Good video. I got lucky, there is an easy way you might save yourself $45 on the coil Once you tear it down and get the coil off, you can polish the pickups on the coil with some fine sandpaper. If the surface of the pickups are corroded or dirty, it may not generate the field for the spark. Either way reinstall the coil, and use a business card to get the correct gap between the magnets on the flywheel and the coil. make sure the two wires on the coil are not in contact when you reassemble.
1.43 pm august 30 Toronto Canada. I like the way you took your time to show me how to fix my same tool. I tried three different days and it will not fire up. I will take it to Sthl dealer to fix it. And I will buy another tool for wedging. Thanks Tk
Very well done video. Very comprehensive and shows good detail. This helps a ton with my issue. Nice touch with the blue background (contrast) so that we can see what you're working on.
I may have the same issue with a Ryobi. Thought it was the carb so I sprayed starter fluid in to see if started and nothing. Spark plug looks brand new. The Ryobi coil part that goes over the spark plug is a cheap spring under the rubber boot. Wondering if mine snapped or isn’t making contact
I think this may be my problem with my Ryobi weed eater. Thought itnwas the switch. Changed the switch. Nothing. Getting the spark tester first as you did. If no spark ill change the coil as well. Hate to buy a new one. It was running so well. Also flooded the hell out of it trying to start. Haven't given up yet. Also checked spark plug, carb and spark arrestor screen. All ok.
In this video the coil was maybe good and just not grounded well (4:13 was wobbly and rusty) or the wires pinched and grounded, just a minute of wire brushing and tighening the screw may have done the same, we will never know. Test your coil before ordering, there are plenty of videos for that.
My fs55 pulled this earlier, I pulled the plug put the wire on to test for spark since I don’t have that nifty tool and had no spark. The plugs new and I checked for broken wires just Incase and that’s all fine. I immediately had a feeling it was the coil so I got one. But what’s crazy is my primer bulb was shot anyway. I got mine used for 100 bucks so it’s not that bad in the end.
I have a Stihl Kombi trimmer. Recently it got wet due to hurricane in NC. No spark. Checked with spark plug tester. Would you suggest new coil or could being wet cause other problem? Have had it for about 5 years. Thanks
Just sand down and remove the rust on the old coil on both areas and also remove any rust where the screws go and it will work so you can have a spare thanks for the video
Since you say that you are not particularly happy working on two strokes,maybe you can help me on this problem with my Makita 4 stroke BHX2500CA blower...the air cleaner felt keeps loading up with oil and seems like it's sucking oil from the crankcase somehow...any idea why and how do I fix it? Thanks!
Did you think that the bolts of the Magneto were loose and it also looks rusty. Maybe if you cleaned the contacts and tightened the bolts to the body to the engine it might have worked?
Just for info mine the flywheel lost its magnetic field I put random good 1s on it to kind of charge the flywheel and it ran for about 30 minutes losing power the hole time till it cut off again is there a way to recharge the mag ? If so please fill me in thanks 😊
I have a Stihl FS 131with no spark, 1500 ohms on the secondary coil. Not sure if that is within spec before I buy a new ignition module, parts prices have gone up. Thank you.
Hope you've got your machine fixed by now! The important thing is not what kind of resistance reading you're getting; the important thing is if it's producing spark. That's the real test!
My Stihl would start, run about 15 seconds and stop .Did this numerous times. Dug into it, changed fuel, run carb cleaner, etc. No good. Finally, checked fuel line. As I fished it out of the fuel tank it fell apart into several pieces. New fuel line on-order.
Interesting point, but I'm not sure I agree. Because it is a non-contact connection, rust on the flywheel magnet will not impede the process of spark generation. This coil was definitely bad. There are a million small engines out there with rusty flywheel magnets, and they run fine with no problem.
Why is it that I've had $200 Walmart push mowers last 10 years and run without so much as an oil change while I end up taking a $400 Stihl 2 cycle string trimmer to the shop 2 seasons after buying it new? What's their problem?
