Kohler engine surging at idle

Idle speeds vary from car to car, but for a passenger car, typical idle speeds are between 500 and 900 rpm. An engine idle speed is set by the manufacturing in order to ensure the ...

Kohler 23 Command Bogs Under Load. Did a very extensive search while trying to diagnose the problem so if anyone knows a thread this was already discussed in, please feel free to post it here. Engine is a CV23S-75590 that is brand new which served as a replacement for a 25hp Kohler that was on a Great Dane Chariot w/61 inch deck.Jan 25, 2021 / Kohler 7000 KT725 won't idle, always full throttle. #2. If you done the static adjustment correctly then yes the governor has failed. For guidance only. From service manual. Initial Adjustment Procedure. Make this adjustment whenever governor arm is loosened or removed from cross shaft. Adjust as follows: 1.5 Lubricate threads with engine oil prior to assembly. 6 Any and all horsepower (hp) references by Kohler are Certifi ed Power Ratings and per SAE J1940 & J1995 hp standards. Details on Certifi ed Power Ratings can be found at KohlerEngines.com. 7 CH620/CH640 engines changed from 624cc to 674cc; displacement can be confi rmed on engine ...Update: - I ended up getting the throttle body re-programmed instead of replaced. It drove great for about a week, then I got the surging problem again came back for one day, then disappeared just as quickly. A few days later I got a CEL and "TCS OFF" light on but it drove fine. - So I ordered a used throttle body from a salvage yard ($200CAD ...Bobcat 225 surge at idle. 02-02-2020, 11:03 AM. I’ve got a bobcat 225nt, with kohler engine. Used it yesterday and ran perfect, today it’s surging at idle, but perfect under load. Any ideas? Has new plugs, new fuel and air filter. Edit:... scratch this. I got to thinking about it, and remembered the guy I bought welder from said he cleaned ...Kohler Command 23hp stops running after 3-4 seconds. I have a 1995 Walker MT which has been repowered with a carbureted Kohler Command 23 hp. Recently while mowing the engine stopped without warning. It started up right away but will only run for 3-4 seconds. It doesn't matter if it's full throttle or idle, choke or no choke, fuel tank cap on ...Have a 20 hp Kohler v twin that is surging bad. Smoothes out with choke pulled 1/4 way out. Brand new carb, checked both coils with testers and there both good. All gaskets are brand new. Not sure what to do. The 1st place to look would be debris in the "idle circuit", in the carb.

VIEW PDF. SV620 (Service Manual) VIEW PDF. SV710 (Owner's Manual) VIEW PDF. SV710 (Service Manual) Get to Know your engine. These technical documents and manual will help you learn more about your Kohler engine and help ensure years of …Koehler Courage SV590S idle adjustment I have a cub cadet riding lawn mower with a Kohler courage engine; Engine model number: SV590S and the spec number is: SV590-0220. Carb was leaking so I rebuilt the carburetor. ... If it still surges then you might need to a dramatic governor adjustment to condensate for wear governor wear.Apr 28, 2023 · After reassembling everything with motoseal on the gaskets there is no surging. The mower now runs better than when I purchased it in 2017 with 50 hours on it. No longer needs choke to not stall while engaging the blades... idles and runs smoothly at high idle w/no load. I hypothesize this was leaking on the carb to intake manifold gasket. Surging or erratic idle may also be caused by a faulty carb or vacuum leak. Vacuum leaks are commonly caused by bad carb gaskets or cracked manifolds. ... Kohler Engine Surging Repair. This video covers the complete repair of a surging Kohler engine. Kohler engines are easy to work on, and in many cases, just a few minute’s …However, if there are any leaks, the engine can draw in outside air that hasn’t had fuel added to it, leaning out the mixture. Start by tightening all the bolts around the carburetor: these can work loose after being subjected to engine vibration, letting the carburetor separate from the head. If the engine is still surging, inspect the ...Is your riding mower engine surging mostly UNDER LOAD at MID RANGE THROTTLE / RPM? Check this somewhat hidden and fragile carburetor linkage spring first bef...Surging or erratic idle may also be caused by a faulty carb or vacuum leak. Vacuum leaks are commonly caused by bad carb gaskets or cracked manifolds. ... Kohler Engine Surging Repair. This video covers the complete repair of a surging Kohler engine. Kohler engines are easy to work on, and in many cases, just a few minute’s …

One of the most common issues to plague generator owners is the dreaded “surge” or “revving up and down” of the engine. This can happen when the generator is under load or when it’s simply at idle. As a general rule, a portable generator will surge at idle due to a clogged or restricted pilot jet on the carburetor.When I first fire it up, the mower (Kohler Engine) runs smooth. However, as soon as the motor warms up it begins to surge in a very rhythmic surge and idle back, surge and idle back. If I drive the mower (not idle) the surging goes away and if I engage the blades, the surging goes away. I have put a new fuel filter on, new spark plugs, new fuel ...Stop your Honda engine, Briggs and Stratton engine, Kawasaki, Kohler and any other 4 stroke governed engine from surging. Lawn mowers and pressure washers, g...Feb 18, 2018 / 22hp V-twin STILL surging. Help! #2. that type of surge is normally associated with the idle circuit in the carb. Even though the engine runs at full throttle, you are still running on the idle circuit unless the engine is under load. those passages are normally in the area at or in front of the throttle butterfly if you are ...9,976. Apr 11, 2023 / Cub Cadet ZT1 engine surging problem (FR691V motor) #2. I am leaning toward a bad talk back diode inside of one of the ignition modules. try disconnecting the kill wires and keep in mide that they key won't shut the engine off other than maybe the fuel solenoid preventing fuel flow into the carb.

