Chinese Chainsaw Challenge - Will it Run? (Unbelievable Amount of Problems)
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- A subscriber purchased a used Kraftworld KW-5800 chainsaw and sent it to me after he ran straight fuel in it. It has not started since. The compression feels low and the engine likely burned up. Can it be be fixed? Should it be fixed? Lets take a look and see if we can bring this one back.
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4500, 45cc, 5200, 52cc, 5800, 58cc, Air Leak, Borescope, Broken, Carburetor, Chainsaw, Chinese Chainsaw, Clutch Removal, Compression Test, Crank Seal, Fixed, Flywheel Removal, Fuel Line, G5800, Garbage, How To, How-To, Impulse Line, Junk, Low Compression, Pressure Test, Repair, Running Lean, Small Engine, Starving For Fuel, Surging, Trouble, Troubleshooting, Vacuum Test, Will It Run, Will Not Rev
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The expensive cost of buying cheap equipment.
You can buy once, cry once; Or buy continually and cry later at the hideous cost of repairs.
With just the time in labor and research alone, you could probably buy 10 of these saws and hope you get a good one, or buy one really good saw and not have to deal with these problems.
Even worse I found the link below. These saws sells for about $32 wholesale. www.alibaba.com/product-detail/High-Quality-Chainsaw-2-Stroke-5800_1600488897662.html?spm=a2700.7724857.0.0.56914d5fpTvqza
@@jcondon1 Really sad to see mass produced junk like this, it's a gravy train for unethical salesman. I'm sure that these saws are going to end up in landfills and junkyards across the world. If this one saw has so much wrong with it, you know the rest are going to be of similar quality, especially for $32-$50 a saw.
Amen!
thats usually true..........but then I own a little chinesium 12" saw and it has been awesome.......its small,handy and makes pruning down medium trees up a ladder very easy. Is it a trade tool, of course not.......but it has been very versatile and worth the AUD $100 (US $67) I paid for it.
@@wazza33racer Chinese engines are not bad 100% of the time, I have a snow blower with a Chinese engine (Briggs and Stratton) that has started first pull and operated flawlessly for 4 winters now. But, in general the Chinese engines have far more serious design and manufacturing flaws than required to offset the attractive price. I have considerable business experience attempting to source quality products from China...the horror stories far outnumber the successes.....it's a gamble with unfavorable odds.
Whatever you think of the saw, this was a masterclass in small engine fault diagnosis. Thank you and the group for putting in the time, it was very instructive for a DIY guy like me.
One thing about buying a Chinese saw, when you get OEM parts, they are Chinese.
Life lessons in patience and perseverance as well. This video made me a subscriber. Also this was not a long running video for me, I backed up sections to rewatch and absorb your methodical problem solving.
This is without doubt one of the best chainsaw repair video's l have ever watched you have the patience of Jobe and your diagnostic skills second to none it was a privilege to watch ,thank you.
I think you should introduce him to your sister
Yeah, or ask him to be the best man at your marriage
Except for parting the saw and change bearings and rings, yes I agree with you 100%. Good job James.
Everyone who regularly watches would agree. His patience and ability to accurately trace/diagnose the true source of a problem(s) not only makes watching enjoyable, it makes learning easy as well. Btw; in case you're interested, it's "Job" not Jobe.
Did you watch till the very end ? He gives credit to other professionals who brainstormed with him .
Hi, Mr. Condon. I live in Thailand. My in-laws own a hardware store in Udon Thani called Udon Hardware(อุดรอุปกรณ์). They sell this type of chainsaw. They range in prices from 45 to 130 usd. Oleo Mac makes a version of this design that's very reliable( model GSH 562). You are working on the less than $100 version. They are notorious for having bad rubber tubes and seals that degrade fast, defective plugs, cheap coils, and more. We have to start and tune every chainsaw we sell. The average consumer here will not be able to start it, much less diagnose it. It's hard to believe, but most are easy to start and run correctly with a bit of tuning from the factory. The US markets are getting saws from the bottom of the barrel. Fortunately, this design is not the worst one we have come across. There are a number of chin ese manufacturers using the same mold and rebadging them for different markets and price points. Sadly, they have turned what was once a simple and effective Japanese design into a laughingstock.
I like the design, but it is sad to see something so new with so many issue.