Well every machine requires minimal maintenance to run. You seem to not even do an oil change so I would guess you are not cleaning the arrestor, the plug, the air filter and you are incorrectly mixing the fuel. Also I suspect you never grease your rod and head. Tools last forever if you take care of them. Stihl does
@@BarniRepairs I guess I didn't word that very well. I should have said something like, why does a cheap 4 cycle mower go so long without anything more than filling with gas and checking the oil while an expensive 2 cycle motor requires so much maintenance just to keep running?
Buck, I've done this exact repair on a Craftsman, but it still won't start. Any suggestions on where I can go from there?? I already have changed the spark plug, carburetor and fuel lines. I did the exact same test you did. Thanks!
If you are not getting spark let me know,tell ya how to test,but if coil is good check the two wires going to your shut off,make sure they do not have a complete circuit between them,they should only if trying to turn it off. Ohm meter should read around 6ohms on coil,from spark plug wire head to magneto field on coil. If it reads as grounded its bad.
The spark tester, placed between the coil and spark plug did not light up or flash. Unless the coil is grounded by the kill wire, it should light up the tester when the starter rope is pulled. There was nothing else to diagnose.
I have an fs400 with no spark, a new coil did nothing so I unplugged the ground from the coil and it runs. It’s either the switch or a bare wire somewhere. Trouble is you can’t buy the switch as they’ve been discontinued. Very annoying.
I had to replace the magneto, not brush the contacts, and I also replaced the primer bulb and cleaned the screen on the spark arrestor. Possibly you didn't watch much of the video....
I replaced my coil with a stihl coil and did all of your procedures and still NO spark,,,,do you have any other suggestions???? Ver disgusted,,,,,thinking about trashing the Stihl and buying a Husqvarna,,,,,,help if you can,,,,,,thanks.....
I have a problem with one like this, has spark, hard to pull and no start not even with starting fluid in carb will not even hit. Compression is 125 and I have checked the flywheel for a sheared key, it is in place but does not look robust. Anyway I'm Stihl working on it. Here is another item I wonder about and that is everyone I know including myself starts a trimmer like you did so why in the world did Stihl have the pull rope directed from the opposite side?
I guess the engineers assume most people will grab the tool with their left hand and yank the pull cord with their right. I really have no idea. Good luck with your repair project.
Possibly, but that was not the cause of the no start situation with this machine. The ignition coil was faulty, and the leaking primer bulb was just another issue to resolve while we were servicing the machine.
I don't know of any bench test for an ignition coil. Perhaps there is one; I don't know. I just know that the ultimate test of a coil is whether or not it puts out spark. Even if the spark plug is bad, as long as the coil is not grounded (such as when the run/off switch is in the off position), it should light up a test light. So for me, it was just a process of elimination.
I rebuilt carburator and still won't start. When it sits for a day with fuel in bulb, it starts for a couple of seconds and then shuts off. Then it wouldn't start.
Shouldn't you check the resistance of the coil before assuming its gone? You have the meter there. Non-mechanical part. More likely its a wire to the boot or something no?
If you can’t see a spark. I suppose you could just take the plug out … and put a bit of fuel in the hole put the plug back . If it fires up for a few seconds .you have spark. That’s what I did , So I got spark but it still will not run , 🙁 what should I do now
So, since it fires for a few seconds, you know you've got spark and compression. All that remains is fuel....you're not getting fuel flow through your carburetor. I would say a good carb cleaning or rebuild is in order.
Good . Before I fit a coil to a stihl I away remove the horse shoe from the coil and clean the rust off the horse shoe so the coil can be earth. The older coils had a separate wire witch came from inside the coil and was screwed to the horse shoe. Works every time
Hi i just finish completely service a FS 55 an its back firing and not holding any compression. i was wonder what may be the possible cause. i have change ignition coil, piston rings, carburetor, fuel and air filter.
@@lukedaniel9969 That doesn't mean you don't have compression. Possibly the flywheel is misaligned and so the timing is off. Hard for me to really know....
I'm not sure where to get a parts list for your model. In my case, I took the old coil to the local Stihl dealer who was able to order me the exact same part. Good luck.
I don't remember if I tried a new spark plug first or not. Either way, with a faulty coil/magneto, a new spark plug would not have made any difference. The issue was the coil, not the spark plug. Thanks for watching and commenting!
edaced4 you missed intellgence. Like he said it was the coil pack not the plug or did you miss the part where he checked for spark with a spark tester Einstein. A new plug would not have done a thing. The first thing you check for all the time is spark. Maybe you pull a motor down only to find out it had a fuel problem ...as in no fuel.
