This is an incredibly Informative video! I purchased a 128LD string trimmer (new) and used it maybe 5 hours last summer. I have spark and all that good stuff. The head scratcher is putting starting fluid in the cylinder and still no fire. I will check the flywheel and coil today. Seeing the trimmer can't hit anything hard...I'm checking the flywheel and coil alignment today. The concept of the piston approaching the top of the cylinder while the magnet passes the coil is an eye opener for me. I had a Stihl Farm Boss (brand new, just a couple hours on it. Wouldn't run. The difference was the company released a service bulletin outlining the need for the alignment of the magnet and the coil. Thanks again for the fabulous video and sharing your experience and knowledge.
Drill a hole through the flywheel where the key is, or if enough room drill two. Then tap them out and put a grub screw in, worth a try because the flywheel is knackered anyway so you have nothing to lose. Put locktight thread lock on.
I would compare that same unit to mew vs the $80. Some of the huskavarna equipment can be pricy. They usually are good high end also. $80 is definitely cheaper than $300 for a new one of the same.
Thats a hard call on this one...pretty decent machine...it may be worth the $80 for repair, maybe repair it and keep it as a spare. Excellent vid!!! Not too many repairs out there fixing timing issues.
I have the old Husqvarna 223L trimmer version of this. After 10 summers of everyday use, it finally got to where it's hard to crank and stay running. I replaced carburetor, ignition coil, sparkplug, and cleaned muffler before running compression test to find out it had less than 100 psi compression. Now I'm just watching more troubleshooting videos while I wait on the new piston rings and cylinder hone to arrive. If that doesn't fix it, I guess I'll just buy a new piston and cylinder kit for $100.00 . At that point I will have put around $160 into repairs for a 10 year old $300 trimmer. Totally worth it for me because they don't make a trimmer like this anymore. The closest model they have is the 525 professional series which I have two. Although the 525 are marginally more powerful, they are nearly two pounds heavier. The difference between 9 pounds and 11 pounds is nothing for twenty minutes of cutting, but when you have to hold a trimmer for hours at a time, every little ounce takes a toll.
Also, when I get it fixed. I read that it may be better to use higher oil to gas ratio for older engines. All the Husqvarnas I use take 50:1, but I may start putting 40:1 or 32:1 on the older machines. Hopefully this will help them last longer.
Well done diagnosing the problem. I know the key is built in but alloy and now knocked out. Wonder if you could use your dremel with a thin fine tool to carefully grind out a keyway in the flywheel and use a suitable steel woodruff key from your spares. Only thinking. Enjoy your videos. Happy Easter from Perth WA. 🦘🇦🇺
Had the exact same issue with an Echo GT-2000 trimmer that I got for free the other day. Flywheel key was sheared off. Average cost was in the range of $90. I just salvaged the trimmer for parts.
$80 isn't a ton of money to spend replacing parts but for some people, that's just too much to try and save an old edger. I have a few ideas though on how to cut that amount in half.
I find this model extremely aggressive because of how powerful it is. We have the string trimmer version and I have to wear advanced protection when I use it because of my fair share of injuries I got from it
As fart as removing the flywheel goes,I've always had no problems using the Taryl trick to remove it which is wind the nut on & tap it with a soft faced hammer 🔨 or use a soft drift while wedging a screwdriver between the flywheel & the engine. I repaired my dads neighbours McCullough leaf blower by cutting a new keyway into the flywheel then filing a new key up for it out of key Steel which fixed the problem as its aluminium key was sheared off. Otherwise, you could find a used flywheel online !
Great diagnosis, shame about the cost of spare parts, i just worked on a Huyandi strimmer,and no new parts are available from Huyandi !! when they go wrong after a few years, they just expect you to buy a new machine, which i think is very wastfull, if the machine only needed something simple to get it going again .
I would spend the $80 on it been it’s a commercial trimmer and it’s in excellent condition I will try to fine as well new handle for it online and the other parts
I'd fix the old one because the new ones are cheaply made junk. That one is tough and the newer one of the same make and model will be flimsy. I'm looking at maybe $300+ for a NEW tranny for my mower BUT the old mower is 5 times the mower a new one is unless you want to go commercial for several thousand bucks and get the same quality the old mower is now. I've seen the difference between older and new stuff the same model and make and the new is a LOT cheaper made. I drive an 89 S-10 of that tells you anything. So happy fixing and BLESSINGS!
It is old and otherwise junk, just line up the flywheel and tack weld it to the shaft. It isn't like anybody is going to pull it apart ever again and do a full restore/rebuild on it.
I would rather spend $80 because a new one is well over 300 or close to 300 and to top it off the newer they are the crappy are they are so it’s better to fix that one because the engine is still in good shape
I love your videos you are a highly intelligent man who understands How those things work I’m just like you I can dive right into one of those machines and make him work if the damage is not to rush and parts are relatively available.
it’s good you post videos like this because you help people understand some of the key issues their machines may have. It also brings you more customers because they see a reliable person who they can trust to work on their equipment keep up the good work buddy ur doing a great job.
It's the state of Bliss. It borders the country of Complacency and we're considering visiting it because it has some really good beaches. I'll need to update my passport though.
I wish I could find rebuild parts for my carburetor on my Troy Bilt trimmer, everywhere I look I'm told that I have to buy the whole carb, for $70.00. Better off to buy a new trimmer.
@@INSIDEHOUSEGARAGE just came from Amazon. My Troybilt trimmer is a TB20CS, uses 753-05133 carb. Amazon states that I need to know if my carb is a WT-827 or a C1Q-P22C. Have no idea how to find that info.