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VIEW PDF. SV620 (Service Manual) VIEW PDF. SV710 (Owner's Manual) VIEW PDF. SV710 (Service Manual) Get to Know your engine. These technical documents and manual will help you learn more about your Kohler engine and help ensure years of steady performance.2. Sep 4, 2020 / Kohler Courage 20hp idling/revving issue. #3. bertsmobile1 said: The governor inside the engine has left the room. Don't keep playing with it as the broken bits inside the engine can do even more damage. If it is a bicket engine then drop the belts then pull the top closure plate off & replace the governor.Kohler KT725 Surging. I have changed plugs, gas source, filter, fuel pump and carb. Plugs are not fouled and everything looks good but as soon as the engine is warmed up, there it goes. Can anyone help?2857 posts · Joined 2008. #10 · Mar 9, 2017. OR hook up a vacuum gauge into the crankcase. IF the head gasket is leaking into the crankcase and creating a pressure situation instead of vacuum, it will cause the fuel pump to stop working, causing what would seem like a lean condition. Surging.I had the same problem a couple of times on my XT2 with Kohler 7000 series. I ran some Seafoam through it and it stopped the surging. Mine would surge regardless of throttle position, but it was definitely more noticeable when the engine was running slower or at idle. A lot of dust and dirt can collect around the air filter.

Oct 11, 2019 · Lean on the idle circuit causes a surge because the engine without enough fuel on the idle side will start the slow and as it slows it tries to open the throttle which in turn then opens the high speed jet and the engine speed picks back up, and then starts to slow back down and is running lean on the idle circuit and the cycle repeats. 3 days ago · Drain old gas from the tank. Use a siphon if you have one – and save spills on the engine and floor. Add a fuel stabilizer to the gas tank (manufacturer’s recommended mix ratio) and top it with a full gas tank. Run the engine for 2 minutes to circulate the fresh gas. Check for mower engine surging. 56 posts · Joined 2008. #1 · Mar 26, 2010. I just bought a new 07/08 exmark 23/52 lazer hp. Last of the "old style" pumps and hoses. This kohler surges until warmed up, about 5-10 minutes. Dealer says it is normal, I say bull. I have an older hp, same machine with 1300 hrs. and no issues. He put a new carb on it but it still does it.3,135. 1,452 posts. Joined: August 11, 2014. Location: Thorn Hill, TN. #1. Posted May 7, 2016. I just got done mowing and when I parked my 1988 520-HC with the 20hp Onan I noticed the engine was surging at idle between 1500 to 1700 rpm and the vacuum gauge fluctuated between 4 to 13hg. At full throttle it seemed to straighten out and run smoothly.Apr 29, 2020 · Hello everyone. I currently have a BadBoy with a 724cc Kohler. It's 4 years old and has about 375 hrs on it. Change the oil and clean air filter as recommended. Recently after running 30 - 45 minutes, the motor starts surging. RPM's go from 2700 to 3500. It will last about 10 - 15 seconds, then go back to normal. Might do it again in 5 - 10 ... May 26, 2013 · Mar 11, 2012. Threads. 55. Messages. 14,765. May 26, 2013 / LT155 CV15S Surging (I know it's common) #3. If you can get it to run fine a idle, I suspect that your problem is with the high speed circuit in the carb. My suggestion is to have the carb ultrasonically cleaned and install a carb rebuild kit. Agreed, the idle jet is likely the cause. It *is* interesting that choke doesn't help, but if it's really-lean, maybe the choke still isn't enough to change it. I have tried Seafoam for surging engines, once even trying emptying the tank, and drawing "pure" Seafoam into the carb, and letting it sit a few days. Basically what you did. It did not ...Kohler CV730-0017 Sputtering. New problem. 