The inline spark tester should flash whether the spark plug itself is good or not. Since it did not, I knew the issue was the coil/magneto, not the spark plug. But hey, if you don't have a spark tester, replacing the spark plug is an inexpensive thing to try first.... Good luck.
Spark plug tester determined that,for your coil your can use a ohm meter,if positive is not grounded its good,and should have around 6ohm of resistance if good. No spark normally means,bad plug,bad shut off,or if neither of them its a bad ignition coil. Mine had the shut off always grounding and keeping it off.
It's hard to diagnose your machine sight unseen. But what led you to believe you needed a new coil and carburetor. Ignition and fuel are two separate systems. What tests have you run?
I assume you mean the wires from the kill switch. So, no, it doesn't matter which wire goes where on that switch. Either way is fine, as it simply provides continuity from ground to the magneto to shut down the running engine.
@@Buckwsr Thanks. Yeah the replacement tabs were in slightly different locations so those wires wouldn't reach but opposite the way it was originally. I still can't get mine to turn over after replacing the carb - ignition coil - fuel lines and filters. The arrestor was clean
not a good idea to have combustible liquid next to a laptop, but if the dreaded blue screen has reared its head, and you have house insurance, i say fry it and claim for a brand new one lol
Continuity (negligible resistance) through the switch is ON/RUN and open/infinite resistance is OFF. I think you have your switch positions reversed mate.
Hi Katrina, do you mean to say you have a 17 year old son/daughter who diagnosed a non-running string trimmer? And that my video confirmed his/her diagnosis? If so, I congratulate you both for getting the job done yourselves, and I am happy to have lent a little help in the process! Good luck!
If your Ford automobile needed repair, would you use genuine motorcraft parts? If your GM vehicle needed repair, would you use genuine GM/ACDelco parts? Or are you suggesting that we should always and only use no-name aftermarket parts for all our repairs? In my opinion, when you are repairing expensive equipment for paying customers, and you need to stand behind that repair, name brand parts are the way to go. That is my opinion, and of course, you are entitled to yours.... Thanks for watching and commenting.
Mike, Finally someone has commented about my laptop!!! But seriously, these days a computer and the internet are as important as any tool in your toolbox, at least for DIYers like me.....
Your comment is uninformed. Even with a faulty spark plug, the spark tester would light up if the coil/magneto were good. In this case, the coil was clearly not working.
@@Buckwsr Sorry, obviously not in your case. When the coil has been the problem, on Stihl products, its normally the metal coil that has become detached from the wire. Which is also a simple fix.
Good video. I got lucky, there is an easy way you might save yourself $45 on the coil Once you tear it down and get the coil off, you can polish the pickups on the coil with some fine sandpaper. If the surface of the pickups are corroded or dirty, it may not generate the field for the spark. Either way reinstall the coil, and use a business card to get the correct gap between the magnets on the flywheel and the coil. make sure the two wires on the coil are not in contact when you reassemble.
W
1.43 pm august 30 Toronto Canada. I like the way you took your time to show me how to fix my same tool. I tried three different days and it will not fire up. I will take it to Sthl dealer to fix it. And I will buy another tool for wedging. Thanks Tk
Awesome video. I eventually concluded that it must be the ignition coil on my sthil weed Wacker. Thanks for validating my prognosis.
Bob
Very well done video. Very comprehensive and shows good detail. This helps a ton with my issue. Nice touch with the blue background (contrast) so that we can see what you're working on.
Thank you!
The guy did not test the coil, it was very slack ( 4:13) and the bad grounding was probably the only issue .Video well done , poor tech knowledge.
I may have the same issue with a Ryobi. Thought it was the carb so I sprayed starter fluid in to see if started and nothing. Spark plug looks brand new. The Ryobi coil part that goes over the spark plug is a cheap spring under the rubber boot. Wondering if mine snapped or isn’t making contact
I think this may be my problem with my Ryobi weed eater. Thought itnwas the switch. Changed the switch. Nothing. Getting the spark tester first as you did. If no spark ill change the coil as well. Hate to buy a new one. It was running so well. Also flooded the hell out of it trying to start. Haven't given up yet. Also checked spark plug, carb and spark arrestor screen. All ok.
