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Surging is the result of a "lean" fuel mixture, meaning too much air and not enough fuel. The problem is most likely a dirty carburetor or an air leak in the intake system. To fix, inspect the carburetor and intake manifold for cracks or looseness. Tighten all fasteners to ensure all seams are airtight. Clean out the carburetor with some carb spray and blow out all holes/orifices with compressed air. If problem persists, carburetor must be removed and disassembled/rebuilt.

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โˆ™ 2015-03-01 03:59:27
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Q: Why does a Briggs and Stratton 4.5 HP lawn mower engine surge?
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Why does a Briggs and stratton 4.75 hp Murray pro series mower rpm surge?

it could be caused by a few different things. the pneumatic governor or a fuel issue. an easy test is to hold the throttle on the carb closed to an idle. if it continues to surge then it is a carb issue, if it stops it is a governor issue

Will a bad fuel pump cause engine surge on a lawn mower?

You probably have a dirty carburetor causing that surge.

What causes surging on 5hp Briggs and Stratton lawn mower?

The most common cause of surging is a dirty air filter. EPA approved carbs tend to run lean causing the surge condition described. Main jet needs to be replaced with next size larger.

What causes a mower engine Briggs Stratton 25hp to surge with gas and flood out after starting normally?

The engine is receiving more gas than it can consume. Sometimes the carburetor needle valve will vibrate to the open position or the float valve will stick open. Also, a fouled spark plug will not provide sufficient spark to ignite the fuel. Check out a lawn mowers and small engines repair manual from your public library for troubleshooting and repair procedures.

Why doas your 23 hp Briggs and stratton 2 cylander vanguard motor surge and sputter at high rpm?

You need to either adjust your carburetor richer or leaner while at full throttle.

How do you fix the engine surge in your v6 1984 Ford Ranger 4x4?

Check your vacuum lines this usually the cause for a surge in engine speed when idling or running.

What is the less likely cause of an engine to hunt and surge at top no load speeds?

The price of pineapples in Hawaii is less likely to cause an engine to hunt or surge.

Briggs and Stratton Generators: Turn On The Power At Home!?

During a power outage, homeowners do not have to get stranded in the dark. A Briggs & Stratton generator can offer sufficient electricity to power the most essential appliances, fixtures, and items inside a home. The most affordable options are portable generators, which are easy to move along the rolling wheels. Briggs & Stratton offer portable generators ranging from 3,500 Watts up to 10,000 Watts. Multiple 120 V outlets and power surge optimization and protection technology are standard features that will benefit homeowners during power outages. Since the generators run on gasoline, safety is a major concern and therefore users need to be aware of carbon monoxide poisoning. This means that portable generators must always be placed in well ventilated locations.

What does a bad IAC cause?

the engine to stall and surge at idle

Can spark plugs cause a little surge in the engine?

my sparkplugs are gaped to wide can that cause my car to surge and poor starting

What causes engine surge in 2004 Kia Sedona?

Engine surge in a 2004 Kia Sedona is often caused by a clogged fuel filter or dirty injectors. When insufficient fuel reaches the engine, it will exhibit these symptoms.

How do you solve 1987 Mazda rx7 idle surge?

the surge the engine does when you first start it up is normal, the engine is built to do that to assist with warming up the system it should lower after 30secs or so.

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