John deere 425 spark plug gap

The John Deere X720 is a two-wheel drive (2WD) lawn and garden tractor from the John Deere X-series. The John Deere X720 garden tractor is produced at the John Deere Horicon Works plant (Horicon, Wisconsin, USA) from 2006 to 2012. ... Spark plug: NGK: BPR2ES: Transmission and chassis: Chassis: 4×2 (2WD) Transmission type: …

John Deere Spark Plug Gap Guide; John Deere Belt Guide; John Deere Blade Guide; About John Deere Mower Blades; AHW LLC - John Deere Dealer ... John Deere Spark Plugs ...D140 Lawn Tractor:Owner Information. D140 Lawn Tractor: Owner Information. Whether you’re a long time owner or just starting out, you’ll find everything you need to safely optimize, maintain and upgrade your machine here. Shop D140 Parts Online. Safety and How-To. Shop Parts Online. Maintenance Parts. Operator's Manual.I switched coils and spark plugs and still no spark on left cylinder. Right cylinder fires with either... Menu. Forums. Today's Posts New posts Search Members Current visitors New profile posts Search profile posts Top Posters of the Month. Marketplace. Register. ... Jun 20, 2017 / No fire on left cylinder with John Deere 425 …There is also a flat spot on the plug from the piston hitting it. UPDATE: Cylinder 1 (non thermostat side) pulled plug, looks like very slight contact with piston, slightly bent .019 gap. Valves lashes were way off on a couple. Cylinder 2 with smashed dirty plug had Exhaust .016 Intake .025 Cylinder 1 with lean plug Exhaust .025 Intake .008John Deere Spark Plug (Champion RV15YC4) - AM38027. Write a Review. Add to Wish List. Email a friend. Your Price: $3.11. John Deere Spark Plug (Champion RV15YC4) - AM38027. Usually available. Brand John Deere.Oct 14, 2013 · 20 posts · Joined 2011. #1 · Oct 14, 2013 (Edited) Whenever my JD445 tractor is running my garage opener remote fails to work. Does anyone know the correct spark plug for a 445, is there a "resistor" version available. Tractor is 1999 John Deere 445 serial # M00445C072571. JD445, Cozy cab, 47" snowblower. and others. This part is no longer available and has been replaced by Champion RCJ8Y. Stens 130-081 Champion Spark Plug RV15YC4 for John Deere. REPLACES: CHAMPION 18, RV15YC4. JOHN DEERE AM38027. KOHLER 5213202-S, 52 132 02-S. STENS 130-558, 130-496. and others.

20 posts · Joined 2011. #1 · Oct 14, 2013 (Edited) Whenever my JD445 tractor is running my garage opener remote fails to work. Does anyone know the correct spark plug for a 445, is there a "resistor" version available. Tractor is 1999 John Deere 445 serial # M00445C072571. JD445, Cozy cab, 47" snowblower.The gap size in John Deere D140 is 0.76 mm (0.030 in.). A spark plug gap adjusts by bending the hook of the ground electrode until the gap between two electrodes is up to spec. If you bought the recommended spark plug, this step won’t be required. For adjustment you need a special instrument called a “ spark plug gapper ;” it’s usually ... This quick parts reference guide will provide you with the most common John Deere 425 Lawn Tractor Parts 54 Mower Deck. These John Deere Lawn Tractor Parts may include: Tune Up Kit, Spark Plug, Mower Blades, Traction Drive Belt, Transmission Belt, Mower Drive Belt, Battery, and Air Filters. If you need help finding John Deere Lawn Tractor Parts ... A skill that is sure to come in handy. When most drivers turn the key or press a button to start their vehicle, they’re probably not mentally going through everything that needs to...Most spark plugs require a 5/8" (16mm) size spark plug socket. This refers to the size of the flats on the spark plug that are in contact with the socket. Where is …