Buck, thanks for the video. Going through the same issue with my Husqvarna. No spark. Thanks!
In this video the coil was maybe good and just not grounded well (4:13 was wobbly and rusty) or the wires pinched and grounded,
just a minute of wire brushing and tighening the screw may have done the same, we will never know.
Test your coil before ordering, there are plenty of videos for that.
My fs55 pulled this earlier, I pulled the plug put the wire on to test for spark since I don’t have that nifty tool and had no spark. The plugs new and I checked for broken wires just Incase and that’s all fine. I immediately had a feeling it was the coil so I got one. But what’s crazy is my primer bulb was shot anyway. I got mine used for 100 bucks so it’s not that bad in the end.
Thanks, Rich. Hope you get it all figured out and running again.
I have a Stihl Kombi trimmer. Recently it got wet due to hurricane in NC. No spark. Checked with spark plug tester. Would you suggest new coil or could being wet cause other problem? Have had it for about 5 years. Thanks
Just sand down and remove the rust on the old coil on both areas and also remove any rust where the screws go and it will work so you can have a spare thanks for the video
Thanks for the note. But I have a hard time believing that sanding off the rust is going to remedy a coil that has failed....
Since you say that you are not particularly happy working on two strokes,maybe you can help me on this problem with my Makita 4 stroke BHX2500CA blower...the air cleaner felt keeps loading up with oil and seems like it's sucking oil from the crankcase somehow...any idea why and how do I fix it? Thanks!
Good video, simple, to the point, easy to understand
Thank you
I Have found that with Stihl tools Torx bits are T27. I have broke a t25 bit with a Impact wrench hope this helps.
Yes, that does help! I just bought myself a set of torx screwdrivers with magnetic tips and 12 inch shafts!
I see that the spark arrestor that you burned with torch changed color to light yellow, did you dump it into cold water to make it hard again?
Did you think that the bolts of the Magneto were loose and it also looks rusty. Maybe if you cleaned the contacts and tightened the bolts to the body to the engine it might have worked?
Just for info mine the flywheel lost its magnetic field I put random good 1s on it to kind of charge the flywheel and it ran for about 30 minutes losing power the hole time till it cut off again is there a way to recharge the mag ? If so please fill me in thanks 😊
I’d like to know what the bolt on the throttle linkage is right next to the primer bulb
I have a Stihl FS 131with no spark, 1500 ohms on the secondary coil. Not sure if that is within spec before I buy a new ignition module, parts prices have gone up. Thank you.
Hope you've got your machine fixed by now! The important thing is not what kind of resistance reading you're getting; the important thing is if it's producing spark. That's the real test!
@@Buckwsr Yes, replaced the ignition module & it is running well, thank you,
@@carolynnbradley6706 Awesome! Great job. And thanks for letting me know.
Do you do repairs on stihl eith ohv please
Thanks very much for the help. That was very comprehensive and helpful.
Thanks for watching and commenting.
My Stihl would start, run about 15 seconds and stop .Did this numerous times. Dug into it, changed fuel, run carb cleaner, etc. No good. Finally, checked fuel line. As I fished it out of the fuel tank it fell apart into several pieces. New fuel line on-order.
did you measure the resistance of the coil . Some time the rotating magnet gets rusty and the coil is still good
Interesting point, but I'm not sure I agree. Because it is a non-contact connection, rust on the flywheel magnet will not impede the process of spark generation. This coil was definitely bad. There are a million small engines out there with rusty flywheel magnets, and they run fine with no problem.
Back in the days of points & condensers, you never heard of coils going bad
I could tell you a tale or two!
The old days things are made for last, now made to change every year or two.
Points and condensers are the way forward. All the way
Thanks. Same trimmer here, same problem; no spark.
Why is it that I've had $200 Walmart push mowers last 10 years and run without so much as an oil change while I end up taking a $400 Stihl 2 cycle string trimmer to the shop 2 seasons after buying it new? What's their problem?
