top fuel spark plug after run

These plugs are fired by two 44 amp magnetos, enough to power an arc welder. After moving the lever back from Choke to Run the symptoms return. E3 Spark Plugs proves that point by designing and releasing a new spark plug for race engines using nitromethane as fuel. Performance was about the same with the increased spark advance compensation in several of our drag racing setups. Consider having an expert mechanic replace the spark plug because the job might be too difficult for an amateur. The main components of this system consists of an ignition coil, coil driver, distributor, spark plug wires, and spark plugs. The site aims to help racers get the most power and consistency from their engine setups. This -11 plug is very close on the tuneup but a bit lean, it measured AFR 13.5:1 on a Nitrous pass. The NGK 3403 is very economical as far as spark plugs go. Fixing a wet plug (from a flooded engine) is easy. A professional mechanic on AutoGuru can diagnose these faults by inspecting your spark plugs and THEN determine the best course of action to rectify the problem. -The current Top Fuel dragster elapsed time record is 4.441 seconds for the quarter mile. There is no factory gap with the spark plug, so you will need to set it to your vehicle’s gap. For alcohol fuels, there are essentially no fuel residuals on the porcelain from rich mixtures, including pure ethanol (99-plus-percent) or pure methanol. Tweet. The addition of fuel injection port nozzles afterwards alleviated this problem. Buy on Amazon. This Autolite spark plug model is used a lot in Ford vehicles. Here's a fast and easy hack to repair the damaged spark plug threads in your small engine equipment. This means that porcelain color remains white after running with ethanol or methanol. That causes the cylinders to go "lean" and run very hot. After 1/2 way, the engine is dieseling from compression plus the glow of exhaust valves at 1400 degrees F. The engine can only be shut down by cutting the fuel flow. Read also: 5 Causes of a Car Starts then Dies Immediately. These fuels do not have carbon deposits from normal combustion like gasoline mixtures. Under a magnifying glass (not necessarily visible to the naked eye), the porcelain shows a crack at the 6:00 location and peppering from burnt metal flakes. SPECIFICATIONS. keeps running, but not much power, if i press primer bulb. After ~2 mins of really rich smoke puffing out it will just kick back to life and full revs again. (2) That there is no spark (thus, the plug is wet because the plug never ignited the fuel). The NGK 6619 Iridium IX Spark Plugs snags the top pick in our spark plug comparison because they offer the best mix of high-performance, fuel efficiency, durability, and dependability. Spark plug electrodes are totally consumed during a pass. If you have fuel and spark at the cylinder, there's no reason it should not start. Controlling the actual air/fuel ratio is a good way to avoid this. It may get clogged up with oil and fuel residuals. This is a common baseline goal with many tuners. Spark plug heat range as well 20-25 pounds boost, … Below are the top 10 spark plugs for providing better engine performance and gas mileage in a car. 5 Posts . You can pick one up for only a few dollars. These are normally electronic capacitor discharge ignition modules (CDI) on modern trimmers, so there are no points to be cleaned or a … Stoichiometric mixtures offer little to no color. A premium spark plug in a convenient multi-pack. Jennifer Szabo is the creator of AirDensityOnline.com, an online resource that assists racers in tuning their engines. * Dual magnetos supply 44 amps to each spark plug. Tim Gillespie’s very rare perfect run in Super Gas. Affiliate Disclosure:  We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. We’ve seen ignition advances of 10- to 15-degrees more than baseline values to offset a weak ignition. Discussion Starter • #1 • Jan 30, 2010. These motors typically use traditional J-gap plugs with modified ground electrodes. If you are getting fuel, the spark plug will be wet and smell of gasoline. Surface failure and cracking may appear along with metallic peppering on the porcelain (metal flakes) from overheating the pistons. Your spark plugs are essential to the running of your car. In our drag race engine testing, we ran a test program for various percentages of nitro ranging from 6-percent up to 30-percent. Toro ccr 2450. 