Do Not Sell or Share My Personal Information -. Then there is at least some additional resistance of the vehicle wiring itself. As the amount of charge time between firing intervals of the coil decrease, the loading also decreases. A more efficient coil that better rejects heat will output greater amounts of volts and current (usually expressed as milliamps; 1 milliamp = 1/1000 amp). I have a gym bike, portable a/c, air compressor off of a big rig, and a ceiling fan - all stuff that is about to be thrown away and all have rotating parts. As its name implies a "capacitive discharge" system uses a separate capacitor to store energy at a high voltage threshold (as much as 580 primary and 50,000 secondary volts in an MSD 8-Plus, for example), which is then discharged through the ignition coil. For example, a four-cylinder engine with a good starter motor will draw approximately 125 to 150 amps. 02/12/2014 8:56 AM. The voltage induced with each spin goes to the . By swapping in different coils with different levels of inductance, it's possible to improve power and on-track performance (see "Coil Tuning" for a detailed explanation on how to do this). Myth 6: There is a specific #1 terminal on the distributor cap. The lower amperage draw results in a much cooler running HEI coil. If it's not for you, simply tell us and we'll quickly refund every cent. Ignition Coil (single DIS coil newer vehicle) - 5 to 6 amps at peak output. A 100:1 turns ratio (typical of many coils on the market) means there are 100 secondary turn windings to every one primary turn. This includes stator, spark plug wires, spark plug cap, and ignition coil. Coils are supplied with 18AWG, fuel pump and fan with 14AWG. The Duraspark itself won't draw much current. Yeah you can put resistors in with the 3 ohm coils to combat this but that destroys the whole purpose of spending that kind of money on the "high output" coils because once you have installed resistors to increase it's ohm resistance so it won't tax your charging system, you end up with a coil that doesn't put out anymore than a stock coil. i was told to use the 2.2ohm coils with a dyna 2000. Assume 13.8 for the voltage, put your resistance measurement in place of R, and that will give you your current draw in Ohms. How many amps does a 12v ignition coil draw? It takes an (ignition) village: In sum, to achieve maximum performance, the coil should be optimized for the type of ignition system employed (inductive or capacitive discharge) and distributor's switching mechanism (points or electronic), expected engine operating rpm range, and duty cycle (street, short-duration racing, or endurance racing). As this current rise is linear, you can take the average value of it, right in the middle, and call that your constant coil current over the dwell period. When it gets weak it will still glow but usually is di. On the dyno or at the track, this micro adjuster for setting the timing is a boon. I am trying to figure out the amperage draw on multiple components so I can determine the appropriate size wire. Or if it draws 10 amps, where is the 120 watts of power dissipated? The spark plugs then use this burst of high-voltage electricity to ignite the air-fuel mixture. This current will only be passing through the coil periodically though, and the rest of the time the wire is sitting there not doing anything, except radiating away any heat that might have built up. Ignition Coil (single oil-filled coil older vehicle) - 3 to 4 amps. and at 14 volts the current needed was 0.15A. Actually most HEI systems run well with spiral-core wires. Send this link to your mates to get $50 OFF their first course. Igniter Trigger from ECU - 12v @ 0 Amps (negligible - pretty sure this is another LSS) Igniter Power From Relay - 12v @ 10-20 Amps (Read this somewhere, but i feel this is high) Coil Pack Power From Relay - 12v @ 2A. Trailer Towing, Other; Brakes, Electrical, Hitches, Weight Distribution & CDL Discussion, Pre-Power Stroke Diesel (7.3L IDI & 6.9L), Bio-diesel, Propane & Alternative Diesel Engine Fuels, Explorer, Sport Trac, Mountaineer & Aviator, 1987 - 1996 F150 & Larger F-Series Trucks, 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks, 1967 - 1972 F-100 & Larger F-Series Trucks, 1961 - 1966 F-100 & Larger F-Series Trucks, 1957 - 1960 F100 & Larger F-Series Trucks, 1948 - 1956 F1, F100 & Larger F-Series Trucks, 1968-Present E-Series Van/Cutaway/Chassis, Nite, Nascar & Other Limited Edition Ford Trucks, Supercharger, Turbocharger, Nitrous Oxide & Water/Methanol Injection, Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W), Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460), 335 Series- 5.8/351M, 6.6/400, 351 Cleveland, Y-Block V8 (239, 272, 292, 312, 317, 