Well every machine requires minimal maintenance to run. You seem to not even do an oil change so I would guess you are not cleaning the arrestor, the plug, the air filter and you are incorrectly mixing the fuel. Also I suspect you never grease your rod and head. Tools last forever if you take care of them. Stihl does
@@BarniRepairs I guess I didn't word that very well. I should have said something like, why does a cheap 4 cycle mower go so long without anything more than filling with gas and checking the oil while an expensive 2 cycle motor requires so much maintenance just to keep running?
Thank you! Very informative.Mine won't start and this is one more thing I can check out. Much appreciated.
Thanks, Jeff, and good luck with your machine.
Great job on the repair. Loud head banging music free too 👍
Thanks 👍
Buck, I've done this exact repair on a Craftsman, but it still won't start. Any suggestions on where I can go from there??
I already have changed the spark plug, carburetor and fuel lines. I did the exact same test you did. Thanks!
Spark, fuel, compression. An engine must have all three....
If you are not getting spark let me know,tell ya how to test,but if coil is good check the two wires going to your shut off,make sure they do not have a complete circuit between them,they should only if trying to turn it off. Ohm meter should read around 6ohms on coil,from spark plug wire head to magneto field on coil. If it reads as grounded its bad.
Great video but what made you decide it was the coil .
The spark tester, placed between the coil and spark plug did not light up or flash. Unless the coil is grounded by the kill wire, it should light up the tester when the starter rope is pulled. There was nothing else to diagnose.
I have an fs400 with no spark, a new coil did nothing so I unplugged the ground from the coil and it runs. It’s either the switch or a bare wire somewhere. Trouble is you can’t buy the switch as they’ve been discontinued.
Very annoying.
Excellent. Completely demystifies the STIHL ignition set up - same as all the rest!
Thank you for the kind words. Glad the video was helpful.
Replace the primer bulb and then wire brush the contacts on the magneto. Also clean the screen in the muffler. These are so easy to work on.
I had to replace the magneto, not brush the contacts, and I also replaced the primer bulb and cleaned the screen on the spark arrestor. Possibly you didn't watch much of the video....
No sir I got bored and moved on. At least you got it running. Well done.
Hey Buckwsr, thanks for a great video. Loved the background music, too.... the crickets :)
I replaced my coil with a stihl coil and did all of your procedures and still NO spark,,,,do you have any other suggestions???? Ver disgusted,,,,,thinking about trashing the Stihl and buying a Husqvarna,,,,,,help if you can,,,,,,thanks.....
I have a problem with one like this, has spark, hard to pull and no start not even with starting fluid in carb will not even hit. Compression is 125 and I have checked the flywheel for a sheared key, it is in place but does not look robust. Anyway I'm Stihl working on it.
Here is another item I wonder about and that is everyone I know including myself starts a trimmer like you did so why in the world did Stihl have the pull rope directed from the opposite side?
I guess the engineers assume most people will grab the tool with their left hand and yank the pull cord with their right. I really have no idea. Good luck with your repair project.
very helpful now i has one starts but don't spin same kind
Would the primer bulb crack cause a no start?
Possibly, but that was not the cause of the no start situation with this machine. The ignition coil was faulty, and the leaking primer bulb was just another issue to resolve while we were servicing the machine.
How do you test the ignition coil to confirm that’s the problem?
I don't know of any bench test for an ignition coil. Perhaps there is one; I don't know. I just know that the ultimate test of a coil is whether or not it puts out spark. Even if the spark plug is bad, as long as the coil is not grounded (such as when the run/off switch is in the off position), it should light up a test light. So for me, it was just a process of elimination.
comprei uma sf 38 e a borracha veio resecada e rachou, no primeiro serviço ( será que a loja vai repor?).
Thanks for watching the video. I apologize, but I am not too good with....Portuguese???
Great video. Right to the point with your conversation. I learn alot from this one. Thank you
Thanks so much for the kind words!
Thanks for your good demonstration.
Anybody know the plug gap on these machines? Thanks
I rebuilt carburator and still won't start. When it sits for a day with fuel in bulb, it starts for a couple of seconds and then shuts off. Then it wouldn't start.
Remove the air filter, then try to start it, and also Replace a new plug,
did exactly what you did plus new carb card gap have spark but still wont start only backfires help
Hard for me to diagnose for you sight unseen. Verify the basics...fuel, spark, compression. Not sure what else to tell ya....