I am sure the import taxes and shipping costs Jack up the prices of the saws.
So your saying your parents sell this chainsaw for $45 USD?? How much do they buy the chainsaw for? I'm so curious
@@bye92 What I meant was. I've seen it sold online for as low as $45, minus shipping costs. Companies here will contact a chinese manufacturer directly and import one model by the hundreds, more likely 1000+, and sell it directly on sites similar to Amazon. Of course, there is taxes, shipping, and web platform costs to consider. The margins could be as low as $4. What my in-laws do in their store is go through a wholesaler. We buy maybe 50+ units for about $45 and then sell them for as high as $65. The difference in margin is do to the extra service local stores have to provide to the costumer. For example, our shop tests and tunes every chainsaws that goes out the door. There are also the limited parts warranty we provide and the labor is also free for said parts. If we had the capital, the first method is the better business model. Good luck.
I have a couple of Salem Master Saws that look very similar to what he is working on. I don't know if the quality is better, but I have had them for a few years with intermittent use with no issues
The key, though, is I use premixed fuel.
James, you have the patience of a saint and definitely tons of persistence. I would have given up on a cheap Chinese saw after about 15 minutes, but I guess that's not the point of your videos. Keep up the your excellent detailed diagnostic approach and you are a fabulous teacher of a dying profession.
Thank you
James where did you buy the chainsaw sharpener?
Sir, may I say you have the patience of a saint and a vocabulary to match. This saw would have pushed me right over the edge. The entire machine is made of Chinesesium. The craftsmanship and quality of the material are atroches.
Cheers from Louisiana.
I bought one years ago off of Ebay. I think it cost $79.00 back then and came in a box that just said chain saw with no other markings. Except for the bar oil leaking all over the shed floor it always starts and runs. Best thing about it you can leave it in the back of your truck and no one will touch it!
These aren't as bad as many people say. I bought one last year for around $120? (Bidenflation) it works fine.
Old cooky man in comment section talking about a homelight passed down from his grandfather to him. Claiming its ran for millions of hours with no problems 😂
It's a 2 stroke not a diesel engine that can go a million miles.
@@michaelbrinks8089i dont chainsaw, i just like to watch these kinds of videos. I read cheap chinese chainsaws can run fine for long time if you take care of them just like with everything else.
Btw a million hours is around 114 years not counting leap years.
@@norbertnagy5514 Seems like something is still wrong with the saw in the video. With a sharp chain it should be cutting those logs faster than it is. Sounds like the engine at full throttle isn't reaching proper/high enough RPMs. Like something is restricted. Its possible its a factory dud. For the price of mine I was Happy with the quality & didn't end up with a dud. I inspected the engine before starting & it didn't come with any dirt inside. Like my 2 stoke motorized bicycle engine did. It was full of factory and metal shavings. Had I not cleaned it b4 using, it wouldn't have lasted long.
Before I bought my China saw online. I checked at Lowes and Menards. Their similar 52cc saws were also from China but cost 2x as much.
In hindsight I still would have bought the cheap China saw I bought.
@@michaelbrinks8089 yep, i noticed it stalling a little in the video.
@@michaelbrinks8089 Back in 1953, one place I worked for received a pair of 500kW Mirlees diesel generator sets (engines from submarines, larger than the average SUV without flywheel and generator attached). These were torn down on a whim before first start, to find a sump and cranks full of metal shavings - "Quality British Engineering"
(Ie: it's not just China which has QC problems)
Wow ! James that was an exhausting ordeal to watch ! I'm pretty sure at around the 45 minute mark I would have scooped the whole mess up and dropped it in the garbage can. You have stamina my friend and an amazing amount of patience and knowledge ! Oh and the customer is going to receive a bill for $795.00 LOL
You’re a better man than I , Mr. Tony. 30 minutes would have been it for me. Lol
Haha. I hope and expect the strategy involves TH-cam income for a very interesting video. The easy ones are boring 😎
The easy ones are boring and your don't learn much.
if not before as soon as the clutch went flying it would have been tossed into the scrap metal trailer or shot with a rifle to put it out of my misery
@@jeffvickers93907😢🎉n😂nkmjmkkiuljmimk96k
I own two Chinese clone saws and they have been good saws, but this is probably the best diagnostic /repair video for this saw on all of youtube.
the real cost of those saws is hidden from you it involves geopolitical takeovers. and controlling countries like hong kong and taiwan
Yes and I will be checking my pulse tube tomorrow thanks bud 👍
We have thrown away 3 chinese shit-saws so far, and will probably Never again buy such chinese shit.