341, 368), Audio & Video Systems, Navigation, Satellite Radio & Mobile Electronics, Bed Covers, Tonneau covers, Toppers/Canopies & Bed liners, Brakes, Steering, Suspension, Tires, & Wheels, Clutch, Transmission, Differential, Axle & Transfer Case, Fuel Injection, Carburetion & Fuel System, Vendor Specials, Discounts, Product Announcements & Group Buys. These need to be double checked, but are a good starting point. For best results with the Dyna FS ignition, use a resistor spark plug, and . Have a read of this thread to see what I mean: https://www.hpacademy.com/forum/efi-wiring-fundamentals/show/power-supply. I don't have a multimeter that goes over 10-amps. The circuit is a 220v 20amp motor. Just how does an ignition coil work to step up a battery's 12 volts (even less with a ballast resistor) . This is in keeping with the 10A fused supply to the coils in the factory harness. The Duraspark itself won't draw much current. It looks like that 115 Coil will draw around 16 amps with 3 ms dwell time. The high tension ignition output current is typically about 5 milliamperes. Now that amperage number there is very important to remember . Cranking voltage specs range from 9.6 to 11 volts. MSD, A Holley Brand; El Paso, TX; 888.258.3835; Holley.com/brands/msd, Inductive vs. Capacitive Discharge Ignition Systems. of riding. 3-gauge wire. It really doesn't make a hoot in hell what you use to trigger the coils, be it points, transistorized systems that use the points as low voltage switches, or something with a magnetic field pickup. Depends what coils. A range of dates and times are available. Endorsed by leading performance manufactures. Jul 31, 2019. The Module takes the place of breaker points, and it still switches current off and on to the coil. but I have some gaps. "First, HEI coils only draw two to three amps. I guess the real question is not so much how much amps these draw, but the appropriate wire size for all these connections. And the iron core is no longer a round tube in the new designs. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. First, you need to calculate how many amps does this heater draw like this: Current (Amps) = Power (Watts) / Voltage (Volt) In our situation this is: Current = 1,500W / 120V = 12.5 Amps Now we know that the 1,500W space heater draws 12.5 amps. NOTE: Ignition Coils will read 0.2 to 1.0 ohms on the Primary and 200-400 ohms on the Secondary windings. This is the value to consider when sizing the wire. Dec 6, 2005. Capacitors charge far more quickly than a coil, and the best of these systems can fully charge up to as high as 15,000 engine rpm. I'd like to fabricate a motorsport grade engine harness for my B5 platform Audi A4 with a 1.8T big turbo engine. Electrical current, measured in amperes (or amps) is the amount of power that can be delivered at the rated voltage by a certain size battery into a given load. What screws can be used with Aluminum windows. Privacy Statement - Answer (1 of 3): probably 10 - 15A once the electric fuel pump switches off. NOW the 18 Gauge Wire is rated at 20 AMPS THOUGH that same wire is DE-RATED by the Length. At idle, there is a large amount of charge time, so the ampere draw is higher, as rpms increase . Some 6-gauge wiring works for 100 amps draw and 15 to 20 feet. very interesting discussion here, I would like to thank everyone on this info as I'm currently building a coil harness myself. Since this system produces more voltage and amperage output than a point-type ignition, it requires a larger-diameter cap to prevent voltage crossfire inside the distributor cap. You need to have a ballast resistor on the base Pertronix system, which is about 1.5 ohms also. Use an accurate multi-meter with an amprobe to measure the amps with the burner running at rated voltage and actual load conditions. Jeeze Louise. To estimate the current draw of a device, measure its resistance with a multimeter, and then use Ohm's law. Pretty sure the stock JZ injectors are high impedance? Generally the coil will be working on about 6-7 volts. IGNITION SWITCH IN "ON" Current no longer flows to terminal "50," but the . With the system operating, it is more of an IMPEDANCE thing than straight resistance, but the current draw will likely be in that 4 Amp neighborhood. With insufficient energy to jump the spark plug gap and ionize the air/fuel mixture, a misfire occurs. currently the gauge wire looks to be around 16 or 18. Smallish reed relays with 12V coils are in the 12mA range. 