
gas hose with a vise grips while removing the carb bowl.. Never use a
droplight around gasoline. most lawnmowers have no mixture adjustments, so it is a matter of cleaning the carb, tank, gas lines. Some oils in gas mix systems settle and clog after less than one season.
