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It can be caused by blocked (dirty) carburetor passages, faulty carburetor diaphragm or weak governor spring. Dirty or binding governor linkage can also cause the problem. However the most common cause of surging (revving up and down) in small engines such as those found on lawn mowers, is vacuum leaks. The gaskets often dry up when the engine is stored over the winter with an empty gas tank and then leak air into the carburetor. Prevent this by putting fresh gas in the tank with a stabilizer additive before storing for the winter. To test for bad gaskets, spray starter fluid around the carburetor gaskets while it is surging. If it stops surging while you spray, you have your answer.
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Will a bad fuel pump cause engine surge on a lawn mower?
You probably have a dirty carburetor causing that surge.
How to Repair lawn mower engine?
Buy a lawn mower engine repair manual at Border's or Barnes & Noble.
How do you put a V8 engine on a lawn mower?
very gently, or the mower will get squashed
Where is the oil filter on a lawn mower?
depends on the engine but it will be on the engine block.
From the same distance away what does the jet engine sound louder than a lawn mower?
The sound of a jet engine vibrates more than the sound of a lawn mower.
Why does a jet engine sound louder than a lawn mower?
from a distance away why does a jet sound loader than a lawn mower
Lawn mower pull cord?
The pull cord of a lawn mower is used to manually crank the engine to get it started. As the engine is quickly turned, a spark is created which begins combustion.
Why won't cord pull out on Weedeater lawn mower with Briggs and Stratton engine?
Check the underneath of lawn mower for grass built up.
What is the energy conversion of a lawn mower engine?
A lawn mower works by converting chemical energy (energy stored in the gas) to mechanical energy.
What makes the blades on a lawn mower work?
The engine, I think
Is it possible to put a snowmobile engine in a lawn mower?
Yes, it is !
What does it mean when a lawn mower engine sputters?
it needs gas
