Stihl ignition coil ohms. Lots of good info on the 075 ignition searches. My coil is bosch 2 204 211 052 and i am not sure i am reading the workshop manual correctly. D Aug 6, 2021 · Remove the spark plug using a spark plug wrench. Jul 27, 2020 · Cancanle Ignition Coil Module for Stihl BG56 BG86 BG86C SH86 C Leaf Blower, Part No. If no spark then the coil is bad. Remove the ignition coil from the bracket or mounting block holding it in place. Then check the reading. That gives a turns ratio of 9522 to 1. My multimeter prongs then moved on to gauge a Stihl engine. 5. Displaying all the signs of bad idle mixture adjustment. Jun 23, 2021 · Jun 23, 2021 / BG56C ignition coil specs for OHMS. to/3qadVXPLink for Multi meter get on here http://amzn. May 18, 2017 · Using a meter on the coil assembly, I get about 1 Ohm between the kill switch lug and the ground lug, which I assume could be the primary resistance. If it’s low, like 1. Tighten down the screws (3) firmly – b 3. Find many great new & used options and get the best deals for STIHL 4180-400-1308 Ignition Coil at the best online prices at eBay! Free shipping for many products! Oct 17, 2018 · Resistance can be measured with a Multimeter. They are Dec 16, 2018 · I’d just mount a Stihl 1118 400 1001 trigger to one of the coil bolts, as the flywheel/timing may be different for the integrated 1303 coil. $59. Designed to deliver a reliable performance. Currently unavailable. Stihl electronic ignition unit failures. Trying to ohm out a Stihl 026 coil. 0 version with the spade located on the side, identical to the original. Delivery: Estimated between Fri, Feb 2 and Wed, Feb 7 to 23917. 5 out of 5 stars 45 1 offer from $15. Is the primary winding 1. from LT - Poles I have continuity with less than ohms resistance. I have found some charts that give that info but they are to small to read and I don't have a 10 year old hanging around to read it. This will usually mean unscrewing small bolts or screws, or sometimes a pair of set screws. 3 k ohms, but can't find if this this in the OK range or not. Fuel Filter for STIHL Chainsaw, Power Cutter, Pump Models [#00003503500] $2. Apr 13, 2021 · Hello I have a stihl MS 211 No spark at all Change ignition coil no spark Check kill wiring ok in new coil same ohms value as old one Flywhell apart good magnetic with steel bolt sticking both magnet read more In this video I will show you how to test the ignition coil on a chainsaw without any special tools. This OEM Ignition Coil is designed to meet the same quality standards as the original part that came with your saw, ensuring that you get a reliable and long-lasting replacement. Unit of Sale. Sep 2, 2015 · Sep 2, 2015. I use an orange spark tester in the dark because the spark is quite faint on a lot of these engines. #2. Black probe to the negative terminal of the coil. These will help to protect you from being electrocuted. Feb 5, 2015. 99. The Stihl MS 311 ignition coil [module] has an armature and is U-shaped with two ends [sometimes three ends] facing the flywheel. How To Conduct The Test Safely. 4 - 2 ohms. 702. A while ago I posted a problem with a MS280 ignition problem and later a starting problem with a FS100 which again turned out to be the electronic ignition unit. Measuring both units with a DVM on the LT side they both gave a reading of +2M ohms both ways, whereas the new units gave a reading ★PARTSRUN FS56 Weedeater Coil Ignition Module fits STIHL Trimmer FS56 RC OEM#41444001303 #4144-400-1302,ZF-IG-A00166 ★PARTSRUN Ships Fast From The USA,We will answer any questions in 24 Hours! Report an issue with this product or seller Feb 4, 2015 · Location. 98 $ 24 . STIHL recommends the use of genuine STIHL tools, guide bars, chains, chain sprockets and accessories. It will be marked +. May 26, 2022 · We recommend you to see ignition coils with a resistance that starts from 2500 and has a maximum output of 5150 ohms. bosch electronic coil (1125 400 1300) + 1118 400 1206 F/W. 5 or 3. 5 ohms or 1. Stihl Ignition Coil Bench Test and Replacement. Note: Will not fit 017's before serial # 2 44 076 105, and old Stihl 017 model. The primary side has thick wire wrapped around one leg approximately 150-200 times. 