25HP Kohler engine on my GT5000 Sears tractor. Stalled while snow blowing, probably ran out of gas (was low when I started). Filled the gas, now it won't run smoothly (full throttle) without a little choke. The engine surges with no choke.Oct 11, 2019 · Lean on the idle circuit causes a surge because the engine without enough fuel on the idle side will start the slow and as it slows it tries to open the throttle which in turn then opens the high speed jet and the engine speed picks back up, and then starts to slow back down and is running lean on the idle circuit and the cycle repeats. Kohler Courage, 21 HP, 597CC, Carburetor replaced due to failure to shut off fuel flow. Now engine surges, governor won't stabilize at any throttle setting. Starts, runs, develops power fine … read more

Jun 19, 2011 / 25 HP Kolher Comman (Cub Cadet LT1050) Surging acting like out of gas. #6. Make sure your fuel filter is made for a tractor with a fuel pump. If the microns are to fine you will starve the tractor of fuel. I had this happen on one I had to watch the fuel filter for some time before it ran out of gas.

5 Lubricate threads with engine oil prior to assembly. 6 Any and all horsepower (hp) references by Kohler are Certifi ed Power Ratings and per SAE J1940 & J1995 hp standards. Details on Certifi ed Power Ratings can be found at KohlerEngines.com. 7 CH620/CH640 engines changed from 624cc to 674cc; displacement can be confi rmed on engine ...1219 posts · Joined 2011. #1 · May 28, 2023. I have the original M20 on my mid 90's 20G. It has the Walbro adjustable carb. A few months ago it started randomly surging under load so I put on an electric fuel pump for fun and replaced all the fuel hose and the filter. In-tank filter was clean but I cleaned it out with acetone anyway.The surging may be back to what we experienced when the car was new. Surging on Cold starts, during the cold months. We are not getting the surging on cold starts or warm restarts. that we had before the repair-on warm days. Regarding the sometimes rough idle- it is there, but more subtle. It is noticable at.Modular V10 (6.8l) - 99 v10 surging at idle - have a 99 class a motor home with the v10. it just started surging at idle. When i step on accelerator it is fine. No CEL was present but gave me a code of 122 or TPS circuit (A) voltage input low. Unhooked battery and changed TPS. Surge still there.VIEW PDF. SV620 (Service Manual) VIEW PDF. SV710 (Owner's Manual) VIEW PDF. SV710 (Service Manual) Get to Know your engine. These technical documents and manual will help you learn more about your Kohler engine and help ensure years of steady performance.How to Fix a Surging Engine Video. https://www.youtube.com/watch?v=JOI293d8XUg. It's not always a pilot or "idle" jet. …Learn my quick tip on how to fix a surging generator. this is not 100% going to work all the time but it dont take much time to check if this quick tips stop...3. Idle/Pilot Jet Clogged. By far the most common mechanical reason why a generator surges at idle is due to the idle jet being clogged. During the idle cycle, which is just a phrase meaning the components of the carburetor that are functioning while the generator is at idle instead of having a load on it, the idle or pilot jet is responsible ...

