{"id":866,"date":"2023-06-27T17:01:27","date_gmt":"2023-06-27T17:01:27","guid":{"rendered":"https:\/\/myyardgarden.com\/?p=866"},"modified":"2023-06-27T17:08:36","modified_gmt":"2023-06-27T17:08:36","slug":"why-is-my-lawn-mower-revving-high","status":"publish","type":"post","link":"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/","title":{"rendered":"Why Is My Lawn Mower Revving High (5 Simple &#038; Noticeable Reasons)"},"content":{"rendered":"<p>A lawn mower is a crucial piece of equipment for maintaining any yard or outdoor space. It ensures that our lawns are tidy, enhancing the aesthetic appeal of our surroundings.<\/p>\n<p>However, like any machine, a lawn mower can experience a variety of issues that can impact its performance and longevity.<\/p>\n<p>One such problem is the issue of high revving, where the engine runs at an unusually high speed. This can lead to excessive fuel consumption, noise, and potential engine damage if not addressed in a timely manner.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_68_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Why_Is_My_Lawn_Mower_Revving_High\" title=\"Why Is My Lawn Mower Revving High\">Why Is My Lawn Mower Revving High<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Clogged_Or_Dirty_Carburetor\" title=\"Clogged Or Dirty Carburetor\">Clogged Or Dirty Carburetor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Air_Leaks_In_The_Carburetor_Or_Intake_Manifold\" title=\"Air Leaks In The Carburetor Or Intake Manifold\">Air Leaks In The Carburetor Or Intake Manifold<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Faulty_Or_Damaged_Throttle\" title=\"Faulty Or Damaged Throttle\">Faulty Or Damaged Throttle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Improper_Fuel-Air_Mixture\" title=\"Improper Fuel-Air Mixture\">Improper Fuel-Air Mixture<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Dirty_Air_Filter\" title=\"Dirty Air Filter\">Dirty Air Filter<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Detailed_Analysis_Of_Each_Potential_Cause\" title=\"Detailed Analysis Of Each Potential Cause\">Detailed Analysis Of Each Potential Cause<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Clogged_Or_Dirty_Carburetor-2\" title=\"Clogged Or Dirty Carburetor\">Clogged Or Dirty Carburetor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Air_Leaks_In_The_Carburetor_Or_Intake_Manifold-2\" title=\"Air Leaks In The Carburetor Or Intake Manifold\">Air Leaks In The Carburetor Or Intake Manifold<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Faulty_Or_Damaged_Throttle-2\" title=\"Faulty Or Damaged Throttle\">Faulty Or Damaged Throttle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Improper_Fuel-Air_Mixture-2\" title=\"Improper Fuel-Air Mixture\">Improper Fuel-Air Mixture<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Dirty_Air_Filter-2\" title=\"Dirty Air Filter\">Dirty Air Filter<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Prevention_Measures_For_High_Revving\" title=\"Prevention Measures For High Revving\">Prevention Measures For High Revving<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Regular_Maintenance\" title=\"Regular Maintenance\">Regular Maintenance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Routine_Checks_And_Cleaning_Processes\" title=\"Routine Checks And Cleaning Processes\">Routine Checks And Cleaning Processes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Fuel_Best_Practices\" title=\"Fuel Best Practices\">Fuel Best Practices<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/myyardgarden.com\/why-is-my-lawn-mower-revving-high\/#Proper_Storage\" title=\"Proper Storage\">Proper Storage<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Why_Is_My_Lawn_Mower_Revving_High\"><\/span>Why Is My Lawn Mower Revving High<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There are several potential reasons why a lawn mower might be revving high, each associated with different components of the mower.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Clogged_Or_Dirty_Carburetor\"><\/span>Clogged Or Dirty Carburetor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The carburetor plays a critical role in controlling the speed of the engine. It mixes air and fuel in the correct proportions for <a href=\"https:\/\/www.energy.gov\/eere\/vehicles\/articles\/internal-combustion-engine-basics\" target=\"_blank\" rel=\"noopener\">combustion<\/a>.<\/p>\n<p>If the carburetor becomes dirty or clogged, it may not be able to perform this function correctly, leading to an imbalanced fuel-air mixture that causes the mower to rev high.