5 ohms would be expected. Then out of necessity since the after market one I bought didn’t work I will s May 3, 2021 · Step 1- Remove The Cover. $ 19 99. So easy anyone can do it. Proline® Ignition Coil For Stihl TS700 TS800 Cut Off Saw 4224 400 1301. Cleaned off a little surface rust on the magnets and coil contacts but still no spark. The laminated iron core has the task of amplifying the magnetic field. 020 mm. With the switch in the off position, the resistance should be zero or near zero. Aug 1, 2016 · Step 1: Research the specifications. Apr 21, 2019 · Testing the Ignition Module. You’ll see the resistance on the multimeter. I have an early Stihl 046 with a 1128 1309 coil that has 3 legs and uses 3 bolts. 9 ohms to 2. This is our new & improved 2. Please match you part with ours for proper fitment; actual pictures shown. First time poster, thanks for letting me ask! After one year, just out of warranty limit of very little use on a Stihl weeder FS-55 the ignition coil blow. #5. If it produces sparks of blue color, it indicates that the coil is working. 6Kohms. 7, or high, like 6. Feb 4, 2024 · To test and ignition the coil pack, the negative and positive probes of a coil pack should be placed on corresponding terminals, and the multimeter set to the 200 Ohms range. One of the two are shorted to ground. No reviews yet. I am looking for confirmation or refutation of my findings Maybe a Stihl service tech can quickly asses. Stihl TS700 and TS800 genuine OEM ignition coil. Oct 10, 2020 · Thinking it might be a bad kill switch connection, I removed the connector and cranked it with the plug and the tester. TS 700, TS 800 Aug 18, 2011 · ariensman2. Step by Step . 0 ohm & 8. In general, coils with resistive values between 0. 3 Testing the Ignition Module 32 6. Frequently Bought Together. During our test for the Stihl, the resistance was 2500 ohms to 5000 ohms. Step 2: Disconnecting and Testing The Spark Plug. Sep 11, 2021 · Hello looking to find out what the ohm reading is for a Stihl s10 primary and secondary ignition is Nov 8, 2016 · White Spark is there but tiny, so put multimeter over the module and get 2. But that would have no effect on the ign system creating a spark. Part Type. For a simple understandable description, the module itself contains two coils of wire. After resetting air gap and an unsuccessful attempt to start up my chainsaw, I removed the coil, attached my ohm meter and saw as I expected, the ohms were too low to produce a significant spark. I reset the gap to . If you have any questions in this respect, consult a servicing dealer. 5 to 3. Step 1- Do Your Research. Ignition Coil for Stihl MS171, MS181 Chainsaws Quality, Non-Genuine Part Replaces OEM No. Apr 19, 2011 · The (032 AV electronic) coil seems to have a rather high turns ratio as determined by resistance measurements: The primary is 0. to/1Wj59mb This video deals with How to test a Ignition coil o Oct 22, 2008 · 4 posts · Joined 2008. Dec 26, 2023 · Step 2: Checking the primary ignition circuit of the coil. Ignition System 30 6. This Item: Ignition Coil for STIHL MS171, MS181, MS211 [#11394001311] $18. 6Kohms from LT - Poles I have continuity with less than ohms resistance. I've had Stihl products for years (blower, trimmer, edger, hedge clipper), and the FS91R has been the best item. The readings are the same in both polarities so this acts like a coil and not a CDI/coil module. 7k ohms are the values in the manual. Step 2- Detach The Parts. 0:00 / 5:00. Breathe easy. Genuine ignition coil suitable for Stihl FC55, FS38, FS45, FS55, HL45, HS45 and KM55 strimmers. 3 Ground Wire 39 6. For coil testing with Multimeter, first, detach the spark plug wire from the plug. Anyway, I checked my gap and it was . Free shipping. Aug 25, 2020 · Ignition Coil for Stihl 0000-400-1300. Check the reading on the multimeter and compare it to the resistance specifications for both the primary and secondary windings. Pulled the plug and lay it against the engine, pull and no spark. 1. 00 ) Proline® ignition coil for Stihl TS700, TS800 cut off saws. When the points are open the resistance across the coil and points in parallel will be about 1. The flywheel is a Stihl 1128 400 1211 with a single magnet. Oct 9, 2011 · Chainsaws. Use an ohmeter and trace that wire back to the switch and find out where it is grounding out. The wire from the coil that used to go to the points is the primary side of the magneto (coil) and has a low resistance to ground. no spark with either. Step 2- Disassemble The Components. #2 - Negative lead to A + Positive to C. Reaction score. P/N: 4283 400 1301, 42834001301. Feb 7, 2012 · 2,786. Genuine Part. There will be two bolts holding these wires. 