Briggs Stratton Lawnmower Lawn Mower Short Block

Model 132232, type 0322-01, Pulsa Jet Carb.(Mechanical governor), remote throttle on rotavator.
The engine starts with choke, but will only idle on the fastest ‘Run’ setting and will idle without choke when warm. The throttle shaft on the carb body oscillates on its own, pulsing the revs at idle.
When I spotted this I found that if I operate the throttle spindle manually at the carb body, I can make the engine rev fully and without any misfire or smoke.
The engine stood unused for 3 years and the things tried so far are –
– Checking governor and throttle spring and linkages. Difficult
Experienced gardeners share their insights in answering this question :
My money is on a partial blockage of the main jet or the passageway to it. You’re having to force it to run through the idle jet by fully choking the incoming air. There’s not enough gas coming in with the choke open to allow it to run.

I’m thiniking total carb disassembly, carb cleaner and an air compressor combined with a ton of patience will take care of the issue.

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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.
If your Briggs & Stratton engine has a spark but won`t run, then it is most likely a problem with the gas or air intake in the engine. The spark on the spark plug ignites the gas in the piston, but if the air filter is clogged or the gas can`t flow, then the engine won`t start.
You Lose Power in the Middle of Mowing:

Here`s why this happens and what you can do: Dirty Air Filter on Your Lawn Mower: Clean or replace. Dirty Spark Plug: Clean or replace. Build Up of Clippings & Debris: Clean underside of your lawn mower deck as noted above.

If the engine will idle but dies at full throttle the main jet in the carburetor may be plugged. You can repair a plugged main jet by cleaning it, replacing the jet, or replacing the carburetor. If you choose to clean or replace the main jet, you will also want to clean the rest of the carburetor.
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. You may also have to change the fuel pump if it does not get fuel to the ignition system.
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.
Bad Spark Plugs

If the engine holds compression well, and the fuel system is working correctly, but it still won`t start, that tells us that your car`s spark plugs may not be working. The spark plugs ignite the air/fuel mixture inside the engine`s cylinders. It`s the resulting explosion that actually powers your car.

The buying spree lacked strategic focus and ultimately failed to turn around the company`s decline. Rather than investing in research and innovation, Briggs` management tried to buy success while continuing to enrich its executives and stockholders.
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.
When the crankshaft spins quickly, the flyweights open up, putting pressure on the governor cup and crank. This closes the throttle, limiting the air-fuel released into the engine. When the engine load increases, the crankshaft spins more slowly. This leads the flyweights to relax and the throttle to open back up.
Touch the metal shaft of a screwdriver to both of the large terminals at the same time. If the engine turns over and starts, the solenoid is bad and should be replaced. If the starter motor does not run, the motor itself is probably defective.
There are several reasons a Craftsman lawnmower may turn over but not start, with the most common ones including the following: Lack of fuel. Dirty air filters. Electrical issues in the ignition system or the starter motor.
If your lawn mower starts, runs for a while, then dies, check the ignition coil, gas cap, and spark plug. One or more of these parts could be causing your problem. Follow our repair and symptom guide to help you fix this.
A dead battery is the most common reason why engines fail to start up. A common reason for batteries to fail is drain. Your car`s battery typically expends a small portion of its storage to start your car up, and then recharges from your alternator as you move.
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A Bad Crankshaft Position Sensor

The crankshaft position sensor monitors the position and rotational speeds of the crankshaft. Without the crank sensor, the engine control module (ECM) wouldn`t know when to fire the fuel injectors and ignite the spark plugs.

While idling, the engine may shake so badly that vibrations can be felt throughout the vehicle. The engine may be running poorly and one or more cylinders may be misfiring. The check engine light may come on or keep flashing. The most common cause for a misfire is a problem related to the ignition system.
The relationship between crank and cam timing events can also cause no spark, especially on Chrysler products. On these vehicles, the PCM won`t trigger the ignition coil if the cam and crank are out-of-sync.
Briggs & Stratton Corporation is an American manufacturer of gasoline engines with headquarters in Wauwatosa, Wisconsin. Wauwatosa, Wisconsin, U.S.
Every year, Briggs & Stratton makes and assembles the engines and enclosures for all of their home standby generators at their US-based facilities in Poplar Bluff, Missouri and Munnsville, New York, among others.
The vast majority of the small engines Briggs & Stratton manufactures are 4-cycle engines, which require four strokes of the piston to complete a crankshaft revolution.
Your lawn mower runs for 30 minutes then dies if you are having issues such as a bad spark plug, air problems, a malfunctioning carburetor, or a faulty gas cap. You may even encounter the issue that your lawn mower runs for 5 minutes then dies.
An engine that will fire and run with the choke closed but dies when the choke is opened likely has debris at least partially blocking the fuel passages in the carburetor. In this condition the closed choke provides enough extra fuel to enter the engine to overcome the lack of fuel flowing through the other passages.
A snowblower that runs better on half choke likely suffers from a dirty or faulty carburetor. Cleaning or replacing the carburetor will fix the issue.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Craftsman mower with 6.75 B&S motor will start and run fine for about 3-4 minutes and then slowly chokes out. I cleaned the air filter and need to know what to check next. Thanks.
ANSWER : Hi there

though you have cleaned the filter it could still be not getting enough air you can start the machine without it and see if stays running do not do work with it just see if it runs sitting there if it does simple fix new filter however if it does the same it is a lack of fuel either fuel filter if has one if not it will be in the carburater these get gumed up by old gas in which in that case find a small engine repair shop to take care of this issue

thank you for the question hope i helped with the issue good luck and have a great day

Hi there, quick question, there is a black and grey wire on the 13.5hp briggs and stratton, i am unsure which is the earth and which is the power?
ANSWER : The grey one should get power when the key is turned on. This opens the solenoid valve on the carb and lets fuel in. The black one should get earthed when the key is turned off, this shorts out the coil and stops the spark. Aussie Steve.

Where are all vacuum lines
ANSWER : What are you working on? Details please.

How do I remove and clean air filter? – Briggs & Stratton Lawn-Boy 10640 20-Inch 6.5 HP Gas Powered Lawn Mower
ANSWER : There should be a square of plastic on the side of the engine which is opposite of the muffler. It has a small hex head with a slot cut in it. Remove this plastic cover and the air cleaner should be inside of it.

My Briggs & Stratton gives off a puff of blue smoke when I first start it. When in idle it will REV up & down and give an ocassional backfire.
ANSWER : Sounds like you may have too much oil in the engine. Check your oil level.

Oil quanity I have 20 hp craftsman briggs and stratton twin how much oil when you change out oil
ANSWER : Usually 1 qt

5hp Briggs & Stratton lawnmower starts but stop running?
ANSWER : Ck fuel pump its on the side of the carb 3or4 screws hold cover on .

Help with the lawnmower. It starts and stalls after a few seconds
ANSWER : Check the fuel system clean the carb .