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Air_Leaks_In_The_Carburetor_Or_Intake_Manifold\"><\/span>Air Leaks In The Carburetor Or Intake Manifold<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If there are air leaks in the carburetor or the intake manifold (the part of the mower that supplies the air\/fuel mixture to the engine), more air can get into the engine than is intended.<\/p>\n<p>This excess air can cause the mower to rev higher than normal.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Faulty_Or_Damaged_Throttle\"><\/span>Faulty Or Damaged Throttle<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The throttle controls the amount of air entering the carburetor, thereby controlling the speed of the engine.<\/p>\n<p>If the throttle is damaged or not working properly, it could lead to more air entering the carburetor, causing the mower to rev high.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Improper_Fuel-Air_Mixture\"><\/span>Improper Fuel-Air Mixture<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A precise balance of fuel and air is required for the engine to function properly. If the mixture is too lean (too much air compared to fuel), it could cause the engine to work harder and rev higher.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Dirty_Air_Filter\"><\/span>Dirty Air Filter<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The air filter&#8217;s job is to ensure that the air entering the engine is clean and free from dirt and debris.<\/p>\n<p>If the air filter is dirty, it can limit the amount of air entering the engine, causing the engine to draw more fuel, resulting in a rich mixture and potentially causing the engine to rev high.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Detailed_Analysis_Of_Each_Potential_Cause\"><\/span>Detailed Analysis Of Each Potential Cause<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Clogged_Or_Dirty_Carburetor-2\"><\/span>Clogged Or Dirty Carburetor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>The carburetor&#8217;s primary role in a lawnmower is to control the engine&#8217;s speed. It does this by mixing air and fuel in the right proportions for combustion.<\/li>\n<li>A dirty or clogged carburetor can hinder this process, leading to an imbalanced fuel-air mixture. When this happens, the engine may rev high in an attempt to compensate for the imbalance.<\/li>\n<li>Signs of a clogged carburetor may include difficulty starting the mower, a mower that only runs on a choke, or irregular engine revving patterns.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Air_Leaks_In_The_Carburetor_Or_Intake_Manifold-2\"><\/span>Air Leaks In The Carburetor Or Intake Manifold<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>The carburetor and intake manifold are responsible for providing the correct air-fuel mixture to the engine.<\/li>\n<li>When air leaks occur in these components, more air can enter the engine than intended. This additional air can cause a lean fuel-air mixture, leading the engine to work harder and rev higher.<\/li>\n<li>Signs of potential air leaks include high revving, a racing engine, or a noticeable reduction in the mower&#8217;s power.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Faulty_Or_Damaged_Throttle-2\"><\/span>Faulty Or Damaged Throttle<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>The throttle controls the amount of air entering the carburetor. By doing so, it influences the speed of the engine.<\/li>\n<li>A faulty or damaged throttle might not be able to regulate this airflow properly. This could result in an excess amount of air entering the carburetor, causing the engine to rev high.<\/li>\n<li>Symptoms of a faulty throttle can include erratic engine speeds, lack of engine control, or a lawn mower that doesn&#8217;t respond appropriately to throttle adjustments.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Improper_Fuel-Air_Mixture-2\"><\/span>Improper Fuel-Air Mixture<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>For an engine to function properly, a precise balance of fuel and air is required.<\/li>\n<li>If the mixture is too lean (has too much air compared to fuel), it can cause the engine to work harder and rev higher in an attempt to achieve the needed power.<\/li>\n<li>Indications of an improper fuel-air mixture could be difficulty in starting the engine, a decrease in the mower&#8217;s power, or an engine that sputters or stalls.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Dirty_Air_Filter-2\"><\/span>Dirty Air Filter<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>The air filter ensures the air entering the engine is clean and free from dirt or debris.<\/li>\n<li>If the air filter is dirty or clogged, it can limit the amount of air entering the engine. This situation can cause the engine to draw more fuel, leading to a rich mixture, and potentially causing the engine to rev high in an attempt to balance the mixture.