How to Test and Replace the Ignition Coil on a Stihl BR 550.

[@opichocal]

Your blower sure looks clean. I have a landscaping business and I throw paint all over every piece of equipment to help keep it from getting stolen.

[@funbro1]

I try to keep it clean and definitely keep it secure. Thanks for watching.

[@ryanzurovec1852]

HI. thanks for the instructional video. I am having a issue. there is two rubber spacers, and a metal spacer( a thin washer) i suppose i will eventually place them correctly.

[@lennoxcooper3881]

Did you put a spacer under the bottom of both holes of the coil. My spacers fell and I'm trying to figure out where they go

[@ryanzurovec1852]

Sounds like you are having the same issue I have.

[@ninazeng6036]

Nice job!

[@funbro1]

Thanks for watching.

[@dgibbsfl]

Hi, nice video tutorial on replacing the coil. I have a coil related situation and two questions. 1. My situation is that the coil wire somehow became disconnected from the spark plug cap/boot. The machine actually runs just by stuffing the coil wire back up into the neck of the boot. This first question....do you know of a way of somehow reconnecting the wire to the spark plug cap inside of the boot? The coil on my machine is actually OK. 2. Your cleanup process....after you spray prep the dirt on the various surfaces and after you wipe or brush the heavy dirt off, do you rinse with water, i.e. how do you get that final complete clean as there is no way to geta rag into all of the crevasses? Another way to ask this question...can all those surfaces (carb, coil, etc) get wet with water? Thanks

[@funbro1]

You can take the rubber boot off the plug and usually the wire is crimped on a metal hook that goes over the end of the spark plug. Reinsert the wire and crimp it again. Most of the time this will not last long or will mess up the boot so a total replacement would be the unfortunate answer to do it correctly. As for clean up I used a degreaser because most of what was on the unit was oil and the degreaser also loosened up other stuff as well. Hope this helps, thanks for watching.

[@dgibbsfl]

@@funbro1 did you shoot it with water after letting the degreaser set up for a while? Can the carb get wet? I need to clean mine but have never done it before. It really needs a cleaning.

[@funbro1]

@@dgibbsfl I used a brush after the degreaser and lightly sprayed it down then used an air compressor to dry it off good and ran it for a few minutes to dry everything off. As long as you don’t spray water directly into the carb, it should fine.

[@daipower1]

You mentioned some spacers to stop the coil from grounding out, I have purchased a BR600 as a non runner and those spacers were not on the coil, would it make much difference, would it stop it from starting? Thanks Dai

[@funbro1]

If there is no non conducive spacer in there it would probably short out and cause it not to run. Check the spark and see if you get anything. If not then that could be the issue. Thanks for watching.

[@larrystark9790]

Good video helped me thani

[@kevinkane7170]

Considering buying one used for $200 for allegedly this exact problem. Curious as I am new to multimeters what the 2 settings were on the meter and what you touched to what - essentially the steps to make proper connections. Thanks

[@funbro1]

You should get resistance between the coil and the spark plug cap. Hope this helps, thanks for watching.

[@MIDRATZ]

I too would like to know this. What reading was that. 40 Ohms. K ohms or Meg ohms. Couldn’t see the screen very well. It doesn’t have a capacitor does it. Why did the old one go up and down? I wonder if it was just a bad connection. I mean, if you don’t know what it’s supposed to be just say so. Might help us folks not replace something that end up being good. Other than that thank you for the video.

[@georux6783]

@@MIDRATZ basically you want the resistance of 40 ohms. Set your multimeter to the lower setting. 0 to 200 or something. You should read 40. If it jumps around and then goes to zero that means there's a short. The resin probably melted and there's wires touching inside. I think there's only two contact terminals that you have to touch... where the wires clip to the coil.

[@j31355a]

It would be helpful if you spent more time explaining the electrical testing you did. You glossed over it pretty quickly.

[@funbro1]

And still was able to make it work. The problem with making videos with too many details is that people will not watch them, it gets boring, they are too long, and then I will get comments saying that the video is too long. I stick to what needs to be covered and move on. Plain and simple to the point. Thanks for watching.

[@jwerner3903]

I agree with the comment about the electrical testing, 10 seconds on the multimeter setting would have helped. Now I’m off searching for a video that explains it. I do appreciate the video and your time making it.

[@stever7638]

@@funbro1 I believe J135 was referring to what terminal you tested the plug lead to. I saw that you verified a reading but we couldn't see what terminal. As well as what the difference was between old and new. Ohm values matter. Take care.

[@Whyus793]

mine today stopped starting at all .2008 br550 It never didn't start on second pull. Changed plug, fuel/ air filter and nothing.

[@funbro1]

Sounds like it could be the ignition coil. That would be my next thing to try. I wish you the best. Thanks for watching.

[@Whyus793]

It's exactly what it was.. Changed out with new one,good as new.

[@VolvoGonzo]

It would have been nice if I could have seen how you actually did your test

[@funbro1]

Re-Watch the video.

[@mikeyboy2154]

T27?

[@funbro1]

Thanks for watching??

[@schafer240]

They where looking for the fastener size lol

[@funbro1]

That’s a good translation. I appreciate that.

[@ninazeng6036]

【from Hipa】Do you like to test accessories for your equipment?thanks

[@funbro1]

Yep

[@ninazeng6036]

@@funbro1 hi friend,if you are interested, you can leave the email ,I will send more information to you.thanks

[@funbro1]

Thanks for watching

[@ninazeng6036]

@@funbro1 do you need any parts now?Thanks.

[@funbro1]

Parts? Not that I can think of. Thanks.

[@mattszman4729]

40.5 reading of what. A little more detail on the reading please.

[@funbro1]

40.4 Ohms, The ohm is defined as an electrical resistance between two points of a conductor when a constant potential difference of one volt, applied to these points, produces in the conductor a current of one ampere, the conductor not being the seat of any electromotive force. Hope this helps, Thanks for watching.

[@Whyus793]

Ohms

[@MrRonluker]

WTF is the measurement of a business card? I've always installed coils at .012". Business cards can vary!!! None are. 012". Lol lol lol

[@funbro1]

If I were you I would continue to use .012 if that works. I used a business card because it’s always worked for me. You should realize there is some variance in the gap and a business card fits right in the middle and has never failed me yet. lol lol lol.

[@MsLincos]

The airgap between ignition module and fanwheel is 0.15...0.3 mm (0.006...0.012in) for BR500, BR550 and BR600. (Stihl Specs) You're welcome!🙂