I owe you a great debt for you sharing your knowledge with me and the rest of the TH-cam community.
The input of the collaborators you mentioned are also to be commended for helping you deliver all of this information.
Just excellent !
Thank You !
Sounds like too much are in need to get air cleaner on there
The saw was worth fixing for a video. I personally learned a lot. Thank you for taking the time to teach.
Gosh, what a journey! There's a reason most of this stuff from China ends up in the trash. Clearly this video is where the value is. So glad I have a Stihl. Thanks for sticking with it James.
My take from all this?All saws break and are finicky but parts for these saws are cheap and plentiful unlike my old Mac and Poulan.
Another award winning job! Your determination to get the saw working correctly is unparalleled!
I sure hope the factory gets to see this. They've probably never seen one run.
Yea no doubt, bet they don’t even know what they’re used for😂
@@mikerossman9863 I don't think this saw could make it in that part of the world knowing what kind of trees they're dealing with
Chinese saws are to steal jobs from the western world
He has patience I would have thrown it in the trash!
The Chinese factory doesn’t care. They have their $$$$$!
This guy is like a scientist engineer, he likes the challenges without concerns on time or money, fascinating to watch, like an apprenticeship 👏
I laughed so hard when the clutch flew off. Hats off to you for fixing all the problems.
I am astounded by the amount of patience you exhibited in the diagnosis and repairs of this saw! I am known to be a patient man, but about halfway through this process I would have placed third in the "Chainsaw Toss" event in the power tool Olympic games! Great video (even at this length it was entirely watchable). All the best to you, James!
Yeah, I would have used this for target practice with a 50 caliber muzzle loader!! Would at least got some fun out of it!
Well, he also knows the camera is on!
@@fredsanford336That wouldn't stop me.
Ain't that the truth!!!!!
A friend and I each bought one of these saws about 5 years ago and both saws have done a lot of work. Mine needed a new start pulley. Those 8 mm flanged nuts can be found on 10mm Dynabolt masonry anchors. Excellent video, i much enjoyed the clutch taking off across the shop.
It is most gratifying to see that even the most competent end up paying the Dumb A** Tax upon occasion.
Hi , James ,
Well done as usual. I am now physically disabled (stroke) and can't do many things I used to take for granted . I hold an aircraft mechanic license and about every pilot certificate available.
Watching you systematically troubleshoot is very therapeutic for me. Thank you.
Did you ever change out the chain oil ?
When tightening your bar/chain, lift up on the bar to get correct tension on the chain.
Correct.. and check tension on the bottom, not the top.
Hmmmm- I have never heard that advice but it makes sense.@@Look_What_I_Did
Well… I could have watched a movie tonight. But instead I watched nearly 2 hours of a man fixing another man’s chainsaw in one sitting. I guess that’s age. The amount of times I expected you to throw it off your bench and move on with your life. I certainly would have. You’ve got some knowledge and patience! Well done getting it running. Even when the clutch flew away 😂 loved every minute .
Thank you , I watched this long video all way through. I bought a Husqvarna over 40 years ago and is well used and no repairs ever needed.
I learned from your video that clutch is left hand drive thread. I would have been tightening it!!!!
Just to add it is all about build quality.
I have a small engine shop. I made the mistake of buying one of those Harbor Frieght pressure testers once. I promptly got rid of it and bought an OTC brand and it is SO much better. Plus, the company stands behind their tools 100%. The model I have is an OTC 5605 if anyone is interested.
Waisted a lot of time with the HF tester. Works good enough on larger generator engines but not small ones like on a chainsaw.
I have two Harbour freights, a Mastercraft, a Snap-on, and two Starrets. They all read slightly different, I just average between them all. My Harbour freights are more consistent with the average than the others.
Ah, Chinesium! They didn’t even charge extra for the added rubber bits in the impulse line. That was fun working with all of us!
No extra charge for pre-cracked fuel line and already ovalled seals!
The Chinese are laughing at us while we buy products made in china!