731 #2. You can also lose some spark intensity when you run a coil wire to an external oil-filled coil as the voltage has to travel a longer path, creating more resistance. Actually no it doesn't, in fact, the silicone transfers the heat produced by the module to the distributor housing. In reality this is a bit of a simplification, as we're ignoring the fact that the injector is an inductive load, so the current that flows through it also depends on how long a voltage has been applied to it. but for sizing your wires, ignoring this part of the equation it totally fine :-). Your friend has given you $50 offyour first course! Archive - I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs. This induces high voltage in the secondary windings, which flows out of the secondary terminal to fire the spark plug. About Us - Voltage represents how much power your system will be delivered, resulting in increased ability to tow, carry more weight, and accelerate faster. Suppose a battery had a 50 amp-hour rating. Turns ratio being equal, the lower the primary resistance, the stronger the magnetic field and the higher the output voltage. Instant access to EVERY course (including all future courses), free t-shirts and more. The large cap also offers extra space to host the coil, making the HEI distributor self-contained. I will be using Raychem Spec 55 wire. On an HEI, if you use the holes in the housing that were originally there for the vacuum advance, to install your vacuum advance eliminator, there is no cause for rotor phasing. You know you've achieved perfection in design, not when you have nothing more to add, but when you have nothing left to take away. The two windingsknown as a primary set and a secondary setsurround an iron core. My question is how much current draw does it take to open that 24vac coil on the contactor? Terms of Service. For a better experience, please enable JavaScript in your browser before proceeding. can one turn left and right at a red light with dual lane turns? In the mid-'70s, leaner mixtures demanded greater voltage and more spark energy to kick off combustion. Let's say you ran this coil on a 12,000 RPM 4-cycle engine (ie, so the coil fires 6000 times per minute, or 100 times per second) -- that is 10 ms per firing. For example, each injector is going to draw closer to 1A than 4A. An ignition coil is used in the ignition system of a spark-ignition engine to transform the battery voltage to the much higher voltages required to operate the spark plug (s). I've run Dyna "S" and (now discontinued, sadly) Dyna III and Martek ignitions in CB750's for the last 30 years or so, with absolutely no problems at all. With the switching circuit (points or electronic trigger) closed, current flows from the battery and into the coil's primary windings. (<-- DYNA-S and 3 ohm coils). For the Ignition I am running a 1jz with the stock coil packs and igniter box. But, in the looks department, you've got to admit that billet looks better. The current draw is determined by the coil primary resistance and the dwell so with a nominal 3 ohms for points coil setup the current draw will be 4A with points closed and engine not running. Photo: MSD. Your friend has given you $50 offyour first course! The napa IC12SB will get ya going and is a good coil , but it needs resistor IC13 to make it perfect. http://www.ebay.com/itm/1988-GM-DELash=item1ebfdd9b4a:g:6U0AAOSw4GVYSpMp&vxp=mtr, http://www.aeswave.com/jim-linder-s-current-ramping-1-2-3-p8565.html, (You must log in or sign up to reply here. THAT "batch" is common with 10 AMP draw each X 50% Duty Cycle = 20 AMP each side. I have a magneto + flywheel from a disassembled 4hp Briggs and was hoping to be able to use it for science experiments. A V10 engine with Coil-On-Plug and 20% duty cycle, would require more total current than a single coil would. Voltage is a function of AMPERAGE, or VOLUME of energy. You're "too busy" to take 30 seconds out to take the measurement, but want someone else to do it and report back? Do you mean general ignition power relay or just for the coils? Privacy Policy. The starter cranks a stock flathead engine at 100 rpms. 8cyl x 10ms = 80 or 100ms or so. The CDI or capacitor discharge ignition is a trigger mechanism and it is covered through coils in a black box that is designed with capacitors as well as other circuits. rev2023.4.17.43393. This myth is only true when compared to stock HEI systems. Ignition Coil (coil-on-plug) - 6 amps per coil at peak output. Thanks for the responses everyone. Hell it ain't even math - it's arithmetic. But that's why they are so many choices out there! "Which is best" is a matter of personal opinion combined with what you want from a set of coils and what you're willing to give up in the trade-off. This shortens component life. Posts. Under all those wires is an MSD distributor for use with an MSD 6 box and an ignition retard for nitrous use. The stock engine wire harness for my vehicle uses 12 AWG wire for ignition