MOTOKU MIA11722 MIA11723 MIA11724 Spark Plug Wire for John Deere Gator XUV Cylinder #1#2#3. 4.5 out of 5 stars 14. $15.98 $ 15. 98. Fuel Filter AM117584 AM118131 Fits for John Deere 425 445 X 720 724 728 734 738 739 RSX 850 860 i XUV 590 620 625 825. ... Terminal Type: Solid Overall Height: Iso Gap: .039" (1.0Mm)-Center …20 posts · Joined 2011. #1 · Oct 14, 2013 (Edited) Whenever my JD445 tractor is running my garage opener remote fails to work. Does anyone know the correct spark plug for a 445, is there a "resistor" version available. Tractor is 1999 John Deere 445 serial # M00445C072571. JD445, Cozy cab, 47" snowblower.John Deere Spark Plug. Champion RC12YC. Normal spark plug gap = 0.030. Quantity required vary by model. Sold individually. Order the quantity required for your machine. Exception: Z245 before serial number 100,000. Z445 before serial number 100,000.Spark plug applications for John Deere equipment (Commercial and Consumer Equipment) The following charts list available spark plugs for most John Deere products. For non-current products, see the appropriate parts catalog.JOHN DEERE WORLDWIDE COMMERCIAL & CONSUMER EQUIPMENT DIVISION OMM154566 H6 M154566 H6 John Deere Z225, Z425, Z445 EZtrak OPERATOR’S …

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Tractor. John Deere lx288 and 425. My 425 was running great then suddenly no fire to left cylinder. I pulled plug wire off no spark so I switched coils,then plugs,then pulser coils and still only right side fires at plug. I cleaned up connections and checked each side of connector for continuity and all connections are good.Upon pulling the plug wires while the engine is idling, a spark of 3/8" or better can be drawn between plug and wire. Idling for a time of 5 minutes or longer is terrible to this tractor. The fuel used is fine for other gas burners such as JD model A and a IH 2444. The fuel is a Amoco 87 octane blend with no alcohol.John Deere Spark Plug (Champion QC12YC) - MIU11193. Write a Review. Add to Wish List. Email a friend. Your Price: $6.55. John Deere Spark Plug (Champion QC12YC) - MIU11193. Usually available. Brand John Deere. Note: See parts catalog for usage.John Deere Spark Plug (NGK BMR2A-10) - AM122402. Write a Review. Add to Wish List. Email a friend. Your Price: $3.52. John Deere Spark Plug (NGK BMR2A-10) - AM122402. Usually available. Brand John Deere.Performing a bit of simple, routine maintenance on your lawn mower will make it last longer, and keep it running smoothly all summer long. From changing the oil and spark plug to c...

1. Apr 2, 2012 / John Deere 425 Engine Problem. #1. 20hp Kawasaki twin cylinder. Engine runs perfect for about 20 min. then will instantly start to spit, sputter, & puff black smoke. If I shut off deck & idler back it usually recovers. Start mowing again, then it will continue to happen on & off.What is the gap for the spark plug on a John Deere trs21 snow blower? ... You can route the belt on the blower attachment of a John Deere 425 lawn tractor by first mounting a 90 degree gearbox .6K views 1 reply 2 participants last post by KB Aug 28, 2015. B. bmwmike50 Discussion starter. 23 posts · Joined 2015. #1 · Aug 28, 2015. can someone tell me the serial number break when the spark plugs change in the 425? looks like there are two different spark plugs they used in the 425. I think they are NGK bmr 4A and NGK bpm 6A ?John Deere Spark Plug. NGK BMR4A. Normal spark plug gap = 0.030. Quantity required vary by model. Sold individually. Order the quantity required for your machine.John Deere Spark Plug (Champion RV15YC4) - AM38027. Write a Review. Add to Wish List. Email a friend. Your Price: $3.11. John Deere Spark Plug (Champion RV15YC4) - AM38027. Usually available. Brand John Deere.Mar 21, 2023 · John Deere 425 tractor engine ... Sparkplug gap: 0.030 inches 0.762 mm: Engine Oil: Oil capacity: 1.6 qts 1.5 L: John Deere 425 Engine: Page information: Alternative Parts. SPARK PLUG. Part Number A-B1BKR6EGP. Select Dealer to See Price and Availability. Quantity. Add to Cart. Alternative parts may offer an economical repair option for your equipment. Alternative parts include John Deere Reman, A&I Products, Vapormatic and Sunbelt Outdoor Products.OEM Fuel Filter John Deere 420 425 LX 172 173 176 F 620 710 911 GX 70 GS 25 F 710 SRX 38 AM116304 ... OEM Champion Spark Plug for John Deere M78543, M87543, RC12YC ...Messages. 24,705. Feb 23, 2019 / John Deere M 425 no spark. #4. The output from any coil & magnet set up is dependent upon two things. 1) the strength of the magnetic field. 2) the speed that the magnet passes the coil. The strength is altered by moving the coil closer or further away from the magnets.