Not to mention the random piece of aluminum he found when he removed the muffler.
Former Auto mechanic here. I have little experience with 2 stroke engines. This is a great video on diagnosing this chainsaw. You really didn't have too much money in the repair if you just count the seals and fuel line. I didnt realize how much bad engine seals can effect how a 2 stroke motor runs. I've had tons of car engines that leaked like hell. Bravo on the video. You have a broadcasters voice. Thanks for taking your time on this video. This video is a chainsaw master class!
I must say that I was very impressed with your repair and the determination you had to the very end. I couldn't believe the many problems this saw had. Great job.
But is he like this for every repair job he does??? I’d guess no freaking way in hell but who knows?
I've had one of these for about 14 years. It hasn't had heavy use, just occasionally, but I've always had problems with it. This video is going to be so helpful to me in the future to keep it going, so thank you !
Another great video James! Just a note: When tightening the bar cover nuts, lift up on the end of the bar before tightening then tighten while holding the end of the bar up. If you don't, the chain will loosen after the first running, needing another adjustment sooner.
I am guessing you mean up if the bar is lying flat horizontal
@@mattj7124 Nope, vertical. At the end the video, James did hold the end up for the final tightening.
I've always used drywall or sheet metal screws to get these seals out. Lot less likely you'll get shavings in the bearings. Also gives you something to grab.
Yep or drive a straight pick in with a hammer then flip out the seal, that's how it's taught at trade school. Professionally, speed is of the essence, no time for drilling and cleaning out swarf, plus showing the client the problems at handover doesn't get them worried their crank case is full of crap.
I want to praise your dedication into fixing the saw. You went way beyond the pale. My hair and my hair are both off to you, you did a phenomenal job. Especially with troubleshooting the numerous problems rather than just replace all the parts at once as most repair people would do. Once again kudos to a job well done.
I've watched many different repair videos on small engines and definitely found this channel to be the best of all.
Your videos are certainly of professional value and haven't yet see you throw the towel in because of a problem diagnosis.
Extremely patient and determined to find the problem and fix it.
I've yet to see a half way slap stick repair .
Wonderful job and thank you !!!
I could not have figured the plugged pulse line. Kudos to James !
I don’t think anyone would argue that you could easily work anywhere on the Kraftworld assembly line after that ordeal. This near new saw came from the factory with stripped nuts, blocked and cracked lines and a dull chain? How is that possible? I burst out laughing when that clutch clutch exited stage right. Glad you didn’t wear it. Love your vid’s. Learned a ton.
Yeah I was in South Korea in the 80's and saw "factories" that were tiny out-buildings next to the workers' home with dirt floors and three very skinny guys doing their best to build things with terrible tools and no training. I'll bet the low end of Chinese manufacturing is like that. It's a spectrum. At the other end are the folks who make iPhones.
I think the saw suffered two bad users before it made it to James. First owner ran with the break on, second owner ran straight gasoline with no oil. The fact that the saw died as quickly as it did may have ultimately saved it. . . from the end users.
Unbelievable James, Your Knowledge and Patients. You bring new meaning to the phrase "If you never give up - you're never disappointed. I truly admire your determination and stamina. Thank you for all that you do.
Great video. In retrospect, the fuel leak onto the table at the start was an indicator of the fuel line problem
I've been looking at a problematic chain saw which has some parallels to this video, so this video has given me some pointers to look at areas I'd not considered before - so, yes, your video did help someone - thanks :-)
My carb screws were around 3-4 turns out, so an indication of a bad carb, or an air leak. Usual maintenance and replacement bits didn't solve things, so a replacement clone carb was fitted, this had two faults direct from the factory which sent me down the wrong rabbit holes for a while. The spring under the needle/seat was mashed into the fastening screw and would have never worked, the second was was that the tip from the high jet had snapped off in the carb and was completely blocking the high fuel delivery. Think I'm going to check any subsequent carbs and adjust them before use.
I'm currently waiting on another replacement carb to arrive, but it looks like I've got an air leak to locate and I know the techniques to locate them now - thanks
You do have the patience of a saint after the 4th episode I would have been looking for the trash pile. I just could not let go watching you not giving up! You are indeed a professional and at the same time entertaining. Good Show my friend we need more like you in this world.
Fascinating!