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I have had several hard starting/surging engines from different manufacturers. This is usually caused by a partially blocked main jet. If the Kohler is set up like honda/clone engines then there is no external mixture adjustment, only minimum idle speed adjustment.I have a 2003 John Deere riding lawn mower with a Kohler17.5 up engine. It has a engine surging problem at high idle and under load. I've replaced fuel filter and spark plug with proper gap. Made sure no paper lock present. Clean air filter. Ran some gumout fuel system cleaner in fuel tank but it still surges.A Kohler engine backfiring is symptomatic of a number of issues, the most common of which is an ignition system problem. Other causes can be attributed to a lean fuel mixture, incorrect valve lash, intake leaks, and exhaust leaks. The ignition system of a Kohler engine consists of a spark plug, ignition coil, and spark plug wire.Wheel Horse. Engines. Hello -- My friend has a 16HP Kohler vertical shaft on his Craftsman lawn tractor that has started to do something odd that Im hoping the experts here on Red Square have some ideas on. Heres what he described: On start up, while cranking, it is backfiring (through the exhaust) while the throttle ...Wheel Horse. Engines. Hello -- My friend has a 16HP Kohler vertical shaft on his Craftsman lawn tractor that has started to do something odd that Im hoping the experts here on Red Square have some ideas on. Heres what he described: On start up, while cranking, it is backfiring (through the exhaust) while the throttle ...ECH980. Find A Dealer. You got jobs that need some muscle? You're in the right place. The Command PRO® 999cc engine redefines the standard of power and reliability. We overloaded this beast with horsepower and torque to take on any obstacle. And then engineered it with heavy-duty sleeve bearings for extra protection and lasting durability.If you notice surging in your Kohler lawn mower engine, it could be caused by a blocked idle jet or a dirty carburetor. Make sure to check for any unsealed gaps in …Kohler Command pro 15hp that wont idle smoothly. Watch as I show you how to remove and fully clean the carburetor as well and reinstall and tune it.Please su...With 13,000 dealers worldwide, we provide the help you need any time, anywhere. And we're not afraid to go above and beyond to make sure you're taken care of. There's no part we can't get, no question we can't answer. Kohler offers a 3-year guarantee and easy-to-understand manuals for your engine. Find common problems, get help from ...Kohler CV624 20HP SURGING Problem. I have a Craftsman rider with a Kohler CV624 Command Pro engine with awful surging and running problems. The engine will not run unless the choke is pulled fully out and then if sitting under no load the engine hunts and surges. If driving the tractor with choke out the engine runs very well. ….

If a car shakes when it is idling, the cause is usually something happening with the engine, such as needing new spark plugs. The spark plugs provide an electrical arc that ignites...Messages. 10,260. Oct 13, 2021 / Kohler KT740-3011, running rich and rpm surging. #4. First verify you got the OEM 16 853 19-S carburetor as these are non adjustable other than the idle speed. Also make sure the choke is fully opening. IF you got a clone carburetor then it very well could be the problem. B.They'll run less than $20 wholesale (genuine Kohler). A complete aftermarket, Kung Fu carb for a 7000, runs about $50 on Amazon. It's only a matter of undoing 4 screws, throttle/choke links, and the whole intake manifold comes off. The throttle link has a plastic clip on the rod and a small surge spring that needs to come loose.Here is the procedure if you need it; With the throttle control at idle or stop position (not running) push the governor arm to where the carb. throttle shaft is at wide open position. Pay attention to which way the governor shaft the arm is attached to rotates. Now loosen the arm retaining screw and while holding wide open grab the end of the ...Engine and Drivetrain Tech. 262ci Forum (4.3) Surging & Rough Idle - 1994 S10, 4.3L CPI, AT, 2wd. Jump to Latest Follow 22K views ... the surging and rough idle sounds like a vacum leak check around lower intake, TB, hoses, a good rule of thumb is that if you get black crap on your hands after touching the vacum lines they should be replaced ...Does your engine have an anti-icing kit installed. Having grown up in northern Iowa we found icing up in the carb to be a big problem. This can happen in temps as warm as 35-40 degrees. The air is super cooled as it goes through the carb. The crankcase on the kohler engine is attached to the air cleaner system as well.John Deere engine surging is a result of an inconsistent combustion process in the engine cylinder (s). More specifically, it is caused by inconsistent delivery of fuel and/or oxygen to the combustion chamber. The usual problems lie in the air filter, gas cap, fuel lines, or carburetor. As you know, for an engine to fire and produce power, it ...How to Adjust a 25 HP Kohler Governor Engine. Kohler manufactures a wide variety of small engines used in everything from lawn tractors and snow blowers to g...1. Messages. 