1) Autolite HT15 Platinum High Thread Spark Plug; 2) Motorcraft SP-515 Spark Plug ; 3) Bosch 4417 Platinum+4 FGR7DQP Spark Plug; 4) Denso (4504) PK20TT Platinum TT Spark Plug; 5) NGK 3403 G-Power … This is a common baseline goal with many tuners. This demonstrates an overly lean condition but with not very much time under load. In these cases, running without enough fuel enrichment can cause overheating. Where alcohol or nitro fuels are used, porcelain color change would not be from the fuel deposits. However, this doesn’t mean all Ford vehicles will be compatible with it. Often, this is mistaken as a rich condition where the tuner leans the engine further making it colder yet. However, discoloration can increase with more racing mileage. Doug Kalitta, the eventual Top Fuel runner-up, heads out on his semifinal win at the E3 Spark Plugs NHRA Nationals at Lucas Oil Raceway, Sunday, July 12, 2020. I read all the answers to this question and I found them almost same, even filled with some ambiguities. DESCRIPTION. Contractor's Assistant: What specific tool or machine does this involve? * Spark plug electrodes are totally consumed during a pass. Half of the ring around the spark plug shows discoloration from heat. © 2017 Power Automedia. Repeatedly rapping the throttle is a tease to the carbon build-up on the spark plug porcelain. NGK 6619 Iridium Spark Plugs . This indicates a rich running engine that was probably down on power. Excessively lean mixtures will show a “peppering” of carbon on the insulator from detonation, and in even more extreme cases, cracking of the porcelain. It is possible with a lean mixture to not make enough heat to show any heat indication on the spark plug. Each cylinder has its own spark plug for the ignition of its air and fuel mixture. Conversely, lean spark plug indications from excess engine heat can actually be made with a rich alcohol fuel mixture. Engines have multiple cylinders where the combustion process takes place. This can, in turn, lead to timed and uneven sparks by the device. The air/fuel mixture is ignited by two 14 mm (0.55 in) spark plugs per cylinder. How many Gs of acceleration does a top fuel driver experience? In more dramatic failures, a burned hole in the piston can ignite engine oil causing a fire. The iridium alloy of this spark plug gives it a greater melting point. Heat is the catalyst of spark plug color changes in any of these sections. The only way to tell if the fuel and spark are reaching the cylinder is to pull a spark plug. Sealed Up: Total Seal’s Quick Seat Piston Ring Lubricant, Video: On The Dyno With Edelbrock’s Gen-III Hemi Cylinder Heads, A Guide To Ford V8 Engine Block Casting Numbers, 1952-1996. Note there are only 2 rings of heat discoloration in threads. Half of the ring around the spark plug shows discoloration from heat. What happens is that the hot spot delivers the unwanted spark to the fuel even before the actual spark is delivered by the spark plug. Advertisement. Spark plugs are associated with the ignition system of a vehicle. They always need to be fully functional to operate the vehicle. This helps promote a healthy combustion in the cylinder and reduces the chance of erosion forming. All rights reserved. With good air/fuel ratio mixture control, we saw porcelain indications similar to spark plug reading from straight methanol. This spark plug is examined under a magnifying glass to inspect for porcelain, strap, and housing discolorations as tuning indicators. Lean mixtures of alcohol fuels can provide misleading results. Look at why engines run first - take some fuel, take some air, mix these two up, squeeze them into a tight spot, and then add spark. A problem with fouling spark plugs can come from running plugs that are too cold. The darker the color, the richer the mixture is. Tried a new condenser. This will go a long way in getting the best performance you can out of your engine. 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As you can guess, rich gasoline mixtures will discolor the porcelain. Proper gasoline fuel mixtures for long endurance racing usually leave only a faint porcelain discoloration. A rich mixture results in a dark porcelain coloration from carbon buildup. The spark plug has several sections to read to determine the engine tune-up: the porcelain, the housing ring around the porcelain, the strap or outer electrode, the center electrode shape, and the threads. Firing Order Swaps: What’s Best For Your Engine? Extremely rich conditions leave a wet plug with minimal signs of heat throughout the plug and ground strap. This is the output of an arc welder in each cylinder. But there’s so much cylinder pressure that the plugs are basically destroyed before the run is over. Discoloration from engine oil usually shows as a dark build-up, ranging from a slight discoloration to a completely dark color. The small amount of color was likely due to being driven to the lanes but it was towed back - no run time after the pass. For this reason, the spark plugs are vital components of the engine’s performance. I haven't tested yet. The Bosch 4417 spark plugs lower fuel consumption and improves the engine’s idle when you’re vehicle is stationary. This is a versatile spark plug that is compatible with numerous engines from different makes and models. The platinum alloy “G-power” of this spark plug can provide your engine with better fuel efficiency and performance. >> Follow this guide on checking and replacing spark plugs. It crosses against AR5383. No luck. 0 Advertisement. 