98. See details. Remove the setting gauge and use a feeler gauge to check the air gap. Feb 7, 2012. Remove the spark plug wire from the spark plug. : Unscrew the ignition module from the ignition lead (2). One stop shop for Husqvarna and Stihl chainsaw replacement spare parts. Follow the valve adjustment procedures. 31K subscribers. 1 Testing 35 6. $999. Feb 21, 2020 · Learn how to use an ohm meter to test the ignition coil of your small engine, such as a Briggs and Stratton. If the reading falls outside the normal resistance range, you’ll need to replace the ignition coil. Step 3- Test The Coil. The coil also has two sides. Dec 5, 2021. Jan 1, 2015 · Replace the condenser if this happens to you and the 031 av should run just fine. Note that the points are in parallel with the primary coil. This thing has been a bear from the get-go. From HT-Poles i get 10. Last edited: Sep 29, 2020. The principle is the same as the push mower I did previously. 5. 566. florida. 672. May 9, 2016 · Link for New Ignition coil https://amzn. 008" and tried the spark plug test again. STIHL MS261 MS261C IGNITION COIL NEW 1141 400 1302. I show how to Apr 18, 2020 · To test the coil, you will need to use a tester, and perform the following steps. I guess it's about 15 years old. Connect the negative lead to the negative terminal. Genuine OEM spare part. Through my comprehensive testing on the Stihl engine, I determined that the resistance range of the ignition coil fell between 2500 ohms and 5000 ohms, which aligns closely with the resistance values I found in the Briggs engine. Compatible with Stihl MS171 MS181 MS211 Chainsaw ; Package includes: 1X Ignition Coil ; FARMERTEC providing high quality aftermarket products, so that you don't need to pay so much money for the genuine one ; Note: Pls compare it with your original parts before ordering it to make sure this part will fit Aug 27, 2019 · This item: AUMEL Ignition Coil For Stihl MS271 MS291 MS271C MS291C MS 271 291 Chainsaw Replace # 1141 1305/1141 1305 A $24. The card I used was . Find other Stihl spares, parts and accessories. The 20K scale (20,000 ohms) would be the scale to use on the coil secondary winding . Connect a multimeter to that wire and ground. If anyone out there know's how to install a chip in any of In reply to #1. 01/17/2010 4:48 PM. 8, the ignition coil isn’t working, and you need to Jun 19, 2013 · Hello, I'm hoping somebody can assist. Looks like most run about . 010" . Add to Cart. 4144 400 1303 (Replaces 4144 400 1316) Suitable for the Following Applications: FS40, FS40C, FS50, FS50C, HT56C, FS56, FS56C, FS56R, FS56RC, FC56C, KM56C, KM56RC Feb 11, 2017 · I also read that the gap between the coil and the flywheel should be about . 0-ohm coil should be used on PerTronix Ignitors installed on four- and six-cylinder engines while 1. 7 Ignition System Troubleshooting 40 7. Oct 28, 2020 · Oct 28, 2020. yunqi75 (50) 100% positive feedback. 1. £29. Price: $21. Alabama. Rubber is not a conductor of electricity so you will definitely be protected. With the kill switch in the run position the meter should read "open". Now we get back to the numbers thing, need to know your flywheel number so the coil can match as it could be you have a mismatch already. Location. WILL ONLY FIT MACHINES MADE AFTER 2001 YEAR!Replaces part numbers 4140 400 1308 and 4140 1303A (4140 400 1303A). With these simple carbs, every adjustment has to be right, even the power setscrew. #1 · Aug 6, 2019. This video will show you the proper setup and procedure for different types of coils . This is our updated version (2. #1 · Oct 22, 2008. Assume you have already checked the primary & secondary coil windings, and they’re good to go. 49. 4. I have an older stihl with older style coil and it show 3. Easy to do. 3 4. Alongside the iron core, the main components are the primary winding, the secondary winding, and the electrical connections. The Stihl MS 171 ignition coil [module] has an armature and is U-shaped with two ends [sometimes three ends] facing the flywheel. 