1. Jun 3, 2018 / Scag Cheetah Kohler 35 hp EFI Engine Surging. #1. Purchased a Scag Cheetah with 35 hp Kohler Command Pro ECV940 EFI engine this month. The mower was a left over from last year. We have used the mower twice on a 4 acre lot. Last night my wife was using the machine when the motor started surging badly.Once the engine warms up and at full throttle the surging is still noticeable. Surging is generally indicative of a lean fuel condition. Be sure there are no air leaks at the intake manifold. The easiest way to check this is to spray Wd40 (or similar) around the intake manifold while the engine is running. Kohler engine surging at idle, Oct 27, 2014 / surging engine problem on a kohler 25 hp Pro #2 Kohler Engines: Owners and Service Manuals: Manuals and Maintenance Locate your engine numbers and click on service manual, troubleshooting section., Oct 27, 2014 / surging engine problem on a kohler 25 hp Pro #2 Kohler Engines: Owners and Service Manuals: Manuals and Maintenance Locate your engine numbers and click on service manual, troubleshooting section., Use the wire from a bread tie to gently clean the inside diameter of the main jet and idle jet. If replacement parts are needed, make sure you write down the numbers from the engine so your dealer can …, 27 kohler sputters at full throttle. I have a 27hp vertical shaft kohler command on a husqvarna zero turn that sputters under load at full throttle. It really slows down, not just an occasional miss. I can back it to about half throttle with the blades on and go easy with the hydros and it will maintain speed. Oil fine. Gas in tanks, valve open., Mar 25, 2009 · Kohler CV624 20HP SURGING Problem. I have a Craftsman rider with a Kohler CV624 Command Pro engine with awful surging and running problems. The engine will not run unless the choke is pulled fully out and then if sitting under no load the engine hunts and surges. If driving the tractor with choke out the engine runs very well. , 10,279. Jan 17, 2023 / Kohler K-735 Idle Speed. #4. Most likely you have a governed idle system. They are designed to operate between 1500 and 1800 rpm. Most have governed idle speed adjustment screw though depending on the control set you might be looking at bendable tang. Note: you don't want to go below 1500 rpm or you will have surging., Sep 1, 2023 · Faulty Fuel Pump: A malfunctioning Kohler fuel pump can cause excessive pressure, forcing fuel out of the carburetor. Troubleshooting Steps. Dirty or Worn Needle Valve, Float, or Gasket: Clean or replace the needle valve, float, and gasket to prevent further leaks. Faulty Fuel Pump: Check fuel pump pressure and regulator. , May 14, 2014 at 18:21. 1. The carburetor has two circuits, a main power circuit and an idle circuit. When the idle circuit gets partially clogged, the governor will drop the throttle shut, the engine partially dies and the governor yanks the throttle back open till the main kicks in. If the idle circuit gets completely clogged, the engine will ..., Engine: OHV17 - 204603A (on a Murry 46" riding mower), D.O.M. 7045 S Problem: Difficulty starting - has to crank over for more than 20 seconds to "catch" and fire, then surges at high idle. idles smoo …, Aug 4, 2021 / Kohler Courage 24hp sv725 engine issue. #2. Sounds to me like your float needle is not stopping fuel flow into the carburetor when the bowl gets full, and then it has filled up your crankcase with a gas/oil mix.. pull your dipstick and smell it and take note of the level. either Rebuild or Replace the carburetor., Outdoor Gasoline and Electric Powered Equipment and Small Engines - Kohler 25hp surging - I have a Kohler engine on a sears mower. It ran out of gas and when it was refilled the engine began to surge up and down at idle and all speeds. ... It ran out of gas and when it was refilled the engine began to surge up and down at idle and all speeds ..., I HAVE A 2006 54 INCH GARDEN TRACTOR WITH A KOHLER 26HP COURAGE ENGINE. ENGINE SURGES IN IDLE. NO POWER GOING UP SLIGHT HILL, SLOWS DOWN ,ALL MOST DIES. ADDED SEAFOAM TO THE GAS TANK. ... I have a Husqvarna riding mower with a Kohler CV15S engine, spec #41597, ser# (XXX) XXX-XXXX. While trying to start it, a large amount of fuel comes out of ..., Help needed with surging Kohler Command V-twin. The 22.5 Kohler Command V-Twin on a Craftsman GT 22.5 tractor has started to surge at mid-rpms. The engine is nearly new, only 20 or so hours on it. When parked last fall, it ran perfectly. Upon startup this spring, it surged at low idle and backfired at the same time., 3. Jun 12, 2016 / Lazer Z surging engine problem. #1. So we just got our first Lazer Z mower this past week! Very excited about it! All we know is that it was used on a gold course and has 2550 hours on it, I think it is a 2012, it is a S series with 72" deck. We changed out the oil and oil filter and the hydrolic fluids and added a