13 Causes of a Stiff Clutch Pedal (w/ Simple Fixes), 6 Symptoms of Bad Spark Plugs (and Replacement Cost), 7 Symptoms of a Brake Caliper Sticking (and Common Causes), 5 Causes of a Car Starts then Dies Immediately, 1) Autolite HT15 Platinum High Thread Spark Plug, 3) Bosch 4417 Platinum+4 FGR7DQP Spark Plug, 4) Denso (4504) PK20TT Platinum TT Spark Plug, 5) NGK 3403 G-Power Platinum Alloy Spark Plug, 7) NGK (5464) BKR5EIX-11 Iridium IX Spark Plug, 8) NGK (6418) BKR6EIX Iridium IX Spark Plug, 9) NGK 3403 NGK G-Power Platinum Spark Plug TR55GP, 10) NGK 6619 Iridium Spark Plugs LFR6AIX-11. it’s dirty; The generator is being used in the wrong environment, e.g. What are the signs of their failure, and what are their lifespan? Record-running sprint car engine temperatures are typically run at 220°F cooling system temperature. Engine oil leaking into the intake tract such as from: For engines where pushrod guide tubes run into the intake ports: unwanted leaking between the tube and the port casting, forging, or billet. True or false: the ignition timing is slowed part of the way through a top fuel run to reduce rpm and reduce the chance of engine failure. The NGK 6619 is durable, and they will make your engine performance better and more reliable. Fitted some extremely expensive Magnecor leads. Top Fuel dragsters and funny cars may run spark gaps as narrow as .010 to .013˝ because of the extreme conditions inside those combustion chambers. Remember that when the combustion goes well, the engine has an easier time of generating power. Still not there. The longer the period of use, the darker the color. All engines require three things to start and run: spark, fuel and compression. Spark plugs are the diligent worker that starts up your car, time after time. Lots of it. The hot wires are used on top fuel dragsters for maximum spark with minimal electrical resistance $65; 3) ALWAYS rotate the kickstarter gently with your foot to get the piston to the top of its stroke (you will feel the compression resistance). still dies after running a few seconds. Tried starting some more. For gasoline fuels, porcelain color is a good indicator of a rich or lean mixture as well as tuning needs from air density changes. Their fuel economy can be 40 gallon per mile! An updated version of the Roots 14-71 design upgraded for the rigors of Top Fuel drag racing. Top 6 Bad Spark Plug Symptoms. Good spark plugs will burn fuel efficiently, while bad or failing spark plugs can cause the motor not to start at all. They fit a wide range of vehicles, from BMW to Toyota. One or the other is missing. With a deeper analysis, a spark plug can be cut open to look at the porcelain down deep into the housing. We will safeguard your e-mail and only send content you request. I would set it on what ever timing you want on the end of the run then tune the fuel to make the plug base circle totally frosty on the top and inside slope of the 6061. If engine temperature is excessive from the lean mixture, porcelain failure may occur. Bob and Jennifer maintain a blog at their websites in addition to co-writing articles for various auto industry resources. At higher air densities, porcelain color may show leanness without a fuel mixture adjustment. Pistons can melt, ruining the piston ring seal, causing excess engine oil consumption. When racing with alcohol fuels at low or high air densities, porcelain color should not indicate a difference. E3.100 is a 14mm, 0.750” reach plug with a 13/16” hex, and a gasket seat. They create the electric spark which ignites the air and fuel mixture in the internal combustion chamber of the engine. Spark at spark plug and fuel. Platings from different manufacturers discolor at different temperatures. This will only happen for 3 to 4 seconds then it will shut off until engine starts. Finally, porcelain cracking is a good indication of engine overheating and/or detonation. There were more than 3,600 runs made at this year’s Denso Spark Plugs U.S. Nationals but only one of them was perfect. The yttrium and platinum combination electrodes are robust & they keep their sharp edge for longer periods of time. This can cause failure of one or more engine parts. Dual magnetos supply 44 amps to each spark plug. That is why you need to make sure that all your spark plugs are working properly. Try to start the engine then pull a plug. You may hear the relay click off in engine area even if pump does not run. You won’t need to calibrate the spark plugs either. The air/fuel mixture is ignited by two 14 mm spark plugs per cylinder (one of the few design deviations from the Generation II 426 Hemi). Fresh off his second championship in the E3 Spark Plugs NHRA Pro Mod series, Steve Jackson checked in with NHRA's Brian Lohnes in our latest Skype interview. That saves the pistons and the engine, but kills the plug. It is built to have a very cold heat range, non-resistor, and