STIHL FS55 Weed Whacker Has No Spark! Step By Step Repair With Donyboy73

[@donyboy73]

🔻Watch next 🔻 Simple Trick To Diagnose A Bad Ignition Module (Coil) On A Lawnmower, Chainsaw, Weedeater Etc. kzbin.info/www/bejne/nIGZmWxtedmEgrM

[@henerker]

Best advice from Don: “…get your screws started right away” and you’ll stay out of trouble with that cover assembly. We can definitely perform this repair ourselves and save money. His experience is worth every penny!

[@rphiliprogers]

Phil from Kansas City here. When I work on string trimmers at my Stihl store in south Kansas City especially the 4140s and 4144s, I remove the drive tube from the engine assembly and housing. I use a sharpie to mark the where the meets with the throttle housing to give me a reference point to verify the seating when I reassemble the tube and engine assy. I do this because I find it less frustrating to fight drive tube as I perform a complete engine check on the unit, which I perform on nearly all units that come in to my shop. Another tip I have is when I work on a shafted unit with the shaft in place, I use a Portable Rifle Cleaning station to hold the unit level off my workspace and most stations contain a tray that can utilized to hold the fasteners and items you remove during the service process. Thanks and have a blessed day

[@philliphall5198]

Makes sense to me, will start doing it, thank you 😊

[@richardchayer6597]

Good tip on using the vice grips to hold everything together with the top cover off

[@zacharykurik7523]

also a tip is if all 5 bolts fall out 4 are long 1 is short the short one goes in the middle where the shaft is. only reason is if you get them mixed up and put a long one where the sort one goes she might not pull over and the shaft hits the bolt making it seem like the motor is seized. Not sure what it hits but pull cord locks up. great video donyboy73. those are hard to handle when apart they get very floppy great tip with the vise grips!!!

[@deanmsimpson]

Steve's Small Engine Saloon just covered this very point recently in one of his videos 👍

[@Lone-Wolf87]

I have learned so much from these videos. I live way out in the country side and there is no shop anywhere near me. I have learned to fix my own equipment. Thank you for uploading these videoas.

[@dtsouza2519]

Always the best small engine equipment repair videos. The camera gets focused on the import details, does a great job explaining the symptoms and how to fix them.

[@seastacker8582]

Have had this same trimmer for quite a while. I remember the coil went out after warranty years ago. Stihl took care of the part, I had to pay the labor at the dealer. Not a bad deal. The fact they warrantied the part told me they must have had an issue. I’ve had several pieces of stihl equipment over the years and that’s the only coil I’ve ever had go out. Great video.

[@adnacraigo6590]

You're a good teacher.

[@harrygrimley4352]

Great job. Thanks for sharing this with us.

[@robertmailhos8159]

You are definitely brave to be holding your hand on the spark plug I've been there did that back in the day on my grand Daddy's lawn mower it was a shock I didn't expect 😮😮

[@garyalensr]

I know right? These little units put off some juice. I've gotten juiced several times. Doesn't feel too swell😂. Hope all is well with you and your Misses my friend.

[@donyboy73]

Thanks!

[@tannerc900]

Funny enough the exact same thing just happened to me on a generator a few days ago. Got a jolt and didn’t expect it. Instantly went and bought a spark plug tester lol

[@robertmailhos8159]

@@tannerc900 thing is that the voltage is 10 to 20 k at 2 to 3 amps DC ouch 😳

[@tannerc900]

@@robertmailhos8159 yes.. definitely not something I’ll be putting myself in the position to possibly get that again. Spark plug tester all the way from now one 😂

[@zeke1eod]

Hey, thanks for the share! Stay safe, and God bless

[@CraigArndt]

I owned that same unit, bought new and it would die after it warmed up. Dealer replaced the ignition module after two times taking it back to the shop. The new coil worked for years until I scrapped the trimmer.

[@TSGEnt]

Love you videos. Very informative. Thank you for providing true value on the internet. The coil must be getting over heated. I see it's very close to the cylinder head with no heat shield between. Compair the FS38 design to the FS55. That may give a clue to why the FS55 coil fails more often and what the solution might be to prevent future failures. I just looked at an exploded view of the FS38 motor and it appears the coil is mounted such it is not completely on front of the cylinder head. I may be wrong. You might look at the FS38 if you have one to verify.

[@johnsmith-wd5sq]

Donyboy is my Favorite Canadian!

[@donyboy73]

Merci!

