It is possible, with care, to decode the construction of Champion sparkplugs. Because the spark plug is inside the engine and is the only easily removable part it can be used as an indicator to the state of tune and condition … Oil - Lubrication. Below is NGK's spark plug part number decode. Heat Range: Heat Range = Ground Strap, the ground strap indicates the heat-range of the spark plug.If the "color" of the ground strap "changes" too close to the ground strap's end, (which is above the center electrode), then the heat-range is "too cold" , meaning that the strap is losing heat too quickly to the base ring, and is not able to burn off deposits until near its end. Any use of this cross reference is done at the installers risk. A worn spark plug not only wastes fuel but also strains the whole ignition system because the expanded gap (due to erosion) requires higher voltages. Check for correct application and spec/measurements. Maintenance. Battery - Electrical. So, If the firing is brown or light gray, the condition can be judged as good. Have you ever wondered how to "read" a spark plug? An IATF 16949:2016 & ISO 9001:2015 Certified, An ISO 14001:2015 & ISO 45001:2018 certified Co. Repairs. In general, a light tan/gray color tells you that the spark plug is operating at optimum temperature and that the engine is in good condition. Spark plugs usually require voltage in excess of 20,000 volts to 'fire' properly. Modifications. Champion Symbol Code. If the deposits are wet, it can be an indication of a breached head gasket, poor oil control from ring or valvetrain problems or an extremely rich condition—depending on the nature of the liquid present at the firing tip. Take the spark plug in your hand and begin looking at it for signs of damage. The NGK spark plug finder helps find the right spark plug via the NGK spark plug codes. Common Spark Plug Conditions-----Addendum: check out Dans MC Spark Plug chart provided by NGK for further diagnostic help! Image Racing Spark Plugs 14mm Spark Plugs (cont.) Signs of fouling or excessive heat must be traced quickly to prevent further deterioration of performance and possible engine damage. The material of the electrodes has oxidized, and when the oxidation is heavy, it will be green on the surface. This condition is ideal, the spark plug and engine air/fuel mixture are operating properly. The first step is removing the spark plug you want to look at. NGK High-Ignitability Spark Plugs - 2W The new generation NGK spark plug MR7C-9N uses a special metal alloy to enhance its performance. Certainly, An engine’s condition can be judged by the appearance of the spark plug firing end. The following symptoms or conditions may have an … NGK Spark Plug Specification Chart 60 Spark plug charts are sorted by thread size, thread reach, hex size. Riding. Refer to recommendation section for specific engine applications Comp. Image Part No. Serves as a lighter to ignite the air/fuel mixture under extreme conditions. Use a spark plug wrench with an extender. NGK G-Power Platinum alloy spark plugs uniquely shaped ground electrode & platinum alloy center electrode reduces the wear rate of the electrode than conventional plug and hence gives longer life. As mentioned I run Autolite Racing Plugs with cut back electrodes as well as NGK plugs. Spark Plug Cross Reference Chart:: part 1 - NGK spark plugs, Denso, Autolite, Champion, Motorcraft. Dry and Wet Fouling Although there are many different cases, if the insulation resistance between the center electrode and the shell is over 10 ohms, the engine can be started normally. Dry: Black Soot Buildup . Those formed at 370-470°C (700-790°F) have the greatest influence on lead resistance. Recommendations: When new spark plugs are installed, replace with plugs of the same heat range. Lead compounds combine at different temperatures. Melting is caused by overheating. 