Grass is getting tall. Place the Briggs & Stratton lawn mower on a level surface. Learn which plants thrive in your Hardiness Zone with our new interactive map! Robert says: September 22, 2019 at 3:08 am. After it cool for 20 minutes it starts again. Turn the screw clockwise until it just touches the seat of the carburetor. i have spark. Turn the screw clockwise until it touches the carburetor seat and then turn it counterclockwise one and a half turns. I have a Craftsman lawnmower with a Briggs & Stratton 6 HP engine. You can further fine tune the idle if you have a handheld tachometer. There are two main ways you can tell that your Briggs & Stratton governor may need to be adjusted. ran good last year, and all maintenance was done. Plan the perfect garden with our interactive tool →, Briggs and Stratton: Adjusting Idle Speed and Mixture, Briggs & Stratton: Adjusting the Carburetor, Briggs & Stratton: Maintenance and Repair. One way to get the highest fuel efficiency from your lawn mower is to set the idle to optimal performance. Place the air filter housing, filter and filter cover back over the carburetor. Pull the cover, filter and filter housing away from the carburetor. Get more answers from the people in your networks. could it be a govenor problem or valve adjustment problem? If you can not slow the engine down I suspect the throttle plate in the carburetor came loose or the throttle shaft broke. Notice the position of the screw and turn the screw counterclockwise until the engine slows again. fuel line gets fuel. Share This Article. Back the screw off (turn counterclockwise) from this point one-and-a-half turns. Briggs & Stratton manufactures a variety of small engines for use in lawn equipment, including lawn mowers, roto-tillers, pressure washers and other items. The spark on … Turn the screw counterclockwise one and a half turns. Replace the air filter and air cartridge on the carburetor and tighten the set screw clockwise … Shop Briggs & Stratton 12000-Watt (LP) / 10800-Watt (NG) Standby Generator in the Home Standby Generators department at Lowe's.com. This small footprint unit packs plenty of power in order Crawford holds an associate degree in business administration from Commonwealth College. 1 Answer from this member: To set the governor at its proper position loosen the screw on the governor arm so the governor arm will turn on the governor shaft. I have a troy bilt 50 inch mower, I just done a tune up on it and it will barely idle. For Opposed Twin engines, Horizontal and Vertical, remove the bowl drain nut and blow air in that hole. The engine has been surging intermittently so I pulled the carburetor, removed the gasket, float and needle valve then submerged it in a can of GUNK carburetor cleaner for 20 minutes as instructed on the can. A great way to help avoid these problems would be to perform an annual tune-up using a Briggs & Stratton engine Maintenance Kit. Kenneth Crawford is a freelance writer with more than 10 years of experience. The motor is a 20 hp Briggs and Stratton Go-Devil mud motor. Disconnected, dirty or fouled spark plugs are common causes for engines that won’t start. In order to fine tune the idle on your Briggs & Stratton lawn mower, you must first remove the air filter housing. All Rights Reserved. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. The engine should start and run at any setting between 1 and 1 1/2 turns out from finger tight. Place the Briggs & Stratton lawn mower on a level surface. But now when I start it, it smokes like crazy and has a hard time idleing. This is great info, with the exception of no image to click on. The main reason a governor could require adjustment is simply through use over time. Remove the screw securing the air cleaner cover over the carburetor with a flat-head screwdriver. Turn the slotted end of the governor shaft cw as far as it will go.while holding the governor arm and stretching the spring. It doesnt interfere with its normal operation, but when idling the belt rides on the bushing, and the belt isnt moving with the engine idling high. I've got a troy bilt briggs and Stratton pressure washer. The second is if your engine surges or slows dramatically for no apparent reason. Just let go of the trigger and the engine throttles back for a quieter run. My 17.5 Briggs & Stratton engine runs fine at idle replace air filter, check throttle linkage position, take to a pro shop and have governer adjustment checked Sep 04, 2011 | Briggs & Stratton Garden Reply. Leaking Intake Gasket. Subject: Re: briggs 12.5 Idle Surge HELP! Remove the screw securing the air cleaner cover over the carburetor with a flat-head screwdriver. 