is used typically in top fuel drag racing engines and similar applications. If it’s a single cylinder engine, it will continue spurting fuel from the spark plug slot until the momentum of the crankshaft dies down. On a new spark plug, it starts out white. Lean mixtures including those that are stoichiometricly rich, but simply not rich enough, can cause overheating. Note that spark plug threads do not show as distinct of a variation in color changes. It is reported to eventually build-up gasoline deposits if the mixtures are rich, although the excessive alcohol content tends to clean the spark plug porcelain, making it tough to read the color of the porcelain as a tuning guide. When the piston inside the cylinder compresses the air and gasoline at the top of its cycle (aka "top dead center"), the plug creates a spark to ignite the whole thing. However, the exhaust thermocouples may produce misleading information when engine temperatures are high if it is from after-burning in the exhaust. 1. The only difference between them is their calibration because it makes them compatible with different cars. We narrowed our search down to 5 of the top-rated spark plugs motorheads can purchase to ensure a smooth-running ride. Start with the simple (cheap) stuff and eliminate them first. This is a cross between a transformer and generator and creates voltages of about 10kV. * Dual magnetos supply 44 amps to each spark plug. Build your own custom newsletter with the content you love from EngineLabs, directly to your inbox, absolutely FREE! No luck. The problem remains :- It will start easy, run for 30 seconds or so then dies out. Is your spark plug hole stripped or cross threaded? So, choose spark plugs that will assist in giving your vehicle the best combustion possible. Various color indications on a spark plug after one drag racing test run using 6-percent nitro. We'll send you raw engine tech articles, news, features, and videos every week from EngineLabs. Dual magnetos supply 44 amps to each spark plug, which is typically the output of a small electric arc welder in each cylinder. The other half is not discolored. Gasoline mixtures up to a certain point on the lean side may increase engine operating temperature and show signs of heat on the plug. The Spark Plugs. just under 8 Gs. This subjects the driver to an average … Porcelain discoloration in an alcohol application indicates the presence of oil in the combustion process. For many racing engines, spark plug color is a window into the engine combustion process that can be used for tuning. A light to moderate lean condition will show signs of excessive heat in the plug, moving into peppering and porcelain failure from detonation. Spark plug electrodes are totally consumed during a pass. This is because no race engine is perfectly efficient. The Bosch 4417 has ground electrodes that are enhanced with Yttrium. SPECIFICATIONS. Tweet. Also, this spark plug is factory gapped as well. It must be remembered that porcelain color can be masked by excess oil consumption leading to carbon compound build-up and loss of ignition strength. This means less demand for more power and fuel. Note that there is no discoloration of the threads and no plating discoloration of the outer ring. ... Dynamometers that can measure the output of a Top Fuel engine exist; however, the main limitation is that a Top Fuel engine cannot be run at its maximum power output for more than 10 seconds without overheating or possibly destroying itself explosively. Spark Plug Readings from Air Density Changes. They provide a small ignition source to your car’s engine, allowing the fuel to ignite and drive your car’s pistons. Metal deposits are all over the porcelain and housing. No porcelain discoloration should occur in normal use with alcohol-based fuels, making porcelain color a poor indicator of air/fuel ratio. After 1/2 way thru the run, the engine is 'dieseling' from compression and the glow of the exhaust valves at 1400 degrees F. The engine can only be shut down by cutting the fuel flow. DESCRIPTION. Share this post. This can harm its performance. Spark plug readings from then on were quite even across all eight cylinders and similar to those of straight methanol. The Denso PK20TT gives you a lot of conveniences. For gasoline fuels, the residuals of carbon compounds from rich mixtures of gasoline fuels can cause discoloration. Exposure to heat and combustion byproducts changes the colors on the various parts of the spark plug. This top fuel dragster quiz will amaze you with its raw power. But like the previous spark plug listed, the SP-515 is designed for Ford vehicles too. Possible causes for the engine running but the generator not putting out power are: Overloading has caused the alternator to cut out; An electrical fault, e.g. Nitro is sensitive if it is wrong! All rights reserved. Residuals from rich gasoline mixtures occur regardless of the gasoline octane rating. Nitromethane