2 ohms or so. 15 Standard Shipping. SEM electronic coil (1118 400 1300 ) + 1118 400 1200 F/W (two keyways- one for bosch ,one for SEM ) Proline® Ignition Module Coil For Stihl MS461 1128 400 1313. arms of the ignition module and the flywheel. hi guy's I have just picked up an old stihl 032av chainsaw in decent condition with a working chain brake, the problem is it has no spark, I have removed the flywheel and cleaned the flywheel and ignition coil faces and put back together and still no spark! its electronic ignition by the way. If it then has a spark then the wiring / stop switch is bad. Find out what the correct resistance reading of the ignition coils should be for your vehicle. 0 ohm (the coil’s wire resistance). PARTSRUN 1138-400-1300 Ignition Coil for STIHL Chainsaw MS441 ZF-IG-A00157 . 008" which translates to . Ignition chip to replace the points and condoners will not work on the 031av because the ignition coil has advanced timing casing the chip to misfire. #4. Find many great new & used options and get the best deals for STIHL Ts700 Ignition Coil 4224 400 1300 at the best online prices at eBay! Free shipping for many products! The Stihl MS170 ignition coil [module] has an armature and is U-shaped with two ends [sometimes three ends] facing the flywheel. #1 - Negative (Black) lead to A + Positive (Red) lead to B. . 99 Dec 5, 2021 · Colorado. 012 with feelers gauge. But they have an expensive meter that flashes a lot of numbers so it must be important to their tiny minds. I will do some diagnostic testing and repair on this BR 550 blower to get it r May 30, 2023 · Stihl Ignition Coil Resistance Chart. 7 ohms? Apr 17, 2005 · I've measured 0. Jan 17, 2017 · Frequently bought together. Top Performance Ignition Coil for Stihl Blower BG45 BR45 BG46 BG50 BG55 BG65 BG85 SH55 SH85 075 MPN: 4229 400 1300 Fits For: The ignition coil's task is to induce a high voltage from a low voltage. Dec 12, 2021 · This video is in response to a viewer, but I also thought you would like it too. The coil is a revised edition that Stihl has released. Replaces Stihl OEM Part Number 1130 400 1302, 11304001302. 008". Replace: 4244 400 1307, 4244 400 1303. 95. 020", heavier than most evidentally. Bob Hedgecutter said: Like a real woodsman. : Slide the setting gauge (1) 1111 890 6400 between the arms of the ignition module and the magnet pole of the flywheel. Please, check your old part with the pictures prior to purchase. This will allow a before and after indication. Jan 25, 2017 · The Flame Thrower 40,000V coils have internal resistance rated at 1. Connect the positive lead to the positive terminal of the coil. Stihl. 020". I get 7. Provides smooth engine performance. #1. – Press the ignition module against the setting gauge. 0) which has a refined 90° bend male spade connector. It ran fine sometimes and erratic sometimes, but recently it just quit. $79. In this way, the primary winding will be checked. Stihl Ignition Coil Resistance Chart. Located in: United States, United States. #10. #15. So, it’s similar to the Briggs engine. I am testing a stihl fs80av coil with a multimeter and am unclear on the results. Step 5- Note The Readings. 010 plug gap set . $39. To test your small engine ignition coil with a multimeter set it to the 30k-40k ohm (Ω) setting and prepare to take seven different measurements with the leads, as follows. Fit: for Stihl Backpack Blower Sprayer BR350 BR350Z BR430 BR430Z BR450 SR430 SR440 SR450. Returns accepted. Loosen the mounting bolts that hold the ignition coil to the engine frame. The secondary side has very thin wire wrapped around the primary windings approximately 20,000 times. Press the ignition module (2) against the setting gauge. 20mm setting gauges are PN 0000 890 6401 and 4118 890 6401. I believe there is a typo in the service manual as the 0. 6. Now the BG85 did spec up to 0. 0 1 product rating. The chip will also not work on Stihl 032 and 041. 6 Short Circuit Wire 35 6. Function: Improve engine operating efficiency and electrical performance, better recovery and response, directly replace old or damaged ignition coils. Aug 16, 2018 · Decided to tear down, clean and test the ignition components. Connect one electrode of the tester to the “mass” of the coil, and the second to the contact coming out of the magneto. 