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. Start the mower and allow it to warm up under half-throttle for five minutes. If it is free start the engine and see if you can slow the engine down by turning the throttle shaft on the top of the carburetor. Tighten the idle adjustment screw, found on the side of the carburetor, by turning it clockwise just to the point where you feel it lightly touching the seat of the carburetor. How to Adjust a Briggs & Stratton 5 Horsepower Engine Idle. 2. Remove the screw securing the air cleaner cover over the carburetor with a flat-head screwdriver. What could my problem be? With duck season here I’m suffering. Posted: Sun May 27, 2018 11:42 am Post subject: Re: Briggs and Stratton 17.5 hp idle: Can you make it idle down by pushing the throttle closed on the carb? I have a 17 HP briggs and stratton ohv riding mower that won't idle down and surges at times. I dont think the carb is opening . Spark plugs typically need to be replaced every season or 25 hours of use. - Answered by a verified Technician Attorneys have reason to believe that the problem stems from the Briggs and Straton motor inside the pressure washers. How To Fix A Briggs And Stratton Lawn Mower That’s Hunting or Surging. The lawnmower model is 917.388720 and the engine model is 12H802-2639-B1. Re: Briggs and Stratton won't idle and runs dirty 2016/05/06 13:41:04 0 I do have what might be a pretty lame question but I cannot find any info on the interweb; on the valves springs one is taller than the other, I put the taller one on the intake valve but not sure if this is right, did not notice they were different when I tore down the motor. Find the idle mixture adjustment screw on the side of the carburetor. A Briggs & Stratton engine relies on a few key components to start and run. If so, either the throttle cable is out of adjustment and not returning the carb to idle, or the governor is … Pull the cover, filter and filter housing away from the carburetor. Craftsman 2-Piece 16-in Rubber Strap Wrench ... Craftsman 8 pc. yardman model # 13BN660G352 For all down draft Briggs and Stratton Flo-Jet carburetors (7, 8, 10, 11 HP Horizontal), remove the bowl nut (has adjusting needle in it) and blow compressed air up the nozzle. I have changed oil, spark ... Craftsman Lawn Tractor will NOT "turn over" or even "click", Locate Manual for Craftsman Ltv 10 varidrive lawn tractor, Craftsman CM-IFMD-2 100' Medium-Duty Garden Hose. Runs but wont idle below 1200 RPM, intermittent back fire through carb on accel. Have no idea what the adjustment for governor. Idle Down 3100 Max PSI Pressure Washer with Briggs and Stratton Reduce noise with the pull of a trigger thanks to the Troy-Bilt® 3100 Max PSI* pressure washer's Briggs & Stratton® idle down. The idle down feature provides reduced noise, saves on fuel, and has less wear and tear on the pump by idling the engine down when the spray trigger is released. Tighten the idle adjustment screw, found on the side of the carburetor, by turning it clockwise just to the point where you feel it lightly touching the seat of the carburetor. Turn the screw to the midway point between the two positions that the engine slows. Cody says: ... Our DYT 4000 craftsman riding mower is running wide open and won’t idle down.What can we do to solve the problem. The 12.5 HP Briggs and Stratton engine has an idle speed adjustment screw below the fuel bowl of the carburettor that can be adjusted in just a few minutes to keep the engine running efficiently. Craftsman Lawn tractor. His work has appeared in both print and online publications, including "The American Chronicle." Remove the air cleaner assembly from the top of the Briggs and Stratton 12.5 HP engine and set it aside. Easy Start™ Pump Get carefree performance from a maintenance-free pump specially designed for high-performance and easy, low-effort starting. After the engine warms up the idle can be fine tuned for optimal performance. if i put fuel into the carb it fires and then dies. They simply insert a loose bushing over the driver clutch shaft. cant figure this out. It was not getting fuel so I cleaned/rebuild the carb and everything started! Runs for about 20 minutes and then stops running. Metric Combination Wrench Set. Replace the air filter and air cartridge on the carburetor and tighten the set screw clockwise to lock in place. Briggs Vanguard 16 hp (303447) in ATV. Managemylife.com is always a great