<\/li>\n<li>Symptoms of a dirty air filter might include difficulty in starting, decreased power, or black smoke emanating from the exhaust.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Prevention_Measures_For_High_Revving\"><\/span>Prevention Measures For High Revving<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Preventing issues with high revving involves regular maintenance of your lawn mower and attention to certain best practices.<\/p>\n<p><strong>Here are some steps you can take:<\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Regular_Maintenance\"><\/span>Regular Maintenance<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Regularly check the components of your lawn mower, including the carburetor, throttle, and air filter. Regular maintenance helps spot potential issues early and prevents them from escalating into more significant problems.<\/li>\n<li>Clean your mower regularly, especially after use in dirty or dusty conditions. Accumulation of dirt and debris can affect the performance of various parts.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Routine_Checks_And_Cleaning_Processes\"><\/span>Routine Checks And Cleaning Processes<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Regularly check the carburetor and clean it as necessary to prevent clogging.<\/li>\n<li>Inspect the throttle and its cable to ensure it&#8217;s functioning properly.<\/li>\n<li>Clean or replace the air filter as per the manufacturer&#8217;s recommendations.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Fuel_Best_Practices\"><\/span>Fuel Best Practices<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Always use fresh, high-quality fuel in your mower. Old or contaminated fuel can lead to an improper fuel-air mixture.<\/li>\n<li>Consider adding a fuel stabilizer if you won&#8217;t be using the mower for an extended period.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Proper_Storage\"><\/span>Proper Storage<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>If you&#8217;re storing your mower for an extended period (such as over the winter), drain the fuel or add a fuel stabilizer to prevent the fuel from breaking down and causing issues.<\/li>\n<li>Store the mower in a clean, dry place to prevent the accumulation of dirt and moisture.<\/li>\n<\/ul>\n<p>By following these preventive measures, you can help ensure that your lawn mower operates smoothly and efficiently, reducing the likelihood of experiencing high revving or other issues.<\/p>\n<p><strong>Conclusion<\/strong><\/p>\n<p>Understanding and resolving the issue of high revving in a lawn mower is crucial for maintaining its optimal performance and longevity.<\/p>\n<p>As we&#8217;ve explored, causes can range from a clogged or dirty carburetor to air leaks, a faulty throttle, an improper fuel-air mixture, or a dirty air filter.<\/p>\n<p>Recognizing the symptoms and understanding the possible causes allow you to diagnose and fix the problem effectively. However, the key to preventing such issues lies in routine maintenance and good practices.<\/p>\n<p>Regularly cleaning the carburetor, checking the throttle, and replacing the air filter can go a long way in preventing high revving and ensuring the smooth operation of your mower.<\/p>\n<p>With proper care and attention, you can keep your lawn mower running efficiently for many seasons to come.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A lawn mower is a crucial piece of equipment for maintaining any yard or outdoor space. It ensures that our lawns are tidy, enhancing the aesthetic appeal of our surroundings. However, like any machine, a lawn mower can experience a variety of issues that can impact its performance and longevity. One such problem is the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":868,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[8],"tags":[],"_links":{"self":[{"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/posts\/866"}],"collection":[{"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/comments?post=866"}],"version-history":[{"count":4,"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/posts\/866\/revisions"}],"predecessor-version":[{"id":871,"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/posts\/866\/revisions\/871"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/media\/868"}],"wp:attachment":[{"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/media?parent=866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/categories?post=866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/myyardgarden.com\/wp-json\/wp\/v2\/tags?post=866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}