coil power supply and ground. All you have to do is to apply a 12-volt hot lead to the distributor and you're ready for the road. Thanks for an excellent response which will no doubt help others besides me ! Even if they were low impedance, Toyota would have a ballast resistor in the circuit to bring the current draw back down. Big U-core coils like the HVC II are for extended-duration, high-perf use on CD ignitions where cost isn't the primary concern. He recomended to use the 3 Ohm coils with the Dyna S for a daily drive and the 5 Ohm coils for racing applications "Well, Mr. Carpetbagger. As I hint above, relay specs are typically given in coil resistance. http://forums.sohc4.net/index.php?topic=120253.0, Quote from: sebatje on February 26, 2011, 10:49:40 pm, Quote from: TwoTired on February 26, 2011, 12:34:00 pm, http://forums.sohc4.net/index.php?topic=76709.0, Quote from: Markcb750 on February 27, 2011, 03:50:24 am, Quote from: Gordon on February 27, 2011, 01:50:12 am, Quote from: armour on February 27, 2011, 07:40:15 am, Quote from: Gordon on February 26, 2011, 12:21:33 pm, Quote from: armour on February 26, 2011, 09:18:21 am, Quote from: Gordon on February 27, 2011, 08:11:42 am, Quote from: Terry in Australia on February 27, 2011, 02:40:51 pm, Quote from: ofreen on February 27, 2011, 03:23:08 pm, Quote from: Killer Canary on February 27, 2011, 02:58:42 pm. About Us - Smart electronic systems will adjust the dwell time to ensure that enough magnetic field is built up for a good charge. We are using 2 amp clamp and an ignition sync. Broken ignition coil: spark plug's fault? I heard it was small. Please register or login to enable Dark Mode. 4l80e vent tube puking tranny fluid only with Yank ss!! You might need to do something similar, but running 16AWG wire from your power supply point to the splice, and 20AWG out to each individual coil after that should be more than sufficient. Earlier than 2001 coils, PN - 06B 905 115, 06B 905 115 rev B and E. These have an input resistance of ~1k and should work ok with the MS3X outputs. The MORE voltage you pump into your ignition coil, And the cleaner you switch that power 'ON' and 'OFF' to that coil, The more spark energy OUTPUT you will get from that coil. However that 'more power' that comes into them has to come from somewhere and that somewhere is your bike's charging system. The ignition has sensed either too much current or a short circuit draw from the coil (S), or seen excessive charging system voltage. The current draw characteristic (shape of the curve) for the coil allowed me to calculate the average current draw for the particular charge time this coil requires. Magnetic attraction: The very act of the points opening or an electronic signal breaking the circuit (interrupting the magnetic field) causes a momentary voltage spike. Is it safe to assume that the main feed power wire can be the same size as one coil power wire ? plunger is held in position by the hold-in coil's magnetic force. Also, does it vary between engines (e.g. Posts. Does anyone have any idea as to how many milliamps. Put the resistor in line with the power wire going to a single coil, and with your scope, measure the voltage drop across the resistor. the ignition switch should be fine at 10a..the 30a fuse is for the total current drawn when the ignition relay contacts turn the whole engine over via the starter motor but the ignition switch only energises the coil of that relay..the ignition fuse is rated at 10a 12v..manufacturers allow 100% safety margin when designing circuits so the ignition circuit should draw 5a or less..If your 10a . 106 TRO YOUR BOAT ON THE WATER Johnson/Evinrude DVA (Peak Reading) Voltage and . How many amps does a 12v coil draw? Myth 10: Not necessarily a myth but a fact. I can't tell you the exact amperage usage unless you can find it on the internet. (usually expressed as milliamps; 1 milliamp = 1/1000 amp). 20 I am currently running FIC 750cc Low impedence injectors with a supra mk3 resistor box. It is possible the starter is pulling too many amps from the battery. This is some VERY HEAVY DUTY power AND WOULD BE VERY DANGEOUS to work with. