Briggs & Stratton 2691251-00

Questions and Answers

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Stephanie HughesAug 2, 2025
Why Briggs & Stratton 2691251-00 Lawn Mower engine will not turnover or start?
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  dawn51Aug 2, 2025
  Several factors can prevent your Briggs & Stratton Lawn Mower engine from turning over or starting. It could be due to: the brake pedal not being fully depressed (fully depress it); the fuel tank being empty (allow the engine to cool if hot, then refill the tank); the battery terminals needing cleaning (refer to the Cleaning the Battery and Cables section); the battery being discharged or dead (recharge or replace it); or loose or broken wiring (visually inspect the wiring, and consult an authorized dealer if wires are frayed or broken).
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nyoungAug 6, 2025
What to do if Briggs & Stratton Lawn Mower engine stalls easily with mower engaged?
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  Jacqueline Bryant DVMAug 6, 2025
  If your Briggs & Stratton Lawn Mower engine stalls easily when the mower is engaged, the issue could stem from several causes. Try the following: set the engine to full throttle if the engine speed is too slow; slow down if your ground speed is too fast; cut tall grass at maximum cutting height during the first pass if the cutting height is set too low; run the engine for several minutes to warm it up if it is not up to operating temperature; start the mower in a cleared area if you are starting it in tall grass.
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Kylie FoleyAug 11, 2025
Why Briggs & Stratton 2691251-00 Lawn Mower engine knocks?
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  sullivanjacobAug 11, 2025
  If your Briggs & Stratton Lawn Mower engine is knocking, it could be due to a low oil level (check and add oil as needed) or using the wrong grade of oil (refer to the Oil Recommendations Chart).
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Patricia TateAug 17, 2025
Why Briggs & Stratton 2691251-00 Lawn Mower has excessive oil consumption?
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  mgarciaAug 17, 2025
  Excessive oil consumption in your Briggs & Stratton Lawn Mower can be attributed to using the wrong grade of oil (refer to the Oil Recommendations Chart) or having too much oil in the crankcase (drain excess oil).
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xbrownAug 21, 2025
What to do if Briggs & Stratton 2691251-00 engine runs, but tractor will not drive?
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  kevinmartinezAug 21, 2025
  If the engine runs but your Briggs & Stratton Lawn Mower tractor won't drive, make sure that the ground speed control pedals are depressed. Also, ensure the transmission release lever is in the DRIVE position, and disengage the parking brake.
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Adrian WalkerAug 27, 2025
Why Briggs & Stratton 2691251-00 Lawn Mower cut is rough looking?
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  David AllenAug 27, 2025
  A rough-looking cut from your Briggs & Stratton Lawn Mower can be caused by the engine speed being too slow (set to full throttle) or the ground speed being too fast (slow down).

Summary

Operator Safety

Important Safety Instructions

Manual contains important instructions for initial set-up, operation, and maintenance.

Safety Symbols and Meanings

Explains safety symbols and their meanings for hazard identification.

General Operation

Operation Guidelines

Instructions for safe and proper operation of the unit.

Transporting and Storage

Transport and Storage Practices

Guidelines for safely transporting and storing the equipment.

Slope Operation

Operating Safely on Slopes

Precautions and techniques for mowing on slopes.

Child Safety on Slopes

Warns about tragic accidents involving children and mowing activity.

Service and Maintenance

Safe Gasoline Handling

Instructions for safe handling of gasoline to prevent fire and explosion.

General Maintenance Procedures

Covers tasks like cleaning, checks, and adjustments.

Safety Decals

Safety Icons Explained

Explains the meaning of various safety icons on the machine.

Features and Controls

Engine Controls

Throttle, Ignition, PTO.

Driving Controls

Ground Speed Pedals, Parking Brake, Cruise Control.

Operator Aids and Displays

RMO, Catcher Alarm, Headlights, Hourmeter, Dash Panel.

Electronic Dash Panel

Setting the Clock

Instructions for setting the clock on the electronic dash panel.

Viewing Operating Hours

How to navigate and view total hours and trip hours.

Maintenance Alerts

Explains various maintenance reminders displayed.

Operation

General Safety and Interlock Tests

General operating safety and tests for the safety interlock system.

Mower and RMO Functionality Tests

Checks mower blade stopping time and Reverse Mow Option (RMO).

Tire Pressure and Oil

Tire Pressure Check

Importance of checking tire pressure for traction and cut quality.

Oil Recommendations

Guidance on selecting the correct engine oil viscosity.

Fluid Checks and Recommendations

Engine Oil Check and Add

Procedures for checking and adding engine oil, and oil pressure issues.

Fuel Requirements and High Altitude

Specifies fuel type and considerations for high altitude operation.

Adding Fuel

Fueling Safety and Procedure

Safety warnings and step-by-step guide for adding fuel.

Starting the Engine

Engine Starting Safety

Warnings and precautions before starting the engine.

Engine Starting Procedure

Step-by-step guide to start the engine.

Driving the Tractor

Tractor Driving Procedure

Instructions and safety tips for driving the tractor.

Mowing Procedure

Tractor Operation Controls

Reverse Mowing Option (RMO)

Safety warnings and how to activate Reverse Mowing Option.

Parking Brake and Trailer Attachment

How to use the parking brake and attach a trailer.

Stopping and Maintenance Operations

Stopping the Tractor and Engine

Steps to safely stop the tractor and engine.

Emptying Catcher and Adjusting Height

Procedures for emptying the grass catcher and adjusting cutting height.

Maintenance Chart

Tractor and Mower Maintenance Schedule

Lists required maintenance tasks for tractor and mower.

Engine Maintenance Schedule

Lists required maintenance tasks for the engine.

Maintenance Safety Precautions

Tire Pressure Check

Mower Blade Stopping Time Check

Battery Maintenance

Battery Safety and Cleaning

Warnings for battery handling and steps for cleaning.

Battery Charging

Guidelines for safely charging the battery.

Engine Oil Service

Oil Change Procedure

Steps for draining oil, changing filter, and adding oil.

Servicing Air Filter

Air Filter Cleaning and Replacement

Instructions for servicing the engine air filter.

Washing the Mower Deck

Mower Deck Cleaning Procedure

Steps for cleaning the underside of the mower deck.

Storage

Storage Safety Warnings

Warnings about storing the unit with fuel and in enclosed spaces.

Equipment Storage Procedures

Steps for preparing the equipment for storage.

Fuel System Storage

How to keep fuel fresh during storage using stabilizers.

Troubleshooting the Tractor

Tractor Problem Diagnosis

Lists common tractor problems and their remedies.

Troubleshooting the Mower

Mower Performance Issues

Lists common mower problems and their remedies.

Specifications

Engine Specifications

Technical details for different engine models.

Chassis and Tire Specifications

Details on fuel tank, wheels, and tire sizes.

Transmission and Mower Specs

Details on transmission type and mower deck dimensions.

Power Ratings Explanation

Explains engine power rating standards and variations.