[@kencurtis228]

TY for Sharing

[@marttrev4279]

Thanks for telling us how much to charge, I always wonder about that. Great job as always.

[@robcole332]

Another great one

[@RussellBooth1977]

I know with the Stihl HS45 hedge trimmers it's not just a matter of fitting any HS45 hedge trimmer onto the machine because half way through the model they changed the ignition coil & the position that the flywheel key was indexed so you need to match the serial number of the machine up to the ignition coils part number because they're different after a certain serial number !

[@feez357]

I have one of those HS45s. No problem with it yet but I wish I could store these tidbits of info in case I need it in the future. Maybe I'll remember this comment and look it up.

[@philliphall5198]

It took me a week to figure that out…😢

[@RichardSivonen]

Hi donyboy73, I have a fs 38 and never had any issues with it. Run the heck out with it, clean up and do some general maintenance and clean up the spark arrester. Put away very pleased 😀 it. Have a great day. 🦅🦅🦅😄

[@gado6438]

The best trimmer Stihl used to make.

[@stoolie10]

I replaced a coil for a friend who had a stihl backpack blower with a used coil off eBay. Way cheaper all the way around plus eBay stuff comes with a guarantee when you buy it that it will work or money back.

[@seanmcgillicuddy956]

You make it look sooo easy ..

[@famasmaster2000]

Awesome video Don and nice fix !👍

[@donyboy73]

Thanks 👍

[@tonym6920]

Do you find it easier to change out coils on an Echo trimmer? Thanks for the vid Dony, have a great weekend., 👍👍

[@Mechanicturfgear]

lol had two ignition modules lately . A BG 50 and a BR800C .The 800 only had spark at a higher rpm . ( I used a drill to spin the crank on that one. Had a few grounded out kill switch wire too before . I used the paper from the box it came in . About .010”

[@danmorrissette4814]

Thanks

[@AntonioEstevez-l7g]

Hola dany boy soy de España podrías hacerlos en español seria fenomenal gracias

[@meng6315]

As always great job.

[@nova481]

Hi Donyboy, great video as always. Thank you. Have you ever found resistors in the ignition coil shut off and safety circuit, I just did in my 30 year old Yardman tractor with a B&S V-twin.

[@bobbyscott8024]

Well done Dony!

[@liljoeii6091]

Thank you for the video

[@jesterr7133]

Do you ever clean the connecting points on the old one? I have had a couple of them come back around with a good cleaning. They just stop making a good connection due to rust and dirt buildup.

[@samrugtiv3839]

Good job

[@brianmcconnell7988]

another great video thanks dony !

[@maitajack]

Merci Dony. Très bonne explication comment démonter et remonter les morceaux en plastique. Pas facile mais avec votre méthode et les Visegrip c'est "a piece of cake". Salut bien de Montréal.

[@donyboy73]

Salut de Muskoka

[@AyuPerezsaucedo]

Hola Donyy feliz día una pregunta maestro me trajeron un generador de la marca Yamaha qué cree no me arranca limpio dos veces el carburador y la máquina sigue sin arrancar la bobina tiene chispa junto con la bujía revisé las válvulas y están bien qué me tocará revisar maestro si me dijera por favor gracias saludos

[@BearE9090]

Thanks, another great video.

[@petebergen6178]

What is the difference between the fs38 fs45 and fs55 ?

[@danielesilvaggi]

Hey Don love the channel, I purchased 2 B&S 17.5 hp motor on a scratch and dent sale from Princess Auto and one of them has no spark. Now would this be coil related or is there a safety feature that is preventing it from sparking as the other one is not sparking as well but that one has a blown engine and useless? I have it on a makeshift engine stand to work on it. Thank you in advance

[@philliphall5198]

The GX 55/56 coils don’t last very long eather, I’ve changed alot of them 😢😢😢

[@elcheapo5302]

Every time I see someone take a Stihl apart I'm reminded why I buy Echo.

[@turbineking7154]

Can anyone tell me what is usually the cause of fuel leaks on a 10 year old fs56? I suspect the weird fuel tank vent line. The plastic piece comes apart when trying to pry out of the tank.

[@philliphall5198]

Replace all the fuel lines and filter Very common problem

[@georgemartinez1720]

Working on Chain Saws Blowers And Weed wackers Are opening a Can of worms

[@41plymouthnut87]

👍

[@jayytee8062]

Terrible design with the plastics.

[@davidgunter7162]

I am waking for a flywheel for fs55

[@94jimmy5]

Excellent, as usual! Thanks!