Just been given mountfield mower. It fires ok but chuggs as if it is still on choke. Any idea’s??
Experienced gardeners share their insights in answering this question :
Excess air. Remove clean or replace 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 :
Clogged or Dirty Air Filters
It is one of the most common problems that cause lawnmowers to sputter. The mowers take the air from the surrounding through air filters and mix it with fuel inside the engine. So, if the air filter is clogged or dirty, it will affect the flow of air into the carburetor.
Clogged or Dirty Air Filters
Dirty air filters are one of the most common reasons lawn mowers sputter. Dirt can be present in the apertures that lead from the carburetor and the fuel filter and interrupt the flow of fuel supply to the combustion chamber. You want to be sure to clean or replace dirty air filters.
The fault could be a dirty spark plug, air filter or carburetor, or it could be related to the quality of the gasoline used. Slow starting can also be the result of a failure to clean the blades. In most cases, you should be able to restore performance yourself.
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.
The most common cause of excessive vibration is an unbalanced blade. If you`ve recently had your blade sharpened, it`s possible the blade hasn`t been properly balanced during the sharpening process. To fix this, the blade should be removed, rebalanced and refitted.
If the riding mower makes a heavy clicking or a rapid clattering sound when the key is turned to the start position, there is a problem with the battery or a part of the starting circuit. The clicking noise comes from a part called the starter solenoid.
A sputtering engine means that it is not achieving full combustion. It could be the sign of a very simple problem or it could be a symptom of a much more concerning engine, fuel system or exhaust system issue.
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.
Over time, a spark plug will wear out. Eventually, the spark will no longer be powerful enough to fully ignite the air and fuel. You are likely to notice power loss including bogging down when cutting grass because of a worn spark plug. Removing and replacing a spark plug is easy.
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.
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.
Problems in the Fuel System
Check and clean the vent. Surging is also caused by water that got into the fuel. A mower left in a heavy rain or condensation on a hot summer day can choke the engine. Empty the gas tank, properly dispose of the old fuel and try a fresh batch of gasoline.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
How do i replace blade on mountfield princess lawn mower. is it a left or righhand thread
It should be a standard thread. You may need to put a shop rag into the spark plug hole to make sure the engine does not turn while you are trying to remove the blade.
I have had a poulan pro 550 series push mower for almost 1 year at the end of the season last year the mower would start briefly and then stop. i have cleaned out the air filter and that did not help.the mower started, i made one revolution around the yard 3/4th of the way the mower quit. I then primed the mower it started then quit and now it will not start at all. Does anyone have any suggestions of what to do. Thanks
There is a little spring that works the carburetor arm. If that popped off then the mower will not run.
Lawn mower cranck but wont start…
Since you already checked for spark and air I would drain all the fuel out of it and check that fuel for water. Over time some lawn mowers end up with contaminated fuel. You can see the water sitting on the bottom of the fuel if you let it stand for a bit in a small plastic bowl.
Be sure to empty and dry out you fuel can as well. Especially if the mower stopped running right after a refuel. Which is a good sign your gas can is contaminated too.
What fuel do I put in a Mountfield 462rhp mower
Typically mowers run 87 octane.
Running problems with Mountfield HP454 petrol lawnmower
First thing to check is the air filter. It may be plugged.
MOUNTFIELD PETROL MOWER WONT RUN
If there is a float bowl on this model, takeoff the center screw and look for a little pilot hole on the side and take a small pin or the like and clean this pilot hole and try again to start. Good Luck Pal.
I have trouble starting a toro walk behind mower
All, I thought my carb was shot, so I replaced it. Still, start but no run (and had to use starting fluid). THEN!!! I noticed the spring to the “rev limiter” (just below and towards rear of carb) was not “tight”. The stupid bracket that holds the end of that spring had been bent down ~1/16″ and that caused all this heartache. CHECK YOUR REV LIMITER!!!
Where is oil drain plug on MTD mower – Mtd LAWN MOWER PART # 683-04163B FRAME Assembly:RIDER
If it isn’t on the bottom of the engine (above the blade) then you don’t have one. This is not that uncommon. When you need to drain the oil, FIRST- pull the spark plug wire off!!! Then remove the dip stick or filler plug and turn the unit upside down and drain the oil.