Spark Plugs. *FREE Ground 3-5 Day Shipping with $50 purchase. Applies to orders placed online at Shop.Deere.com. Free Shipping applies to Standard Delivery on orders over $50 sent to a single shipment address in the United States. Qualifying purchase based on pre-tax, post-discount amount.

Buy John Deere Injection Nozzles & Spark Plugs for your equipment. Shop.deere.com has the widest range of John Deere parts available through local dealers! Shop. 0 Items. Shop.deere.com is easy to use. A dirty spark plug reduces engine performance and fuel economy. Having a clean spark plug ensures complete fuel combustion. Complete combustion increases engine performance so you get the most out of your John Deere Equipment. Make sure you replace your spark plugs at the recommended service interval. John Deere Spark Plug Gap Guide; John Deere Belt Guide; John Deere Blade Guide; About John Deere Mower Blades; AHW LLC - John Deere Dealer ... John Deere Spark Plugs ...Tractor. Mahindra 2810 Gear w/FEL. Wow, talk about timing. I was just reading the manual tonight after getting it from eBay earlier this week. Looked it up... Page 74 of my manual: "LX172, LX176, LX178 and LX188: Gap must be 0.7 mm (0.028 in)." It goes on to say "If you have a torque wrench, tighten plug to 20 N.m (15 lb-ft).Jul 7, 2016. #1. For a resistor plug Id use Autolite 388 which is a tad hotter then the stock heat range 386. For a non resistor plug (prob what Id use) Id run Autolite 3116, both are the later smaller 18mm plugs. If it has the big older 7/8 plugs, Id run Autolite 3077 side wire deep reach (if no clearance problems) versus the standard style ...JD_4x2_Gator, JD_4300, JD_425, JD_455 AWS, added JD_455, JD_110, JD_X485(sold) You may find that the engine plug was put in with a helicoil. ... John Deere L & G 318 / 420 / 430. Ticking could be valves or valve train related (push rods, valve seats, valve springs, hydraulic lifters, valves themselves, rockers), could be head gasket …Steps to replace the spark plug in John Deere 100 series – Step 1: Allow the engine to cool down completely before starting any maintenance tasks. – Step 2: Locate the spark plug wire and gently remove it by pulling the boot. – Step 3: Use a spark plug socket wrench to carefully loosen and remove the old spark plug from the engine. – Step 4: …The spark plug gap is an area of open space between the two electrodes of the spark plug. Proper distance for this gap ensures the plug fires at the right time to prevent fouling a...1. Apr 2, 2012 / John Deere 425 Engine Problem. #1. 20hp Kawasaki twin cylinder. Engine runs perfect for about 20 min. then will instantly start to spit, sputter, & puff black smoke. If I shut off deck & idler back it usually recovers. Start mowing again, then it will continue to happen on & off.• Make sure spark plug, muffler, fuel cap and air cleaner are in place before starting the engine. • Be sure all drives are in neutral and parking brake is locked before

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How I added more travel and leveled the 54" deck on the JD 4250:00 Installing the Deck3:10 Adjust total travel9:56 Leveling Deck18:45 Setting gauge wheelsJohn Deere 425 Maintenance Guide identifies service schedule parts, maintenance intervals & common John Deere parts for this model. Email us 24/7 or chat with us live during business hours for the fastest response to your questions.Step-by-step instructions and close up imagery explain the process of changing a spark plug in a D100 Series Lawn Mower.Visit your local John Deere dealer to...John Deere OEM Oil Pump Filter John Deere 320 425 445 455 2500E RX 63 73 75 95 SX 75 95 F 710 911 SRX GX 70 AM107423 ... Champion Spark Plugs for John Deere M78543 ...Gladessf Discussion starter. 11 posts · Joined 2014. #1 · Apr 8, 2014. These plugs don't have more than 20 minutes on them. What could be causing this difference …Messages. 114. May 25, 2018 / John Deere Z425 Eztrak zero turn spark plugs. #1. I'm servicing a JD Z425 Eztrak zero turn mower with a 22 hp v-twin Briggs engine on it. My question is can I run Champion RC12YC plugs gapped at .030 in it? What's you guy's opinion on this? Thanks in advance to anyone who replies.This manual is related to the following products: John Deere z425 User Manual • Fuel system, Fuel types (recommended), Electrical system, Tires, Capacities, Crankcase, Travel speeds at full engine rpm • John Deere Gardening equipment.M805853: Spark Plug. Part Number: M805853. Improved Engine Performance: John Deere Spark Plugs ensure optimal combustion, enhancing engine efficiency. Long-lasting Durability: High-quality materials and construction for extended service life. Easy Installation: Designed for seamless integration with John Deere engines.Buy John Deere Injection Nozzles & Spark Plugs for your equipment. Shop.deere.com has the widest range of John Deere parts available through local dealers! Shop. 0 Items.1. Apr 2, 2012 / John Deere 425 Engine Problem. #1. 20hp Kawasaki twin cylinder. Engine runs perfect for about 20 min. then will instantly start to spit, sputter, & puff black smoke. If I shut off deck & idler back it usually recovers. Start mowing again, then it will continue to happen on & off.The gap size in John Deere D110 is 0.76 mm (0.030 in.) A spark plug gap adjusts by bending the hook of the ground electrode until the gap between two electrodes is up to spec. For that you need a special instrument called a “spark plug gapper;” it’s usually a round piece of metal with varying thickness and thickness markings around its body, …#1. I'm servicing a JD Z425 Eztrak zero turn mower with a 22 hp v-twin Briggs engine on it. My question is can I run Champion RC12YC plugs gapped at .030 … ….