Not common but you may want to check the flywheel and key.may have cracked or broken key
Me too, ever figure it out?
Mike Nobbe
Did you find out what wrong ?
Same here, replaced the carb, ignition coil, spark plug and removed the exhaust plug. Only backfires.
I had the same problem. it turned out to-be the tale-pipe stopped-up. I cleaned the ... spark--arrester on the back and it started-up.
Glad you're back up and running!
Shouldn't you check the resistance of the coil before assuming its gone? You have the meter there. Non-mechanical part. More likely its a wire to the boot or something no?
Thank you for your video I enjoy it
Does anyone have the problem with the Fs 90r weed eater ( ignition coil goes bad) so fast
If you can’t see a spark. I suppose you could just take the plug out … and put a bit of fuel in the hole put the plug back . If it fires up for a few seconds .you have spark. That’s what I did , So I got spark but it still will not run , 🙁 what should I do now
So, since it fires for a few seconds, you know you've got spark and compression. All that remains is fuel....you're not getting fuel flow through your carburetor. I would say a good carb cleaning or rebuild is in order.
Good . Before I fit a coil to a stihl I away remove the horse shoe from the coil and clean the rust off the
horse shoe so the coil can be earth. The older coils had a separate wire witch came from inside the coil and was screwed to the horse shoe. Works every time
Very Helpful. Thanks!
Thanks for the vid good info
Real good, I'm going to try now
Hi i just finish completely service a FS 55 an its back firing and not holding any compression. i was wonder what may be the possible cause. i have change ignition coil, piston rings, carburetor, fuel and air filter.
Curious, how do you know the compression is insufficient?
@@Buckwsr when i start it with the choke on, it flies back and make a pop sound
@@lukedaniel9969 That doesn't mean you don't have compression. Possibly the flywheel is misaligned and so the timing is off. Hard for me to really know....
Great video. Question? Where can I get parts catalog for FS55r Stihl. Couldn’t find any online.
I'm not sure where to get a parts list for your model. In my case, I took the old coil to the local Stihl dealer who was able to order me the exact same part. Good luck.
any reason you didn't swap out the spark plug first? or did I miss something?
I don't remember if I tried a new spark plug first or not. Either way, with a faulty coil/magneto, a new spark plug would not have made any difference. The issue was the coil, not the spark plug. Thanks for watching and commenting!
edaced4 you missed intellgence.
Like he said it was the coil pack not the plug or did you miss the part where he checked for spark with a spark tester Einstein.
A new plug would not have done a thing.
The first thing you check for all the time is spark.
Maybe you pull a motor down only to find out it had a fuel problem ...as in no fuel.
The new coil Fs 90 model don’t come with the plug boost.
yeah....a bit inconvenient....
Awesome video.!!! Thanks.!
Thank you for your help
Thanks for the business card trick
Great video!! 👍🏼
2 stock are one of toughest to start engine .
That was a good video well done
Thank you!
You should say shtil , with sh not s and its sounds correctly then. Germany products are the best :)
This is some serious life saving surgery for a weed wacker.
Thanks very much, well done now maybe I'll get mine to work also
That trimmer is made in Virginia Beach. U.S.A
Cool. Thanks for the info.
Made foreign countries, put together in America
Thanks for the simplicity - will try that. Again Many thanks.
Thanks for a informative video - I have a FS250 but the principle should be the same :-)
Great video 😊 thank u 😊
Thank you! Very helpful.
I'm curious how you knew it wasn't the spark plug. I started by replacing that, without success.
The inline spark tester should flash whether the spark plug itself is good or not. Since it did not, I knew the issue was the coil/magneto, not the spark plug. But hey, if you don't have a spark tester, replacing the spark plug is an inexpensive thing to try first.... Good luck.
Spark plug tester determined that,for your coil your can use a ohm meter,if positive is not grounded its good,and should have around 6ohm of resistance if good. No spark normally means,bad plug,bad shut off,or if neither of them its a bad ignition coil. Mine had the shut off always grounding and keeping it off.
I would have replaced the spark plug first. Easiest, cheapest. Also, would have hit the two contact points on the magneto with some light sandpaper.