I bouht one of these and immediately found that after use, even with fuel stabiliser a week later it wouldn't start. I found that the float valve seemed to be sticking closed and the impulse line pressure wouldn't open it. On examination I concluded that there was a problem with the coating on the conical head of the float(fuel intake) valve, which was causing it to stick in the closed position.
After some thought we fitted a normal purge thumb pump in a new hole in the left side and the extra pressure generated by the little bulb pump seemed to unglue the t float valve, allowing the float chamber to fill normally. This seems to work!
Another great video Jim. Just another example of the age old expression: "There is nothing more expensive...then cheap".
than
The word "then" means sequential.
Incredable - nearly every possible problem a poor running + non running chainsaw could have. Amazing the pull rope & recoil didnt brake. You're the best 👍
I was expecting that piston stop to come flying out of there.
watching the video I was certain that saw was a lost cause. Then one by one you meticulously went over and repaired each obstacle. In the end the saw looks and runs perfect. What an incredible video it kept me on the edge of my seat. 😎 👍
I'll say it again, after most others have already said it. You're amazing. Thank you SO MUCH for not giving up on this saw. Because it should have been abandoned--EXCEPT for the value it allowed you to provide to people like me as we watched you troubleshoot & diagnose & repair & replace. I learned a LOT, thanks to you not throwing in the towel on a saw that, while "new", obviously isn't worth the value of my old Stihl 024 AV Wood Boss from the 1980's (which still runs like a champ today). I was frankly dismayed, even shocked, at the poor quality control of the materials and assembly in that new Chinese saw. The words on the bar are obviously that--only words. "Professional" industrial equipment MUST work and BE better than that saw. If only the line workers, their supervisors, and their bosses in China could watch & understand this. They'd be embarrassed and ashamed. If their political leaders saw this, well . . . heads might literally be lost. You've made a follower of me. I don't repair / tear down equipment frequently. But when I do, learning the tools & procedures & challenges from someone like you will save me time & frustration & money. Thank you for the great job you did explaining your thought processes & actions & logic of diagnostics!
Absolutely the best I have seen on here. Very educational and informative for us who tinker around with these small engines. First time I have ran across your channel, and you certainly earned my subscription. Thank you for being so patient and so detailed!
A Chinese chainsaw that has unbelievable amount of problems is actually believable. 😂
quality out of control.
What was your total time and labor and how much in parts to fix this chainsaw? I know you could’ve bought a new one for what you have into it but I’m curious.
@@truthandlies-nl1ri $50 excl man hours. New one he said was on discount and was $35!!
All over the place with qc.
@@donlod322
Xx
That was a great example of methodical troubleshooting. Well done James!
Great video. You have incredible patience. If it was me, that saw would have been flying through the air towards the junk pile a long time ago!!
I gotta say I'm impressed with your knowledge and dedication to resolving this problem because if it was me 15 minutes in I would have looked up a random wedding nearby that was coming up and tied it to the cans behind the car because just throwing it away wouldn't satisfy me 😆
lmao -i hear ya
Wow --- Rookie Mistakes and a Cheap/Junk Saw both -- On many Husky saws you'll lose the clutch if you run them without the bar/chain --- I've done it ---- On the fuel line, you use the old line (where it goes into the tank) as a "grommet" and run the new non-molded line through the center of the old molded line (quick fix for Stihls, and others, that have molded fuel lines and you don't have a new one in stock) ---- I used to fix saws 6 days a week for a shop ---- Nice job on the Crank Seals !!!! ---- But the hole in the fuel line was the main problem (crank seals were a bit leaky ---- cheap/junk saw) ---- Great/Entertaining Video !!!!!
Wow, that was quite a marathon. The saw was asking to go to the recycler at each step. Amazing you were able to get this running better than new. Very well done.
A good example to show how even a simple 2 stroke engine can have a lot of issues. Some in this saw may be the design, some may be the parts, some may be the manufacturing.
Some nice spalting in the wood of the bigger log section.
Dave.
I've had a 52CC cheap ($100) Chinese chainsaw. Starts on usually 4-6 pulls tops and cuts extremely well with an Archer Semi Chisel chain. I've never had any major issues with it.