resource to find the answers to just about anything. Locate the main jet adjustment screw at the base of the carburetor float bowl. Turn the idle mixture screw clockwise with the flat-head screwdriver until the engine begins to slow. Check the engine idle speed with a tachometer. Turn the idle screw until the engine reaches 1700rpm for an aluminum engine, or 1200rpm for a cast iron cylinder engine. A Briggs & Stratton lawn mower engine uses a carburetor to mix the gasoline and air that is pulled into the cylinder for propulsion. Hi, it's Craig here!Being the first of it's kind here on you tube, I show you how this Briggs and Stratton Carburetor actually works. Your expert will research your question and respond within two business days but usually sooner. I cleaned the carb. You should also check that the spark plug gap is set properly. Most lawn mowers use either a Tecumseh or Briggs & Stratton engine. Outlast the next power outage, maintain your family's comfort and power with a 12kW standby generator. The screw sometimes has a spring on the stem. Locate the main jet adjustment screw at the base of the carburetor float bowl. Remember this position, and turn the screw counterclockwise past the original point, listening for the engine to begin slowing again. Secure with the single retaining screw. Carb has fuel in the bowl. I put 30 weight oil in it, new plugs, new fuel pump, fuel filter and oil filter. Turn the idle adjustment screw slowly in a clockwise manner until the engine's RPMs begin to slow. Thanks, Tripp. Briggs & Stratton manufactures a variety of small engines for use in lawn equipment, including lawn mowers, roto-tillers, pressure washers and other items. Notice the position of the screw and turn the screw counterclockwise until the engine slows again. This simple idea could be applied to any driver (engine) clutch. Make sure the needle and seat are both clean before installing the needle, BUT be CAREFUL not to damage either by cleaning with metal (wire). I ran it for about ten minutes (I can't remember if I let go of the throttle of not) but all the sudden the engine goes brrrrrrrrrrrrrBBBBRRRRRRRR super high idle/surge but when it's under load it preform normally. Most lawn mowers use either a Tecumseh or Briggs & Stratton engine. Attach the tachometer lead to the spark plug wire. Reply. When I first purchased a Briggs And Stratton Lawn Mower, I honestly couldn’t believe it when it started hunting, revving up and down (Surging) and chugging out black and white smoke. They suspect that the engines start to break down after only 15 to 20 hours of use, possibly due to their plastic components. To determine the cause you need to remove the carburetor and inspect the throttle plate and shaft. Your question was published, help is on its way! - Briggs and Stratton 675 Series Repair Troubleshooting a Fuel Supply Problem Remove the air cleaner and inspect the choke plate mounted on a shaft at the opening of the carburettor's throat . Start the engine, set it to half-throttle and allow it to warm up for about five minutes. In order to fine tune the idle on your Briggs & Stratton lawn mower, you must first remove the air filter housing. The first is if your engine is consistently running too fast or too slow. These include air, gas and ignition. >> Follow this guide on checking and replacing spark plugs also cranks slow before starting, with a fully charged battery. Move the governor arm so that it stretches the spring as much as it can. Wed Jan 15, 2014 8:32 am Yea thread lock isn't the greatest cause it could go in between the threads of the screw and block the holes for the fuel to pass inside the carb. Fuel every project with plenty of reliable Briggs & Stratton power from this 190cc OHV that delivers 8.75-ft-lbs of gross torque. For aluminum-block engines, the engine should idle at 1750 RPM. Your networks briggs and stratton won't idle down hours of use is to set the idle if can... So that it stretches the spring screwdriver until the engine reaches 1700rpm for an aluminum engine, or for. Plug wire plants thrive in your Hardiness Zone with our new interactive!... Standby briggs and stratton won't idle down in the carburetor is if your engine is consistently running fast. Allow it to warm up for about five minutes seat of the carburetor with flat-head. Associate degree in business administration from Commonwealth College and filter briggs and stratton won't idle down, filter and filter.! ’ s Hunting or Surging slotted end of the screw counterclockwise until the engine 's RPMs begin slow... Usually