Tremendously helpful! Thanks a bunch. PS, Mine is made in China. :(
I learned something!! Thanks
It's Steel! Just listen to their commercials. I think they know how to pronounce their own name.
I'm stihl not convinced....
2 stroke is easier to work on than four stroke.
Trimmer won't start :( ,changed ignition coil & new carburetor ,followed instructions
It's hard to diagnose your machine sight unseen. But what led you to believe you needed a new coil and carburetor. Ignition and fuel are two separate systems. What tests have you run?
Very good
I clicked just because it looked like you had your stihl hooked to the laptop🤔
Yeah, well, nowadays, the internet is the most important tool in your toolbox....
So what was wrong with the motor ?
The ignition coil was faulty and needed to be replaced.
Well done
It doesn't matter which lead goes to which tab does it? .... the wires from the switch to the magneto
I assume you mean the wires from the kill switch. So, no, it doesn't matter which wire goes where on that switch. Either way is fine, as it simply provides continuity from ground to the magneto to shut down the running engine.
@@Buckwsr Thanks. Yeah the replacement tabs were in slightly different locations so those wires wouldn't reach but opposite the way it was originally. I still can't get mine to turn over after replacing the carb - ignition coil - fuel lines and filters. The arrestor was clean
Good video
Actually made in Virginia Beach, VA
not a good idea to have combustible liquid next to a laptop, but if the dreaded blue screen has reared its head, and you have house insurance, i say fry it and claim for a brand new one lol
Yeah...these days a computer with internet connection is the most important tool in your toolbox....
Pulls a lot easier if you pull the plug
Great machines huh???like all my stihl equipment its constantly sitting on the work bench....
When it’s run,its like a champ,but they’re broken down so often.
Nice
Continuity (negligible resistance) through the switch is ON/RUN and open/infinite resistance is OFF. I think you have your switch positions reversed mate.
You are mistaken. It is simply a "kill" switch that grounds out the ignition coil and shuts down the engine.
THANK YOU for letting me know my 17 yr is right before ordering! 😁 🤣 🤦
Hi Katrina, do you mean to say you have a 17 year old son/daughter who diagnosed a non-running string trimmer? And that my video confirmed his/her diagnosis? If so, I congratulate you both for getting the job done yourselves, and I am happy to have lent a little help in the process! Good luck!
@@Buckwsr Yes that is what I meant... So I went to RUclips to verify 🤣😁🤷♂️
Made in China 00:13 ...... German company but unfortunately like most of our US companies anymore Made in Chinakistan........thx for the help Buck
Its a STIHL coils always go...!
Fs 90r
Replace one from last summer 7/ 19. (The total time , less then 20 hours )
The coil goes bad last month 6/20 . (Only runs for one season ) ?
The Stihl brand ignition coil completely failed. So yeah of course, pay the extra money for an identical replacement.
If your Ford automobile needed repair, would you use genuine motorcraft parts? If your GM vehicle needed repair, would you use genuine GM/ACDelco parts? Or are you suggesting that we should always and only use no-name aftermarket parts for all our repairs? In my opinion, when you are repairing expensive equipment for paying customers, and you need to stand behind that repair, name brand parts are the way to go. That is my opinion, and of course, you are entitled to yours.... Thanks for watching and commenting.
I am not German it is my step dad's last name and he had adopted me when I was a child he is not my father
Buck i got one just that not starting ,prob the plug...
No way I would mess with gas and dirt and grime With my laptop that. But I bet he is just doing that to see if anyone comments about it.
Mike, Finally someone has commented about my laptop!!! But seriously, these days a computer and the internet are as important as any tool in your toolbox, at least for DIYers like me.....
I'd bet 99% of these "bad coils" are dirty spark plugs. Take it out and sand and clean end.
Your comment is uninformed. Even with a faulty spark plug, the spark tester would light up if the coil/magneto were good. In this case, the coil was clearly not working.
@@Buckwsr Sorry, obviously not in your case.
When the coil has been the problem, on Stihl products, its normally the metal coil that has become detached from the wire. Which is also a simple fix.
Wet your finner, check spark!
Not made in Germany, made in Virginia Beach Va. No joke.
Thanx