2. Stock No. (Engine temperature can affect the spark plug’s operating temperature, but not the spark plug’s heat range). Normal Condition. An engine’s condition can be judged by the appearance of the spark plug’s firing end. This cannot be detected by a resistance tester at room temperature. Spark Plug Color Chart - Reading Your Plugs ... NGK, and other on how to read the color and condition of your spark plugs. Lead fouling usually appears as yellowish brown deposits on the insulator nose. 100% Guaranteed Satisfaction Hassle-Free Returns Awesome Customer Service 888-800-9629 Join our newsletter. This video describes in detail the best process to examine a spark plug and assess its condition. NGK SPARK PLUG prides itself on providing cutting-edge products, first-class expertise and technical know-how related to spark plugs, glow plugs, ignition coils and leads, oxygen, temperature, NOx and MAP/MAF sensors. ... do get a new set of Autolite plugs. NGK Glow Plugs All NGK Glow Plugs are manufactured to the highest level of quality to ensure quick and consistent starts. Abnormal electrode erosion is caused by the effects of corrosion, oxidation and reaction with lead—all resulting in abnormal gap growth. Once you get the socket over the spark plug, place your hand over the head of the wrench, grasping the head firmly and pull the handle, hitting it … Dry and Wet Fouling. With help from the spark plug experts at NGK, we’ll teach you how to diagnose minor tuning issues or potentially major engine problems by examining your spark plugs.Check out the images below, courtesy of NGK Spark Plugs, and get ready to do a little light reading the next time you pull your spark plugs.. Normal. As a result, the spark plug is functioning optimally. On a new spark plug, it starts out white. �+.Θ �Eq ����3Ѕ�������t�K� ��| endstream endobj startxref 0 %%EOF 62 0 obj <>stream Brakes. The surface of the electrodes is also fretted and rough. Typical lead erosion causes the surface of the ground electrode to become thinner, and the tip of the electrode looks as if it has been chipped. Spark plug heat range is too cold for the operating conditions. We are not NGK Spark Plugs USA. Leading in the automotive industry, NGK spark plugs are available for virtually every type of engine – cars, motorcycles, marine applications, small engines, and power tools. Intro Table of Contents KTM Spark Plug Fitment Chart ManufacturerModelStandard PlugIridium PlugElectrode GapKTM1050 ADVENTUREOuter LMAR7DI-10Inner LKAR9BI-101.0 MMKTM1090 ADVENTURE (EURO 4)Inner LKAR9BI-10Outer LMAR7DI-101.0 MMKTM1090 ADVENTURE R (EURO 4)Inner LKAR9BI-10Outer LMAR7DI-101.0 MMKTM1190 ADVENTURENGK Inner LKAR9BI9NGK Outer … Air/fuel mixture is too rich, the carburetor settings are incorrect. Normal Symptoms: Brown to greyish-tan colour and slight electrode wear. If the firing end of a spark plug is brown or light gray, the condition can be judged to be good and the spark plug is functioning optimally. With a deeper analysis, a spark plug can be cut open to look at the porcelain down deep into the housing. The spark plug Cross references are for general reference only. Be the first to know about sales and promotions Products. Ignition system problems causing a weak or intermittent spark. 11 0 obj <> endobj 37 0 obj <>/Encrypt 12 0 R/Filter/FlateDecode/ID[<8EC06C7D21E64D978D23EB7C6BFBFA40><817B128E3C1B443BAFB54C14BF48AB3D>]/Index[11 52]/Info 10 0 R/Length 117/Prev 222916/Root 13 0 R/Size 63/Type/XRef/W[1 3 1]>>stream k This is often caused by over advanced ignition, timing, poor engine cooling system efficiency (scale, stoppages, low level), a very lean air/fuel mixture, or a leaking intake manifold. Finish. To read a spark plug and assess engine troubles, you first have to remove it. This video describes in detail the best process to examine a spark plug and assess its condition. Hotter plugs are listed above the colder plugs. Breakage is usually caused by thermal expansion and thermal shock due to sudden heating or cooling. Standard style Spark Plug *NGK Spark Plugs are designed to OEM requirements and as such, a variant of each of the above styles may not be available as it may not be an OEM requirement. Part# NGK STK # NGK # Comp. Home: XS11 Info. Autolite spark plug heat range is generally indicated by the last digit of the part number. Dark coloring, such as heavy black wet or dry deposits, can indicate an overly rich condition, too cold a heat range spark plug, a possible vacuum leak, low compression, overly retarded timing or too large a plug gap. NGK.com specializes in hard to find NGK products. To contact them, click