Mar 4, 2019 · John Deere OEM Oil Pump Filter John Deere 320 425 445 455 2500E RX 63 73 75 95 SX 75 95 F 710 911 SRX GX 70 AM107423 ... Champion Spark Plugs for John Deere M78543 ... Correct the gap, if necessary, 0.76 millimeters. Adjust the gap wider with the gap tool on the feeler gauge. Reduce the gap by gently pressing the outer electrode against a clean surface. Thread the spark plug carefully into the LA115 by turning it clockwise. Finger-tighten the spark plug and finish tightening it with the spark plug wrench.Spark Plug Gap 0.76 mm (0.030 in.) And it's actually a motor owned by Briggs and Stratton made by Diatsu. J. jdh2971 Discussion starter. 35 posts · Joined 2014. #3 · Jan 14, 2014. Thanks. Bought this XUV 550 in May 2012 and have had to put plugs in it twice already. Runs like crap in the winter months so hinders my snow plowing.The heat range of a Champion spark plug is indicated within the individual part number. The number in the middle of the letters used to designate the specific spark plug gives the ...Write a Review. Add to Wish List. Email a friend. Your Price: $2.67. John Deere Spark Plug (Champion N11YC) - AT21343. Usually available. Brand John Deere. Note: See parts catalog for usage. Quantity.What is the gap for the spark plug on a John Deere trs21 snow blower? Updated: 12/12/2022. Wiki User. ∙ 12y ago. Best Answer. 20 thousands per JOHN DEERe. Wiki User.If you’re a car owner, you may have come across the term “spark plug replacement chart” when it comes to maintaining your vehicle. A spark plug replacement chart is a useful tool t...Location. Ottawa, Ontario, Canada. Tractor. John Deere 325. just changed my Spark plugs on my JD 325. Champion RCJ8Y. my maintenance manual gives a gap range of .024-.028. any suggestion for the sweet spot. Nov 19, 2020 / Kawasaki 18 hp- Spark Plug Gap #2.I have a 2000 John Deere 425 that I just purchased with a Kawasaki liquid cooled 20HP FD620D engine and I pulled the plugs to check them and the plug on cylinder 2 was smashed down and a indent on the piston. Cylinder 1 piston has slight contact with piston. BPR4ES factory gap is .030 and cylinder 2 plug was .005 and cylinder 1 was .016. John deere 425 spark plug gap, Oil appears in the spark plug well when there is a leaking valve cover gasket or when an O-ring weakens or loosens. Each spark plug has an O-ring that prevents oil leaks. When the ..., Spark Plug Gap Gauge. Despite often being overlooked, the spark plug gap gauge is arguably the most important tool on this list. It measures the gap between the middle pin and the uppermost electrode, both found at the tip of all spark plugs as seen here. Know that different machines will require different gap measurements for their spark plugs ..., Many cities and suburbs rely on urban hunters to keep the deer populations manageable. HowStuffWorks finds out how it works. Advertisement For hundreds of years, America's wilderne..., The S240 model has a gross power of 18.5 horsepower, which is more than enough to mow 1-2 acres of ground without a hitch. This tractor’s engine power enables it to perform a variety of duties in addition to mowing, including mulching, grass stripping, snow blowing, and more. The engine is a gasoline-powered, air-cooled vertical-shaft V-twin., John Deere gives the gap at .030. Change it to .025 and it should start fine. I found a plug gapping guide for the Kawasaki engines and saw the 22 hp EFI were gapped at .025. This was a free fix, if you don't price in the hours of aggravation. One last thing. Should you go to John Deere and purchase new plugs, they are gapped at .030., Setting the Gap on Your Spark Plug. You'll need a spark plug gauge to adjust the gap on your lawn mower's spark plug. Although many small engine spark plugs require a .030 gap, this varies depending on the engine type. You can check this on the engine owners manual. Considering this, do lawn mower spark plugs need to be gapped?, Boot - BOOT-SPARK PLUG: Find parts & diagrams for your John Deere equipment. Search our parts catalog, order parts online or contact your John Deere dealer. Equipment Finance Parts & Service . menu. Purchase from. Select Your Dealer Shows pricing and availability. add. searchNew Parts Search . help_outline. settings. 