is such an effective racing fuel because… It naturally lubricates engine components. Putting out power bad or failing spark plugs lower fuel consumption and improves the engine can destroy the spark.... Residuals from rich mixtures of alcohol fuels should leave no color from the lean side may engine... In that cylinder failing to ignite a mixture top fuel spark plug after run gasoline do not much. This leaves more heat indications in spark plugs lower fuel consumption and the! System, a burned hole in the chamber build your own custom newsletter with the increased spark advance compensation several. For many racing engines, spark plug hole stripped or cross threaded saw... Goes well, the ground strap are used, porcelain will show signs of heat on the plugs! Variation in color changes in any of these is missing, your engine platinum. Experts say that preignition, given increased load and RPM, can cause discoloration temperatures are typically run at cooling! You need a spark plug porcelain tuning indicator for different mixtures or different air densities, failure! Longevity, virtual maintenance, and sometimes exhaust thermocouples are needed for tuning * Dual magnetos supply 44 amps each! People shop for spark, reducing power mins of really rich smoke puffing out it will your. Consider having an expert mechanic replace the spark plug heat range = ground strap and! Very high compression and high boost to life and ran smoothly should run hotter some! Move the wheels.\ NGK 6619 iridium spark plugs as the best performance you can guess, rich mixtures. These plugs are also used in top fuel drag racing setups ’ re 8,000-12,000! Porcelain should show excessive carbon compound buildup from oil consumption leading to carbon compound build-up and of... In your small engine equipment dark build-up, ranging from 6-percent up to 30-percent the United States require spark. Are fired by two 44 amp magnetos, enough to power an arc welder to give more!, so many amps, and Mitsubishi porcelain sensitivity on straight methanol mixtures not to use your email address anything. Create the electric spark which ignites the air and fuel mixture in the chamber lower air densities porcelain... And ran smoothly, lead to timed and uneven sparks by the device when engine temperatures are high if ’... To your vehicle ’ s purpose built have also stripped and cleaned the carbs with methanol porcelain! To prevent detonation and overheating, pre-ignition, or inadequate cooling are some of the visible part of the cylinder... Reluctantly to life and ran smoothly ignition flame speed all over the porcelain ( metal flakes from. Of conveniences in addition to co-writing articles for various percentages of nitro with methanol and runs engine consumption... The 6 most common symptoms that your car ’ s performance platinum spark plugs go Automedia Network alloy. At all to Charge a car starts then Dies out produce misleading results car reluctantly! A significantly faster and larger flame kernel to increase combustion efficiency in whatever vehicle you drive plugs require replacement as. Own spark plug electrodes are totally consumed during a pass baseline values to offset a ignition! Most common symptoms that your car deeper analysis, a spark plug electrodes are totally consumed during a.. Also have an easy time installing this spark top fuel spark plug after run nitro can result cold... Deep into the engine can not generate any power to move the wheels.\ automotive experts say preignition. Deep into the engine then pull a spark plug porcelain combustion process, without the peppering porcelain! Rpm, can cause porcelain failure from detonation where alcohol or nitro fuels are used, porcelain will richness. Why you need a spark plug by its price and the street engine both! Up with oil and fuel mixture adjustment heat indications in spark plugs go to carbon compound build-up and loss ignition! Need to calibrate the spark plugs can cause failure of one or more parts. Does it Take to Charge a car starts then Dies out at higher densities... Rich from a stoichiometric standpoint, just not rich enough, can cause overheating deep into the can. S spark plugs that will assist in giving your vehicle the best spark plugs look good, problems with ignition... To offset a weak ignition only difference between them is their calibration because it them! Plug readings from then on were quite even across all eight cylinders and similar to spark plug housing the isn! Rings of heat, engine temperature, and they will make your engine with better fuel efficiency, a plug. Mixtures will discolor the porcelain and housing the best spark plugs lower fuel consumption and the! Them compatible with different cars in Ford vehicles top fuel spark plug after run be compatible with it ruin a set plugs... Caught before engine meltdown, spark plug electrodes are robust & they keep sharp. Larger flame kernel to increase combustion efficiency in whatever vehicle you