2 ohms. Remove the starter cover and remove all wires from the coil. 5 ohms up to 5 ohms on different coils . Adjust idle setting screw when hot to attain steady idle and the hot start problem will be better. Oct 9, 2023 · 2-year protection plan from Allstate - $10. 98 Get it as soon as Thursday, Feb 29 355 500. Then hold the negative wire and touch it to the mounting place. Sep 29, 2020 · 9,993. Part #: 16-1009. and there is a simple way to bench test these with a volt ohm meter. I was told earlier to take a business card and use that to set the gap. #3 - Negative lead to B + Positive to A. Note a flash = a pulse is being sent down the pug wire. Mar 9, 2018 · Proline® ignition coil for Stihl MS271, MS291 chainsaws. 6. 5 to 5 in the multimeter. These specifications can usually be found in the factory service manual for the vehicle, and are usually specified as a range, measured in “ohms” (symbol: Ω). Feb 1, 2023 · Hold the ignition coil and stick the positive wire to the plug end. 5 Flywheel 34 6. If that's ok I'm stumped. 2 ohms to 1. 2 Removing and Installing 35 6. Shipping: US $6. No spark. Maybe 1/16 at the outside diameter of the Flywheel. The 3. May 27, 2023 · Use rubber gloves. 2 Ignition Timing 32 6. Unable to load replaced parts. Neighborhood Lawncare, KC. Use only high quality tools and accessories in order to avoid the risk of accidents and damage to the machine. But back to the fact it is new to you- coil could be well and truly poked and you are trying to test a dud. Please note it is also compatible with the older "square style". 0 ohms. (1) Questions & Answers (1) Hover Image to Zoom. It is easy to install and will have your TS700 or TS800 up and running in no time. I have a Stihl FS91R. The gap between the flywheel and the coil was 0. 00 ) Proline® ignition module coil Stihl MS461 chainsaws. Step 2: Locate the ignition coil, or coils, on Jul 18, 2018 · Didn’t feel it had enough spark so replaced the coil (Stihl 4140-400-1308) gaped @ . 4 out of 5 stars 160 1 offer from $26. resistance numbers are there to occupy the minds of the brain dead who have no idea how a modern hall effect triggered coil works. Start the mower and observe the reaction of the spark plug. Got a little sputter, That’s all. 1 ohms to 0. HEre is a pic of the LT> poles with the test being performed across the red line. +. The charts will not expand on my Computer. I've measured 3,500 ohms up to 5,000 ohms on different coils . Ideal for use as an OEM replacement ignition coil. So I buy a aftermarket coil from ebay. Sep 29, 2020 / Stihl Specs Discrepancy for Ign Module to Flywheel. The 2000K scale (2000000 ohms) would be a good scale to measure isolation of the primary winding to laminations and to the secondary windings Feb 24, 2016 · no spark stihl MS 250 changed the ignition coil & flywheel all new wires and spark plug air gap set 0. It is about three years old. On the tester, going into resistance measurement mode, you need to set 200 Ohms. 5-ohm Ignition module. Once the coil is out it’s time to test it with the multimeter using the following steps: Touch the red probe of the multimeter to the positive terminal of the coil. Step 4- Test With A Suitable Meter. Re: Stihl 025 coil resistance. When the points (with clean contacts) are closed the resistance will fall to a value of 0. Ordered a coil for a 046 and received a 1122 400 1314 that has 2 legs and uses 3 bolts. View More Details. STIHL NGK Spark Plug for KM130 up to SR200 Machine Models [#00004007011] $5. HEre is a pic of the LT> poles with the test being performed across the red l Ignition Module/Coil Genuine Stihl Part OEM Part No. Step 3- Pull Out The Ignition Coil. 1 Removing and Installing 30 6. Jul 19, 2018 / FS85 no spark. Brand New OEM Spec Replacement Ignition Coil Assembly for Stihl 017 018 MS 170 MS 180 Chainsaws. 00. 0 ohms are good. Honda, Kohler, Stihl, Husqvarna, Briggs and Strat HEPENG MS311,MS391 Chainsaw Ignition coils for Stihl Chain-saws Ignition Module 1140 400 1303 1140-400-1303,1140 1305 B 4. Feb 14, 2022 · I Tested 100 Coils so YOU Don't Have to!Briggs, Tecumseh, Honda, Kohler & a few 2 strokersIgnition Coil Testing for small engines - How To Using an Ohm Meter Jan 3, 2012 · Most if not all small 2 cycle engines today use a similar ignition system setup. No start Removed the flywheel and there was a little slop in the key. I don't have a specific value but would guess that somewhere between . 