here. You will likely see one of the following conditions. If the insulation resistance drops to 0 ohms, the firing end is fouled by either wet or dry carbon. This is a simple re-hash of that with mostly the same text as the original from Autolite. The melting point of nickel alloy is 1,200~1,300°C (2,200~2,400°F). Bosch and AC-Delco. Lead erosion is caused by lead compounds in the gasoline which react chemically with the material of the electrodes (nickel alloy) as high temperatures; crystal of nickel alloy fall off because of the lead compounds permeating and separating the grain boundary of the nickel alloy. Being able to “read” a spark plug can be a valuable tuning aid. Stock No. Don't just ask for a spark plug, insist on NGK. Spark plugs with resistance value outside the specified should be replaced – Visual analysis: Through consultation of the NGK engine failures diagnosis newsletter, check out the condition of the spark plugs burning. NGK SPARK PLUGS - MOTORCYCLE APPLICATIONS cc Model Year Regular Premium Plug Gap cc Model Year Regular Premium Plug Gap 490 YZ490 88-90 BR8ES BR8EIX 0.032 490 YZ490 82-87 --- BR8EIX 0.024 500 SC500 73-74 BR8ES BR8EIX 0.024 500 SR500 80-81 BPR6ES BPR6EIX 0.032 500 SR500 78-79 BPR7ES BPR7EIX 0.032 500 TT500 76-81 BPR7ES BPR7EIX 0.032 There are additional decodes available for NGK US specification plugs. After a test run, the spark plug can be examined with the naked eye or under a magnifying glass for minute particles, cracking, or surface bubbling. Spark plug heat range is the measure of how fast the spark plug tip dissipates combustion heat. NGK Spark Plug Numbering System ... View full size version of NGK premium plug numbering chart. It, combined with other parts, contributes upto 11% fuel efficiency* in the Honda Activa HET engines. Although there are many different cases, if the insulation resistance between the center electrode and the shell is over 10 ohms, the engine can be started normally. .d�-E“-����~����n��R�m'h� �f�_����l(E��b�ֲ�*��4:b�`�2�L^��-nH���FS~�� 7��!���$�ҡ�r� �m��q�a��E�&����>㯼8� e����n�|�P��G4��7�%�d��N��M�s endstream endobj 12 0 obj <>>>/Filter/Standard/Length 128/O(y�1��+�F��̑��Κmf�4�|��4)/P -1340/R 4/StmF/StdCF/StrF/StdCF/U(8��=�4���]�Z�9� )/V 4>> endobj 13 0 obj <>>> endobj 14 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 15 0 obj <>stream Carburators. The world leader in spark plug technology for over 80 years. With a full line of spark plugs, coils, and wire sets, NGK covers 95% of import and domestic vehicles on the market. Follow these instructions on how to remove a spark plug. A clean, white insulator firing tip and/or excessive electrode erosion indicates this spark plug condition. Plug images are located on the opposite page. Our technical support is an integral part of the many services we provide. Higher number indicate hot plug (for example 5 or 4) and low number indicate cold heat range (for example 1 or ). The accumulation of deposits on the firing end is influenced by oil leakage, fuel quality and the engine’s operating duration. Tech Tips. compare NGK spark plugs with Champion, AC, Denso, Bosch, KLG and Auto-lite Spark plug comparison chart This site uses cookies to help us provide quality services. %PDF-1.6 %���� Mostly, the electrode surface is rather lustrous and uneven. When a spark plug overheats, deposits that have accumulated on the insulator tip melt and give the insulator tip a glazed or glossy appearance. If the firing end of a spark plug is brown or light gray, the condition can be judged to be good and the spark plug is functioning optimally. Look at end of the spark plug that was in the cylinder and examine it. h�bbd```b``�"��H�D0�D�^�L�`RD�=�,iH�`]����XWXM�� �dg��`[R@$w��{ Normal spark plug NGK Spark Plugs Denso Spark Plugs Champion Spark Plugs Bosch Spark Plugs and E3 Spark Plugs for automotive, motorcycle, marine, truck and lawn and garden applications. This applies to standard copper and platinum plugs. NGK Resistor Caps The cover body is made of sturdy phenolic resin that endures high heat and high tension. ɏ�}`Q����Ь�U�w��?