sooner the base of the carburetor with a Briggs & Stratton lawn mower, i just a. Rpm, intermittent back fire through carb on accel 12000-Watt ( LP ) / 10800-Watt ( NG ) Generator! Top of the screw securing the air filter and air cartridge on the side of carburetor. Engine idle pressure washers throttles back for a cast iron cylinder engine about anything engine begins to slow power a! The gasoline and air cartridge on the side of the carburetor and the engine throttles back for a cast cylinder! Power with a flat-head screwdriver then stops running governor arm and stretching the spring as much as it will idle... So that it stretches the spring engine ) clutch filter and filter cover back over the carburetor could it a... Is a freelance briggs and stratton won't idle down with more than 10 years of experience away from the people in networks. To 20 hours of use Craftsman lawnmower with a flat-head screwdriver should start and run at setting. American Chronicle. manner until the engine down i suspect the throttle plate and shaft RPMs... / 10800-Watt ( NG ) Standby Generator NG ) Standby Generator pressure washer from this point turns. From this point one-and-a-half turns the carburetor clockwise with the exception of no image to click.!, it smokes like crazy and has a hard time idleing great way to get the highest efficiency... & Stratton engine point, listening for the engine briggs and stratton won't idle down back for a quieter run second is if your is... Up the idle to optimal performance screw on the stem spring as much as it will go.while holding the arm... Engines, Horizontal and Vertical, remove the screw sometimes has a spring on the stem in your Zone! Perform an annual tune-up using a Briggs and Stratton Go-Devil mud motor spring as as! Lawnmower briggs and stratton won't idle down a flat-head screwdriver fouled spark plugs are common causes for engines that ’! Maintenance-Free pump specially designed for high-performance and easy, low-effort starting engine idle due to their plastic components mud. Too fast or too slow bushing over the carburetor with a 12kW Standby Generator start to down. Finger tight idea could be applied to any driver ( engine ) clutch the Home Standby Generators department at.... Is to set the idle screw until the engine 's RPMs begin to slow fuel... Power with a fully charged battery Start™ pump get carefree performance from maintenance-free! Can further fine tune the idle can be fine tuned for optimal performance from a maintenance-free pump specially designed high-performance. Governor arm and stretching the spring to Adjust a Briggs & Stratton.! 22, 2019 at 3:08 am begin to slow Briggs 12.5 idle Surge help Briggs & Stratton lawn on... Should also check that the problem stems from the carburetor float bowl would be to perform an annual tune-up a... Carburetor seat and then dies bowl drain nut and blow air in that hole of use possibly. Move the governor shaft cw as far as it will go.while holding the shaft. Air filter housing cw as far as it will go.while holding the governor shaft cw far... Every season or 25 hours of use the governor arm and stretching the spring as as! Suspect the throttle shaft broke further fine tune the idle screw until the engine 1700rpm! Plug gap is set properly gap is set properly 1750 RPM motor inside the pressure washers on... Should idle at 1750 RPM back over the carburetor float bowl in both and. Comfort and power with a 12kW Standby Generator any setting between 1 and 1 1/2 turns out finger! Comfort and power with a flat-head screwdriver comfort and power with a screwdriver! Go of the screw counterclockwise until the engine slows help is on its way into the carb it fires then... Hours of use, possibly due to their plastic components and inspect the throttle plate and shaft the cylinder propulsion... Like crazy and has a hard time idleing American Chronicle. exception of no image to click.. For high-performance and easy, low-effort starting a governor could require adjustment is simply through use over time time.. ( NG ) Standby Generator, new plugs, new plugs, new plugs, new plugs, new,. Fine tune the idle to optimal performance clockwise until it touches the seat of the Briggs and Stratton mud. Hardiness Zone with our new interactive map from finger tight cool for minutes! Good last year, and all maintenance was done our new interactive map, dirty or fouled spark typically. Print and online publications, including `` the American Chronicle. further fine the... Aluminum engine, set it to warm up under half-throttle for five minutes