0. search. New Parts …, Setting the Gap on Your Spark Plug. You'll need a spark plug gauge to adjust the gap on your lawn mower's spark plug. Although many small engine spark plugs require a .030 gap, this varies depending on the engine type. You can check this on the engine owners manual. Considering this, do lawn mower spark plugs need to be gapped?, Picture Note: Side panel removed for photo. 3. If coolant is low, remove coolant recovery tank cap (D). Add 50 percent ethylene glycol (without stop-leak additive) antifreeze and …, A dirty spark plug reduces engine performance and fuel economy. Having a clean spark plug ensures complete fuel combustion. Complete combustion increases engine performance so you get the most out of your John Deere Equipment. Make sure you replace your spark plugs at the recommended service interval. Fits On: Gators XUV 550 XUV 550 S4 XUV 560 ..., Buy John Deere Injection Nozzles & Spark Plugs for your equipment. Shop.deere.com has the widest range of John Deere parts available through local dealers! Shop. 0 Items. Cart. Sign In Shop. Home; Parts. Maintenance & Wear. Batteries; Bearings & Bushings; Belts & Chains; Filters; Fluids & Lubricants ... 'Tis the Season for John Deere. Holiday …, John Deere Spark Plug Replaced by MIU11020 Champion XC12YC or 982 Normal spark plug gap = 0.030. Product information . Technical Details. Manufacturer ‎John Deere : Brand ‎John Deere : Item Weight ‎1.92 ounces : Product Dimensions ‎3.6 x 1.8 x 1.6 inches : Item model number ‎MIU11299 : Is Discontinued By Manufacturer ‎No : …, John Deere 425 Maintenance Guide identifies service schedule parts, maintenance intervals & common John Deere parts for this model. Email us 24/7 or chat with us live during business hours for the fastest response …, Model 445. Make Kawasaki. Model Number FD620D-AS01. D160 Mower/Bagger. 2014 2032R tractor/H130 FEL w/Bolt-On Hooks/54" Snow Plow/iMatch Quick-Hitch/County Line 5' Scraper blade/County Line Carry-All/Artillian 42" Forks & QH Adapter/JD Ballast Box/Frontier SB1164 3PH Blower/Leinbach PHD/Wallenstien BX42 …, The standard spark plug gap for lawn mowers is usually between 0.020 and 0.030 inches. This gap allows the spark to ignite the fuel-air mixture in the combustion chamber. To measure and adjust the spark plug gap, you need a feeler gauge and a spark plug wrench. You should check the spark plug gap regularly and replace the spark plug if it is ..., JOHN DEERE WORLDWIDE COMMERCIAL & CONSUMER EQUIPMENT DIVISION OMM154566 H6 M154566 H6 John Deere Z225, Z425, Z445 EZtrak OPERATOR’S MANUAL North American Version Litho in U.S.A. All information, illustrations and ... • Make sure spark plug, muffler, fuel cap and air cleaner are in place before starting the engine. …, Mar 21, 2023 · John Deere 425 tractor engine ... Sparkplug gap: 0.030 inches 0.762 mm: Engine Oil: Oil capacity: 1.6 qts 1.5 L: John Deere 425 Engine: Page information: , 20 posts · Joined 2011. #1 · Oct 14, 2013 (Edited) Whenever my JD445 tractor is running my garage opener remote fails to work. Does anyone know the correct spark plug for a 445, is there a "resistor" version available. Tractor is 1999 John Deere 445 serial # M00445C072571. JD445, Cozy cab, 47" snowblower., Have absolutely no spark to left cylinder. Replaced plugs, both coils, ignitor, and coil relay. This is 2001 425 2 wheel steering. Also took carb off cleaned and put back on. Only has 572 hours, been garaged since new. Use it strictly for tilling and other implements. Have 1993 with 60" deck for mowing 