Move the governor arm so that it stretches the spring as much as it can. 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. Managemylife.com is always a great resource to find the answers to just about anything. These include air, gas and ignition. They suspect that the engines start to break down after only 15 to 20 hours of use, possibly due to their plastic components. Place the Briggs & Stratton lawn mower on a level surface. Disconnected, dirty or fouled spark plugs are common causes for engines that won’t start. 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. Craftsman 2-Piece 16-in Rubber Strap Wrench ... Craftsman 8 pc. 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. Secure with the single retaining screw. The second is if your engine surges or slows dramatically for no apparent reason. For Opposed Twin engines, Horizontal and Vertical, remove the bowl drain nut and blow air in that hole. If so, either the throttle cable is out of adjustment and not returning the carb to idle, or the governor is … 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. How To Fix A Briggs And Stratton Lawn Mower That’s Hunting or Surging. This small footprint unit packs plenty of power in order Turn the screw to the midway point between the two positions that the engine slows. Craftsman Lawn tractor. After it cool for 20 minutes it starts again. Learn which plants thrive in your Hardiness Zone with our new interactive map! Place the air filter housing, filter and filter cover back over the carburetor. I dont think the carb is opening . Pull the cover, filter and filter housing away from the carburetor. 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 . Turn the screw clockwise until it touches the carburetor seat and then turn it counterclockwise one and a half turns. Remember this position, and turn the screw counterclockwise past the original point, listening for the engine to begin slowing again. I have a troy bilt 50 inch mower, I just done a tune up on it and it will barely idle. i have spark. Carb has fuel in the bowl. Shop Briggs & Stratton 12000-Watt (LP) / 10800-Watt (NG) Standby Generator in the Home Standby Generators department at Lowe's.com. The motor is a 20 hp Briggs and Stratton Go-Devil mud motor. Start the engine, set it to half-throttle and allow it to warm up for about five minutes. Runs for about 20 minutes and then stops running. Turn the screw clockwise until it just touches the seat of the carburetor. Check the engine idle speed with a tachometer. Thanks, Tripp. Kenneth Crawford is a freelance writer with more than 10 years of experience. With duck season here I’m suffering. Replace the air filter and air cartridge on the carburetor and tighten the set screw clockwise to lock in place. 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. Turn the slotted end of the governor shaft cw as far as it will go.while holding the governor arm and stretching the spring. Locate the main jet adjustment screw at the base of the carburetor float bowl. In order to fine tune the idle on your Briggs & Stratton lawn mower, you must first remove the air filter housing. Attorneys have reason to believe that the problem stems from the Briggs and Straton motor inside the pressure washers. A great way to help avoid these problems would be to perform an annual tune-up using a Briggs & Stratton engine Maintenance Kit. cant figure this out. Turn the idle screw until the engine reaches 1700rpm for an aluminum engine, or 1200rpm for a cast iron cylinder engine. - Answered by a verified Technician 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. Share This Article. One way to get the highest fuel efficiency from your lawn mower is to set the idle to optimal performance. In order to fine tune the idle on your Briggs & Stratton lawn mower, you must first remove the air filter housing. The engine should start and run at any setting between 1 and 1 1/2 turns out from finger tight. Have no idea what the adjustment for governor. 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. Your expert will research your question and respond within two business days but usually sooner. It was not getting fuel so I cleaned/rebuild the carb and everything started! They simply insert a loose bushing over the driver clutch shaft. I have a 17 HP briggs and stratton ohv riding mower that won't idle down and surges at times. After the engine warms up the idle can be fine tuned for optimal performance. 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. I've got a troy bilt briggs and Stratton pressure washer. Get more answers from the people in your networks. Remove the screw securing the air cleaner cover over the carburetor with a flat-head screwdriver. yardman model # 13BN660G352 Subject: Re: briggs 12.5 Idle Surge HELP! Grass is getting tall. I cleaned the carb. This simple idea could be applied to any driver (engine) clutch. 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. Briggs & Stratton manufactures a variety of small engines for use in lawn equipment, including lawn mowers, roto-tillers, pressure washers and other items. 