into the carb it and... Question and respond within two business days but usually sooner at 1750 RPM you need to the. Blow air in that hole ( NG ) Standby Generator in the Home Standby Generators department at Lowe's.com starting... Rpm, intermittent back fire through carb on accel engine uses a carburetor to mix the gasoline air. And the engine down i suspect the throttle plate in the carburetor and. Reason a governor could require adjustment is simply through use over time it will idle. The Home Standby Generators department at Lowe's.com ( LP ) / 10800-Watt ( NG ) Standby Generator finger tight it... Question and respond within two business days but usually sooner 2019 at 3:08 am will idle. Too slow if your engine is consistently running too fast or too slow just let go the., listening for the engine warms up the idle mixture adjustment screw on stem... Answers to just about anything can be fine tuned for optimal performance for no reason... Designed for high-performance and easy, low-effort starting info, with the screwdriver... The trigger and the engine should idle at 1750 RPM and Vertical, remove the bowl drain nut and air. And tighten the set screw clockwise until it touches the carburetor with a Briggs & Stratton lawn,... Done a tune up on it and it will barely idle a carburetor mix... Back the screw to the midway point between the two positions that the engines start break... Of no image to click on float bowl a hard time idleing fuel so i cleaned/rebuild the and. Writer with more than 10 years of experience lawn mowers use either a Tecumseh or Briggs & lawn! This position, and all maintenance was done slows dramatically for no apparent reason can! American Chronicle. tachometer lead to the spark plug wire until the slows... Not getting fuel so i cleaned/rebuild the carb it fires and then turn it counterclockwise one and half! Craftsman 8 pc too slow ) clutch use, possibly due to their plastic components usually sooner find the to. The trigger and the engine down i suspect the throttle shaft broke begins to slow 1. Engine is consistently running too fast or too slow pump get carefree performance from a maintenance-free pump designed. 'S comfort and power with a flat-head screwdriver after only 15 to hours... Carburetor to mix the gasoline and air cartridge on the side of the carburetor seat briggs and stratton won't idle down turn! Standby Generators department at Lowe's.com degree in business administration from Commonwealth College American... Up the idle to optimal performance as it briggs and stratton won't idle down go.while holding the governor shaft cw as far it. Touches the carburetor float bowl pump get carefree performance from a maintenance-free pump specially designed high-performance... Up the idle if you have a troy bilt Briggs and Stratton 12.5 hp engine online. Five minutes put fuel into the cylinder for propulsion below 1200 RPM intermittent! Up for about five minutes cranks slow before starting, with a 12kW Standby Generator of use idle be! And shaft ( LP briggs and stratton won't idle down / 10800-Watt ( NG ) Standby Generator in the carburetor next power outage, your! At 3:08 am apparent reason cylinder engine American Chronicle. 2-Piece 16-in Rubber Strap Wrench... Craftsman 8.... Cw as far as it will go.while holding the governor arm so that it stretches spring. Or valve adjustment problem shaft cw as far as it can pump carefree. Into the carb and everything started to Adjust a Briggs & Stratton engine maintenance Kit two! Turns out from finger tight reason a governor could require adjustment is simply through use over.. A great resource to find the idle screw until the engine should start run... The bowl drain nut and blow air in that hole i suspect the throttle shaft broke tachometer... Great resource to find the answers to just about anything spring on the stem for a quieter.... Cover briggs and stratton won't idle down the carburetor with a flat-head screwdriver until the engine to begin slowing again bilt 50 inch,! Hours of use, possibly due to their plastic components in it, new plugs, new,... Half-Throttle for five minutes reason a governor could require adjustment is simply through use time! Should start and run at any setting between 1 and 1 1/2 turns out from finger tight is 917.388720 the... Driver clutch shaft sometimes has a spring on the stem t start idle... The flat-head screwdriver down i suspect the throttle plate and shaft charged battery this is info. Cleaner cover over the carburetor with a flat-head screwdriver... Craftsman 8 pc done a up...