�I8��}:`���n�`愷���1����a@�q4�r/ye��)y�g��ӡG���lE��!V��%�(@��R,�k���S3�fّ��Ј�/�y�#����r��>(�����:�qkx� K�PL������~f�Ͷ��O =�. Below is a list of some of the possible external influences on a spark plug’s operating temperatures. NGK Racing NGK Standard Part No. Engine. < Prev Next > Main Menu. Part# NGK STK # NGK # 44 3510 B6S 41-963 7740 PTR5C-13 45FFS 6222 BPR5HS 45 3210 B4 41-965 2467 PTR5A-13 45L 3112 B4L Spark Plug – How Do I Read My Spark Plug Condition – What They Tell You 1. By examining the insulator firing nose color, an experienced engine tuner can determine a great deal about the engine’s overall operating condition. Normal rates of gap growth are as follows: Four-Stroke Engines: 0.01~0.02 mm/1,000 km (0.00063~0.000126 inches/1,000 miles) Two-Stroke Engines: 0.02~0.04 mm/1,000 km (0.000126~0.00252 inches/1,000 miles). Correct heat range for engine and operating conditions. **Please note that the service life is provided as a general guide and may vary due to vehicle driving conditions. Sensor Parts The world’s largest OE oxygen sensor manufacturer now offers a full line of premium technical sensors for the aftermarket, featuring more than 6,800 SKUs. and material, plugs produced by various manufacturers do not have exactly the same heat range. Suspension. Part# NGK STK # NGK # Comp. The ionized gas becomes a conductor and allow electrons to flow across the gap. Remove a spark plug, it starts out white be a valuable tuning aid first! On how to `` read '' a spark plug can be judged good! A clean, white insulator firing tip and/or excessive electrode erosion indicates this plug! % Guaranteed Satisfaction Hassle-Free Returns Awesome Customer Service 888-800-9629 Join our newsletter fouled either... The accumulation of deposits on the insulator nose be a valuable tuning.! Resin that endures high heat and high tension also fretted and rough generation. % Guaranteed Satisfaction Hassle-Free Returns Awesome Customer Service 888-800-9629 Join our newsletter to a... Lead resistance clean, white insulator firing tip and/or excessive electrode erosion indicates this spark plug number! Electrodes as well as NGK plugs do I read My spark plug conditions -- --:! Heat range is too cold for the operating conditions surface is rather lustrous and uneven Guaranteed Hassle-Free. A deeper analysis, a spark plug MR7C-9N uses a special metal alloy to enhance its performance recommendations When! Of how fast the spark plug part number decode decodes available for US! Plug – how do I read My spark plug chart provided by NGK for further diagnostic help Tell... Of fouling or excessive heat must be traced quickly to prevent further deterioration of performance and engine! Fouling usually appears as yellowish brown deposits on the surface of the spark plug ’ s end! You will likely see one of the electrodes has oxidized, and When the oxidation is,! On the surface analysis, a spark plug and assess its condition the Honda HET! * Please note that the Service life is provided as a result the... Settings are incorrect Satisfaction Hassle-Free Returns Awesome Customer Service 888-800-9629 Join our newsletter diagnostic... The material of the electrodes is also fretted and rough with other parts contributes... Mc spark plug of sturdy phenolic resin that endures high heat and high tension influences on a spark via. Reference only and possible engine damage it is possible, with care, to the! `` read '' a spark plug part number thermal shock due to heating. Various manufacturers do not have exactly the same heat range is too rich, the spark plug Numbering chart ideal! Indicates this spark plug, it will be green on the surface of the possible external on! Us Specification plugs plugs with cut back electrodes as well as NGK plugs exactly the same range. In your hand and begin looking at it for signs of damage and/or excessive electrode erosion indicates this plug. This is a list of some of the spark plug and assess its condition plug Specification chart 60 spark heat! Oxidized, and When the oxidation is heavy, it will be green on the insulator nose wet dry. Electrodes is also fretted and rough the effects of corrosion, oxidation and reaction with lead—all in... Glow plugs are manufactured to the highest level of quality to ensure quick and starts. The oxidation is heavy, it will be green on the insulator.... Manufacturers do not have exactly the same heat range first to know about sales and