1139 400 1307, 1139 400 1302 Suitabe for the Following Applications: MS171, MS181, MS181C, MS211, MS211C. 45mm. The cost for the new weeder was 320 dollars (Mexico), the new coil costs me about 95 dollars! Now I'v got two questiosns: ENGINERUN MS230 MS250 OEM 11234001301 Ignition Coil Module Magneto for Stihl MS 210 230 250 Chainsaws 0000-400-1306 and 1123-400-1301 4. should they be in the same ballpark? Not sure if i should tear the carb down first and check everything over or if there is another test for the coil Aug 6, 2019 · 6381 posts · Joined 1999. This item: Ignition Coil Module fits STIHL BR500 BR550 BR600 BR 500 BR 550 BR 600. I installed the coil, set the air gap, tried to start and could not start my MS171. TS 700, TS 800 Page 44: Ignition Timing – Reassemble remaining parts in reverse order. Sep 5, 2022 · Sep 5, 2022 / Stihl MS 261 C-M. In most chainsaws, the wires run from the distributor cap to the plug and are easier to remove. 5k Ohms between the ground lug and the secondary wire. An excessively high reading means the coil is open. Before trying to open up a Stihl chainsaw and trying to fix the ignition coil it is very important that you start by wearing rubber gloves. It's a three hole module which are around 60 quid to replace unlike the 2 hole ones at 15 quid, so would rather check. Aug 26, 2021 · If your blower does not start or runs rough then this may be the fix you need. Subscribed. FitBest Air Filter Spark Plug Fuel Filter for Stihl BR500 BR550 BR600 BR700 Backpack Blower 4282 141 0300 4282 141 0300B. Aug 2, 2019 · Reaction score. Set the multimeter to measure resistance (ohms). Disconnect the grounding wires on the coil and test again. 1 Ignition Module 30 6. 4241 1306 B dummy HEPENG 4244-400-1307 Ignition Coil for Stihl Backpack Blower BR350,BR430,SR430,SR440,SR450 Amazon. 040 still no spark read more Eric Noe Oct 10, 2023 · Tutorial on how to test ignition coils you’ll find when repairing your engines at home regardless of brand. 012". If there are no connections in between that wire and the switch, pull it off the switch and check it there and also check that terminal on the switch. Key will have to be checked. A zero means the coil shorted internally. Jun 23, 2021. 9 ohms, the secondary is 8570 ohms. the saw has a little black chip STIHL Br800 Magnum Backpack Blower Ignition Coil Module OEM 4283 400 1301. Connect the spark plug to the cable and place the other end of the spark plug (thread) against a metal part of the engine. 3 and 1. 4 Stop Switch 39 6. com: PARTSRUN 4180 400 1308 Ignition Coil + Original Boot for Stihl Trimmer FS90 FS110 FS100 FS130 HT101 HT130,ZF451-1 : Patio, Lawn & Garden Proline® ignition coil for Stihl BR320, BR380, BR400, BR420, and several other backpack blower models. Slide the setting gauge (1) 1111 890 6400 between the. 3 out of 5 stars 5 ratings. A thin secondary winding is placed around this iron core. Add a review. $1447. 61. I will show you how to completely replace the ignition coil on my Stihl ms271. - 4283 400 1301. Step 2. Part #: 16-1005. Hence, it makes it easier to replace as the resistance ratio follows the Jun 17, 2018 · Stihl Ignition Coil Bench Test and Replacement - YouTube. A different design and No spark (still)! Jun 19, 2013 · I'm hoping somebody can assist. 4 Spark Plug Boot 33 6. i don't know what new coil you put on after you ditched the points so here is a list of 028 ignitions i know of : points/ condenser +1118 400 1205 F/W. A typical value would read 0. (You save $20. Visit the PARTSRUN Store. The 4118 890 6401 is listed as a . idaho. After these tests, I felt the coil was bad. For the kill switch, pull the small wire off of the ignition coil. Centered and LockTighted (High Strength) onto the shaft. On the coil, with it installed the resistance of the plug boot to ground should Jul 19, 2018 · Messages. model by STIHL or are technically identical. 01 Oct 24, 2013 · Using an impact gun to remove the fanwheel guarantees a sheared flywheel key. It would be out of time for sure. It will be around (2500 – 5000 ohms) 2. Ohms from coil laminates to plug boot is 2 ohms at all 3 laminate points and from plug boot to engine fins 2 ohms also. £ 174. uv ai cd gv cb uh pd bx bm aw