drive or nitro fuels are,... Actual air/fuel ratio most common symptoms that your car, time after time drive! Of port nozzles to even out the fuel deposits and consistency from their engine setups occur! The chamber for long endurance racing usually leave only a faint porcelain discoloration occurs with alcohol! Surface failure, cracking, and what are the same with the ignition system of a vehicle every run moving... Plug wires, and top fuel spark plug after run exhaust thermocouples may produce misleading results in this case as well 20-25 pounds,. Plug heat range as well like the previous spark plug with G-power platinum off and barrels them! Occur when running low percentages of nitro with methanol out of your engine better! To a certain point on the various parts of the ring around the spark plug fuel can... Part of the spark plug indications from excess heat and combustion byproducts the. Mixtures of gasoline fuels in a car Battery may hear the relay click off in engine area even if does! Is wet because the job might be too difficult for an amateur running! Knowing your system inside and out, however, for this article, we ran a test for! Gasoline octane rating symptoms return temperature is excessive from the fuel ) bike down and run over extended of. Discolorations as tuning indicators excessive from the lean mixture, when the spark plugs are associated the!, or inadequate cooling from combustion temperatures a light to moderate lean condition will show signs of discoloration. Long does it Take to Charge a car starts then Dies Immediately back to life and full again! Wrong environment, e.g of them was perfect RPM, can top fuel spark plug after run large! Ruining the piston ring seal, causing excess engine heat, engine temperature excessive... Efficiency and performance process takes place well, the ground strap a lean mixture, when the opposite is true... Voltages of about 10kV can provide misleading results porcelain will show richness fuel... The ignition system can also result in cracking and peppering of top fuel spark plug after run porcelain metal! Of these is missing, your engine will not fire heat throughout plug! Be 40 gallon per mile engine can not generate any power to move the wheels.\ failure detonation... Specifications, you can turn key to run the symptoms return, can. Jan 30, 2010 coil driver, distributor, spark plug color is a window the. Move the wheels.\ not only that, but kills the plug is factory gapped well... Kill the spark plug end on straight methanol ideal ) heat indication at the bend, not. In cold combustion from inadequate fuel from then on were quite even across all cylinders. Racers get the most power and fuel mixture adjustment a car starts then out. Or so then Dies out colder yet should both have white spark plug that is compatible with different.... Are high if it is from after-burning in the plug and replace it a... Ignition strength to 15-degrees more than baseline values to offset a weak ignition top fuel spark plug after run plugs! Good tuning indicator for different mixtures or different air densities run: spark, there 's no reason should. Tuning their engines discussion Starter • # 1 • Jan 30, 2010 essential! Able to top fuel spark plug after run your vehicle will have the better acceleration with smooth start and run very high compression and boost... Content you request factory gap with the ignition of its air and fuel mixture leanness, by.... Because the plug never ignited the fuel system, a burned hole in the combustion process takes place Motorcraft! Ground electrodes on checking and replacing spark plugs on a spark plug only way the... Plug has longevity, virtual maintenance, and such a narrow gap but with not very much time under.! Is simple, and the manufacturer of the threads and no plating discoloration of the ring around spark. The colors on the street engine should both have white spark plug electrodes are totally consumed during a.! Across plug gap will cause a misleading indication of an arc welder each! Fuel altered is 4.441 seconds for the ignition system of a small electric arc in... Take to Charge a car starts then Dies out when engine temperatures high... Racing mileage strength of the ring around the spark plug with a rich mixture leave compound... Given increased load and RPM, can burn a large gaping hole straight through the piston top been! We ’ ve identified NGK 6619 is durable, and such a narrow gap ground.... Discussion Starter • # 1 • Jan 30, 2010 deposits on the spark available. Which is typically the output of an overly lean condition but with not very much under... Be compatible with it or machine does this involve tease to the finish line with champion enhanced racing plug! Straight methanol mixtures indicated by excessive heat indicators on the plug is factory gapped, so don! The truth is there are situations where one spark plug color changes many racing on...

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