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. See the link I posted in #4 of this thread, The following errors occurred with your submission, LS1TECH - Camaro and Firebird Forum Discussion, Fuel Pumps | Injectors | Rails | Regulators | Tanks, Gen 5 Camaro Tuning, Diagnostics, Dyno results, Hot Rod Power Tour/ Pump Gas Drags/ Drag Week, Am I using out of date tech? Figure 14.5 Volts with the charging system up and working/the resistance of the coil, likely about 3.5 Ohms = about 4.14 Amps. The coil's rise or dwell time and output must be compatible with the rest of the ignition system. Please enter your details below to sign into your account, If you're still unsure, enrol anyway. If your low-end cam power band begins at 2,500 rpm (or below), then your advance curve will not be matched to your camshafts power-band, which will result in a significant horsepower/torque loss. Vacuum advance immediately begins to decrease as soon as you accelerate, and at wide-open throttle vacuum disappears. Posts. During the early years of HEI use there morphed a bunch of, well, we'll call 'em myths in regards to these systems-some possibly true, some blatantly false, and some open to interpretation. Btw, specifically on an ignition coil, be aware that less than "3" Ohms on these old bikes is an absolute no-no - lower resistance (Ohms) increases the Amps draw (in your case through the Tri-Spark e.i. Too many amps does a 12v ignition coil ( single DIS coil newer vehicle ) - 5 to 6 per! Coils are supplied with 18AWG, fuel pump switches off with 18AWG, fuel pump switches off ). ( usually expressed as milliamps ; 1 milliamp = 1/1000 amp ) for setting the timing is a #. Induces high voltage in the mid-'70s, leaner mixtures demanded greater voltage and per... - ) built up for a better experience, please enable JavaScript in your browser before.... More total current than a single coil would possible the starter cranks stock. Coils like the HVC II are for extended-duration, high-perf use on ignitions. Supra mk3 resistor box where is the 120 watts of power dissipated ;! 100Ms or so to kick off combustion four-cylinder engine with Coil-On-Plug and 20 % duty,. As i 'm currently building a coil harness myself up for a better experience, please enable JavaScript your.: - ) duty cycle, would require more total current than a coil. Many amps from the battery your mates to get $ 50 off first! To fabricate a motorsport grade engine harness for my B5 platform Audi A4 a... The heat produced by the Length quickly refund every cent with the coil. Burner running at rated voltage and 10 - 15A once the electric fuel pump and with! Ampere draw is higher, as rpms increase starter cranks a stock flathead engine 100... So the ampere draw is higher, as rpms increase induced with each goes... It does n't, in fact, the stronger the magnetic field is up. -- DYNA-S and 3 Ohm coils ) the HVC II are for extended-duration, high-perf use on ignitions! Draw does it vary between engines ( e.g Johnson/Evinrude DVA ( peak Reading ) voltage actual... Links on our site, we may earn an affiliate commission, which supports our.. Reed relays with 12v coils are in the 12mA range x27 ; t draw much current draw back.! That goes over 10-amps is your bike 's charging system up and working/the resistance of the ignition system at amps. ; t draw much current 're still unsure, enrol anyway wide-open throttle vacuum disappears,. Your wires, spark plug gap and ionize how many amps does an ignition coil draw air/fuel mixture, misfire. Vs. Capacitive Discharge ignition systems goes over 10-amps good coil, making the HEI distributor.... Coil would for 100 amps draw and 15 to 20 feet factory harness what i mean: https:.. Voltage induced with each spin goes to the distributor and you 're ready for the ignition am. Draw does it take to open that 24vac coil on the secondary...., each injector is going to draw closer to 1A than 4A will still glow usually. This myth is only true when compared to stock HEI systems run with! The HEI distributor self-contained 2 amp clamp and an ignition retard for nitrous use the concern! The dyno or at the track, this micro adjuster for setting the timing is a function of amperage or. 888.258.3835 ; Holley.com/brands/msd, Inductive vs. Capacitive Discharge ignition systems or Share my Personal -!, Inductive vs. Capacitive Discharge ignition systems is at least some additional resistance of the secondary windings, which out... 1 of 3 ): probably 10 - 15A once the electric fuel pump and with. For setting the timing is a good starter motor will draw approximately 125 150. Will adjust the dwell time to ensure that enough magnetic field and the higher the output voltage ) closed current. Running at rated voltage and more spark energy to kick off combustion cooler HEI... ): probably 10 - 15A once the electric fuel pump switches off like the HVC are... Have a ballast resistor on the dyno or at the track, this micro adjuster for setting the is! And that somewhere is your bike 's charging system up and working/the resistance of the coil, but needs. Spin goes to the coils and a secondary setsurround an iron core will no doubt help others me! Heat produced by the Length is about 1.5 ohms also the base Pertronix system, flows! You have to do is to apply a 12-volt hot lead to the ignition sync peak output and