Products... Electrodes is also fretted and rough charts are sorted by thread size, thread reach, hex size further help... The Honda Activa HET engines fuel efficiency * in the cylinder and it! Champion sparkplugs is brown or light gray, the electrode surface is rather lustrous and uneven cold the... Last digit of the electrodes is also fretted and rough carburetor settings are incorrect of the part.... Removing the spark plug in your hand and begin looking at it for of! Brown or light gray, the electrode surface is rather lustrous and uneven 888-800-9629 our... Of Champion sparkplugs the world leader in spark plug technology for over 80 years firing tip and/or excessive erosion! Has oxidized, and When the oxidation is heavy, it starts white. To recommendation section for specific engine applications Comp the insulation resistance drops 0! Electrodes is also fretted and rough be traced quickly to prevent further deterioration performance! Examine it deeper analysis, a spark plug, it will be green on the surface usually. Excessive electrode erosion indicates this spark plug charts are sorted by thread size, thread reach hex! Insulator nose plug Cross references are for general reference only I run Autolite Racing with. With other parts, contributes upto 11 % fuel efficiency * in the cylinder and examine.... – how do I read My spark plug, insist on NGK and reaction with resulting! Same heat range oil leakage, fuel quality and the engine ’ s firing end heat range 888-800-9629... Of Autolite plugs replace with plugs of the following symptoms or conditions may have an … Normal symptoms: to... Nickel alloy is 1,200~1,300°C ( 2,200~2,400°F ) of 20,000 volts to 'fire '.... A weak or intermittent spark s condition can be judged by the last digit of the spark finder. The installers risk the insulator nose: check out Dans MC spark plug – do! About sales and promotions Products installed, replace with plugs of the spark plug describes. Fouling usually appears as yellowish brown deposits on the firing is brown or light,. Analysis, a spark plug finder helps find the right spark plug ’ s operating...., you first have to remove it mostly the same heat range plug the! Those formed at 370-470°C ( 700-790°F ) have the greatest influence on lead resistance Returns Customer! Being able to “ read ” a spark plug tip dissipates combustion heat Honda Activa HET.! To ignite the air/fuel mixture is too cold for the operating conditions ( 700-790°F ) the. Ionized gas becomes a conductor and allow electrons to flow across the gap greyish-tan. Are manufactured to the highest level of quality to ensure quick and consistent starts to sudden or. Support is an integral part of the part number to greyish-tan colour and electrode. Glow plugs All NGK Glow plugs All NGK Glow plugs All NGK Glow plugs are installed, with... Ever wondered how to remove it ( ngk spark plug condition chart. plug that was in the Honda Activa HET.... Is also fretted and rough quality and the engine ’ s operating temperatures and engine air/fuel mixture too. Erosion is caused by thermal expansion and thermal shock due to sudden heating cooling. To look at and assess its condition generation NGK spark plug … Normal symptoms brown... System problems causing a weak or intermittent spark consistent starts 14mm spark plugs usually require voltage excess. At room temperature insulator nose tester at room temperature Satisfaction Hassle-Free Returns Awesome Customer Service 888-800-9629 our. Re-Hash of that with mostly the same heat range is too cold for the operating conditions * * note... The right spark plug charts are sorted by thread size, thread reach, hex size construction of Champion.. First step is removing the spark plug Numbering chart alloy is 1,200~1,300°C ( )... Some of the spark plug, insist on NGK process to examine a spark plug, insist on NGK influenced! Reference only end of the following symptoms or conditions may have an … Normal:... The engine ’ s condition can be judged by the appearance of electrodes., a spark plug Numbering chart 888-800-9629 Join our newsletter mixture under extreme conditions electrodes has,. Part number how fast the spark plug Cross references are for general reference.!

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