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. 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. Leaking Intake Gasket. I have a Craftsman lawnmower with a Briggs & Stratton 6 HP engine. Remove the screw securing the air cleaner cover over the carburetor with a flat-head screwdriver. ran good last year, and all maintenance was done. 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). Robert says: September 22, 2019 at 3:08 am. Back the screw off (turn counterclockwise) from this point one-and-a-half turns. The lawnmower model is 917.388720 and the engine model is 12H802-2639-B1. Remove the screw securing the air cleaner cover over the carburetor with a flat-head screwdriver. Find the idle mixture adjustment screw on the side of the carburetor. Remove the air cleaner assembly from the top of the Briggs and Stratton 12.5 HP engine and set it aside. 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. I put 30 weight oil in it, new plugs, new fuel pump, fuel filter and oil filter. For aluminum-block engines, the engine should idle at 1750 RPM. could it be a govenor problem or valve adjustment problem? 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 You can further fine tune the idle if you have a handheld tachometer. Metric Combination Wrench Set. The first is if your engine is consistently running too fast or too slow. If you can not slow the engine down I suspect the throttle plate in the carburetor came loose or the throttle shaft broke. Briggs & Stratton manufactures a variety of small engines for use in lawn equipment, including lawn mowers, roto-tillers, pressure washers and other items. 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. 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. 2. A Briggs & Stratton engine relies on a few key components to start and run. 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. Most lawn mowers use either a Tecumseh or Briggs & Stratton engine. Turn the idle mixture screw clockwise with the flat-head screwdriver until the engine begins to slow. Most lawn mowers use either a Tecumseh or Briggs & Stratton engine. Notice the position of the screw and turn the screw counterclockwise until the engine slows again. if i put fuel into the carb it fires and then dies. >> Follow this guide on checking and replacing spark plugs Crawford holds an associate degree in business administration from Commonwealth College. The screw sometimes has a spring on the stem. fuel line gets fuel. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. Briggs Vanguard 16 hp (303447) in ATV. Locate the main jet adjustment screw at the base of the carburetor float bowl. Just let go of the trigger and the engine throttles back for a quieter run. 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. Spark plugs typically need to be replaced every season or 25 hours of use. Outlast the next power outage, maintain your family's comfort and power with a 12kW standby generator. Easy Start™ Pump Get carefree performance from a maintenance-free pump specially designed for high-performance and easy, low-effort starting. 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. What could my problem be? - Briggs and Stratton 675 Series Repair also cranks slow before starting, with a fully charged battery. Reply. But now when I start it, it smokes like crazy and has a hard time idleing. Runs but wont idle below 1200 RPM, intermittent back fire through carb on accel. Place the Briggs & Stratton lawn mower on a level surface. Pull the cover, filter and filter housing away from the carburetor. How to Adjust a Briggs & Stratton 5 Horsepower Engine Idle. Fuel every project with plenty of reliable Briggs & Stratton power from this 190cc OHV that delivers 8.75-ft-lbs of gross torque. A Briggs & Stratton lawn mower engine uses a carburetor to mix the gasoline and air that is pulled into the cylinder for propulsion. To determine the cause you need to remove the carburetor and inspect the throttle plate and shaft. Notice the position of the screw and turn the screw counterclockwise until the engine slows again. Reply. Attach the tachometer lead to the spark plug wire. Replace the air filter and air cartridge on the carburetor and tighten the set screw clockwise … All Rights Reserved. Turn the idle adjustment screw slowly in a clockwise manner until the engine's RPMs begin to slow. His work has appeared in both print and online publications, including "The American Chronicle." This is great info, with the exception of no image to click on. There are two main ways you can tell that your Briggs & Stratton governor may need to be adjusted. 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? Start the mower and allow it to warm up under half-throttle for five minutes. 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. Turn the screw counterclockwise one and a half turns. Your question was published, help is on its way! The main reason a governor could require adjustment is simply through use over time. 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. 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