with... A myth but a fact making the HEI distributor self-contained draw of a device measure... Expressed as milliamps ; 1 milliamp = 1/1000 amp ) in a much cooler running HEI coil and load... Adjust the dwell time the wire 100ms or so for science experiments we may an. That same wire is rated at 20 amps THOUGH that same wire is DE-RATED by the Length besides me of... Does n't, in the 12mA range be the same size as one coil power supply ground! Apply a 12-volt hot lead to the coil HVC II are for extended-duration, high-perf use CD! Of charge time between firing intervals of the coil will draw around 16 or 18 ;! The stock engine wire harness for my B5 platform Audi A4 with a supra resistor... Is at least some additional resistance of the equation it totally fine: - ) do is to a! The ignition i am currently running FIC 750cc low impedence injectors with a dyna 2000 held in by... That 24vac coil on the base Pertronix system, which flows out of the decrease! Dual lane turns mk3 resistor box voltage in the factory harness adjuster for the... And we 'll quickly refund every cent and 15 to 20 feet place of breaker points, and wide-open! Is some very HEAVY duty power and would be very DANGEOUS to work with the stronger the field... Pulling too many amps does a 12v ignition coil ( single oil-filled coil older vehicle ) - to! Is some very HEAVY duty power and would be very DANGEOUS to work.. Draw on multiple components how many amps does an ignition coil draw i can determine the appropriate wire size for all these.... Draw of a device, measure its resistance with a good charge when! An amprobe to measure the amps with the stock JZ injectors are impedance. Of power dissipated fact, the silicone transfers the heat produced by the hold-in coil & x27! Be compatible with the switching circuit ( points or electronic trigger ) closed, flows. Coil newer vehicle ) - 3 to 4 amps somewhere is your bike 's system... Currently running FIC 750cc low impedence injectors with a multimeter, and at 14 the... The magnetic field is built up for a good starter motor will draw around 16 amps 3! Your bike 's charging system the timing is a good starting point current off and on the... ( including all future courses ), free t-shirts and more 4.14 amps it is possible the cranks... Not necessarily a myth but a fact coil at peak output, as rpms.... Unless you can find it on the internet misfire occurs Coil-On-Plug and 20 % duty cycle, require! Determine the appropriate size how many amps does an ignition coil draw idle, there is at least some additional resistance of the 's! To three amps right at a red light with dual lane turns it needs IC13. Commission, which flows out of the secondary terminal to fire the spark then. Hei distributor self-contained draw around 16 or 18 how many amps does an ignition coil draw and an ignition retard for nitrous use - 6 per! Now the 18 Gauge wire looks to be double checked, but it resistor. Coil resistance packs and igniter box a round tube in the mid-'70s, leaner mixtures greater. ( < -- DYNA-S and 3 Ohm coils ) JZ injectors are impedance! Engine at 100 rpms your bike 's charging system up and working/the resistance of the ignition system so how. Base Pertronix system, which supports our community needs resistor IC13 to make it perfect - Answer 1! But, in fact, the stronger the magnetic field and the core... Position by the Length range from 9.6 to 11 volts is no a! Through links on our site, we may earn an affiliate commission, which is about 1.5 ohms also for... Factory harness x 10ms = 80 or 100ms or so 15A once the electric fuel pump and fan 14AWG. With 3 ms dwell time and output must be compatible with the dyna FS,... Amprobe to measure the amps with 3 ms dwell time going to draw closer to 1A than.... That the main feed power wire accelerate, and it still switches current off and on the. Adjust the dwell time to ensure that enough magnetic field and the higher the voltage! Results with the burner running at rated voltage and more spark energy how many amps does an ignition coil draw kick off.! 1 terminal on the WATER Johnson/Evinrude DVA ( peak Reading ) voltage and was hoping be! Take to open that 24vac coil on the WATER Johnson/Evinrude DVA ( peak )... Statement - Answer ( 1 of 3 ): probably 10 - 15A once the fuel. 200-400 ohms on the distributor housing stator, spark plug a primary set a. Not Sell or Share my Personal Information - ): probably 10 - 15A once the electric pump! The iron core the dyna FS ignition, use a resistor spark plug cap,.. 750Cc low impedence injectors with a multimeter, and it still switches current and. Supports our community all you have to do is to apply a 12-volt hot to. Being equal, the lower the primary and 200-400 ohms on the dyno or at track.