3 acres., John Deere Spark Plug (Champion QC12YC) - MIU11193. Write a Review. Add to Wish List. Email a friend. Your Price: $6.55. John Deere Spark Plug (Champion QC12YC) - MIU11193. Usually available. Brand John Deere. Note: See parts catalog for usage., OEM Champion Spark Plug for John Deere M78543, M87543, RC12YC Gas Engine Motors. Please review all product information to ensure that this product is compatible with your unit. This is a Quality Champion Brand Product. A Message to the Customer. The ROP Shop staff constantly strives to provide clear and concise product information., Email a friend. Your Price: $3.16. John Deere Spark Plug (NGK BPR4ES) - M805853. Usually available. Brand John Deere. Note: See parts catalog for usage. Quantity. +. , Tractor. John Deere lx288 and 425. My 425 was running great then suddenly no fire to left cylinder. I pulled plug wire off no spark so I switched coils,then plugs,then pulser coils and still only right side fires at plug. I cleaned up connections and checked each side of connector for continuity and all connections are good., Documents. Spark plug applications for John Deere equipment (C&CE)* Spark plug cross-reference chart* Spark plugs*. * Indicates document is directly related to part number. Spark Plug - PLUG, SPARK BMR2A-10 GAP=1.0: Find parts & diagrams for your John Deere equipment. Search our parts catalog, order parts online or contact your John Deere dealer., Model. This is a current model and under manufacturer's OEM warranty. Please see warranty statement and contact your dealer before repairing. Feedback. Find your owner's manual and service information. For example the operator's manual, parts diagram, reference guides, safety info, etc., Picture Note: Side panel removed for photo. 3. If coolant is low, remove coolant recovery tank cap (D). Add 50 percent ethylene glycol (without stop-leak additive) antifreeze and 50 percent water to the bring coolant up to the proper level. 4. Install and tighten coolant recovery tank cap., • Make sure spark plug, muffler, fuel cap and air cleaner are in place before starting the engine. • Be sure all drives are in neutral and parking brake is locked before, If you’re an automotive enthusiast or a do-it-yourself mechanic, you’re probably familiar with the importance of spark plugs in maintaining the performance of your vehicle. When it..., John Deere Spark Plug (NGK TR5) - AM132420. Write a Review. Add to Wish List. Email a friend. Your Price: $3.68. John Deere Spark Plug (NGK TR5) - AM132420. Usually available. Brand John Deere. Note: See parts catalog for usage., Upon pulling the plug wires while the engine is idling, a spark of 3/8" or better can be drawn between plug and wire. Idling for a time of 5 minutes or longer is terrible to this tractor. The fuel used is fine for other gas burners such as JD model A and a IH 2444. The fuel is a Amoco 87 octane blend with no alcohol., MOTOKU MIA11722 MIA11723 MIA11724 Spark Plug Wire for John Deere Gator XUV Cylinder #1#2#3. 4.5 out of 5 stars 14. $15.98 $ 15. 98. Fuel Filter AM117584 AM118131 Fits for John Deere 425 445 X 720 724 728 734 738 739 RSX 850 860 i XUV 590 620 625 825. ... Terminal Type: Solid Overall Height: Iso Gap: .039" (1.0Mm)-Center …, May 16, 2020 · BTW: buy you 2ea. NGK BMR4A spark plug, and gap at 0.024 -0.028 inches. You might need to check the "Pulser Coils" in that engine. Also, at night (dark no light) have another person sat on the seat, and you run the engine to see if that cylinder has spark running down the outside of the spark plug. , I have a 2000 John Deere 425 that I just purchased with a Kawasaki liquid cooled 20HP FD620D engine and I pulled the plugs to check them and the plug on cylinder 2 was smashed down and a indent on the piston. Cylinder 1 piston has slight contact with piston. BPR4ES factory gap is .030 and cylinder 2 plug was .005 and cylinder 1 was .016.