gallon of ..., Sep 1, 2023 · Faulty Fuel Pump: A malfunctioning Kohler fuel pump can cause excessive pressure, forcing fuel out of the carburetor. Troubleshooting Steps. Dirty or Worn Needle Valve, Float, or Gasket: Clean or replace the needle valve, float, and gasket to prevent further leaks. Faulty Fuel Pump: Check fuel pump pressure and regulator. , Based on the KOHLER Command PRO® commercial engine design, the air-cooled, V-time 7000 Series will run rings around your neighbors. It features a 3 year, unlimited hour, limited warranty. Specs. Features. Engine Uses. Technical Documents. Parts & Warranty. Follow us on to find the latest updates on our products. HELP. Contact ., The 27 HP Kohler engine is a reliable and powerful choice for use in a variety of small engines, including lawn mowers. However, like any engine, it is prone to experiencing problems from time to time. Some common issues that have been reported with the 27 HP Kohler engine include surging, missing, and backfiring. In this blog, we will explore ..., Kohler M20 Surging issue. I have the original M20 on my mid 90's 20G. It has the Walbro adjustable carb. A few months ago it started randomly surging under load so I put on an electric fuel pump for fun and replaced all the fuel hose and the filter. In-tank filter was clean but I cleaned it out with acetone anyway., Idle speeds vary from car to car, but for a passenger car, typical idle speeds are between 500 and 900 rpm. An engine idle speed is set by the manufacturing in order to ensure the ..., Kohler CV624 20HP SURGING Problem. I have a Craftsman rider with a Kohler CV624 Command Pro engine with awful surging and running problems. The engine will not run unless the choke is pulled fully out and then if sitting under no load the engine hunts and surges. If driving the tractor with choke out the engine runs very well., Kohler engine surging. I took out dad's Gravely from winter storage, sharpened the blade and started cutting grass. It was running smooth, then about 5 minutes in, the rpm started surging. It idles just fine. It surges anywhere above idle. If I hold the throttle on the carb, the engine smooths out and just hums., Summary of Contents for Kohler Command PRO EFI. Page 1 ECH630-ECH749, CH735, CH26, CH745 Service Manual IMPORTANT: Read all safety precautions and instructions carefully before operating equipment. Refer to operating instruction of equipment that this engine powers. Ensure engine is stopped and level before performing any maintenance or service., Kohler engines are renowned for their durability and reliability. Whether you own a small garden equipment or a large commercial machine, ensuring that you have access to genuine K..., 3. Jun 12, 2016 / Lazer Z surging engine problem. #1. So we just got our first Lazer Z mower this past week! Very excited about it! All we know is that it was used on a gold course and has 2550 hours on it, I think it is a 2012, it is a S series with 72" deck. We changed out the oil and oil filter and the hydrolic fluids and added a gallon of ..., I need to stop the surging of this Kohler Courage engine. The carburetor has a NON-adjustable jet so that won't work. But there is a Low Idle Adjustment Needle …, Mar 18, 2018 · It has a Kohler CV-15 single cylinder engine. Last fall it started running lousy and surging, then I couldn't get it to start a few weeks ago. I planned to clean and rebuild the carb, but found a brand new carb for $5 more than a rebuilt kit, and installed that yesterday. Got it started and it runs great but still surges. , Cadence Design Systems (CDNS) Has the Right Tempo for Further Upside...CDNS Shares of engineering and software company Cadence Design Systems (CDNS) have surged in the past couple ..., 423 subscribers. Subscribed. 11. 2.4K views 10 months ago. Are you having to add choke to keep your Cub Cadet running? Is the idle and off idle rpm surging? Well, you have a lean condition..., Nov 25, 2018 · Sno-Tek Snowblower Surges?Today I show you how to fix a Sno-Tek Snowblower surging issue.This also occurs on some Kohlers and Honda engines that use carburet... , I hope one of you fine folks have a suggestion or two for me. I was given a cub cadet ltx1050 tractor with a sv730 Kohler engine. Its 4 years old and has 82 hours on it. A head gasket was blown, so I replace them both. The mower sat for one season. Prior to and post repair, the engine revs up and down at an idle. On WOT, seems to run smooth., Is your riding mower engine surging mostly UNDER LOAD at MID RANGE THROTTLE / RPM? Check this somewhat hidden and fragile carburetor linkage spring first bef..., In this video Shane goes over some steps you can take if your Kohler EFI engine is over fueling on your Brandt auger., After about 20-30 minutes, it sputters bad. The engine sputters, surges to the point where it gets so bad that it has cut off a few times. Last week when I mowed, I noticed that it only really did this when the blades were down/engaged. Raise the blades and the engine ran smooth again. Put the blade down and started mowing and it sputtered and ...