Your tenacity to keep up after this saw with its many problems due to poor quality control and cheap parts is impressive love the warp speed camera shots along with the many camera shots showing the issues and solutions fascinating how you diagnosed each problem, your editing skills are just fantastic! I just keep learning more from your videos. Thanks, James
You missed the key points of the video. The previous owner said he had used not an oil-gasoline mixture, but only gasoline. The pure gasoline fuel deteriorated the fuel line creating cracks. The multitude of cracks in the fuel line allowed the engine to suck in excessive air depriving fuel to the engine, hence, the engine stalls and resists start-up. Finally, Condon mistakenly torqued the clutch connectors too loose. Consequently, the engine destroyed the clutch once it started. YTuber Project Farm evaluated this $100 USD chainsaw against the $500 Stihl, and found it quite a compelling buy. Don’t assume made-in-China tool are poor quality - that’s the dogma certain domestic tool makers want the gullible consumer to believe.
This is a great video! For anyone not familiar with “clone” saws from China, they wildly vary in quantity and specifications. This particular model is a clone of a zenoah Japanese saw. They have a very good design and like stated, very popular worldwide. When buying a clone like this, you will see them advertised as 40-62cc. Most often, when advertised as larger displacement, they are in actuality not. That JonCutter you showed at the beginning would be considered more of a better quality zeboah clone. While the same design is used, the quality of plastics, castings and assembly are far batter than the cheapest eBay cheapies. They even have better fuel and oil caps.
We had a giant tree fall on our car and driveway . They wanted 1200 dollars to cut it up . While I have the orange S saws but bought one of these similar with a longer bar. It was a beast of a saw and cut it up lime butter. Win win for me . I mix my own fuel . I highly recommend for the DYI person . Paid for itself over several times . The cylinder is scored and rings toast from the heat . Owner operating error. Cheers
This episode came at just the right time for me, as I’m restoring two old 18” chainsaws (Homelite and Craftsman). I thought I had a pretty good grasp of things, but your video helped me see some potential issues before I pass them over. Super helpful!! FWIW, I found myself talking to you during the video saying yes, yes, I agree, NO, don’t do that!! You would have done the same for me. 😂
Fabulous trip down the rabbit hole. Enjoyed every minute. And you got some new tools, too!
James I envy your patients, just watching the video I got frustrated with this chainsaw and would have just chucked it! But you made it a great educational video, kudos my dear sir!
There is a tool to tighten the clutch to the crank shaft or you can make one or you can start the saw with the chain brake on and try to rev it up and tighten the clutch, but sawing a log will also tighten the clutch after you get the saw running. You also have a vent line and filter, or vent filter on the fuel tank - lets air in the tank so fuel will flow out. Worth fixing if you need a saw and have time to fix it and the parts are cheap or in expensive enough- might save you the cost of approximately $300.00 dollars to purchase a similar new saw.
Instead of drilling the seal and chancing some chips getting inside, just drive a drywall screw in and pull on it. Works great.
No it does not.
@@zonenuke
It might do for him.....???
@@JohnSmith-yv6eq Nope. I've been watching him for a long time now.
He then named it Frankenstien's Monster 😮
Great video regarding 2-strokes in general, and saws specifically. Crank seals are definitely a very big deal in this case !
Wow. Seems like that saw was a piece of junk straight from the factory. I admire your patience and perseverance in getting this saw running! Congrats on turning another item that would otherwise be in a landfill into a useful tool.
not really.. the idiot that bought it used straight gas without oil mix.. ruined it completely as it started fine.. ran a few minutes as it ate the rings without any oil and killed it.
I've had one of these for years of use and abuse. Worn through 6 bars, the oil cap perished through, Pull-cord has come off a few times, but all in all for what I need it for it was great value. Need to do a service on it now, I'm pretty sure it's probably due a spark plug at this stage. By the sounds of things I really hit the lottery with mine 😂
This was very interesting to watch but exactly why my 34 year old metal McCulloch still runs!!! No teardown ever even if it's a bit worn out. You get what you pay for!!
Seriously James, you truly are impressive to watch. Thank you for sharing these videos with us.
Jim, you owe me 6 bucks for the 4 coffees it took to get through this entire video!
Wow that was amazing. I appreciate that you did not give up. The knowledge gained from your video was well worth it. You are definitely the most tenacious trouble shooter I have ever seen.
I trashed a few 2 stroke engines when i first started. Lost some to dirty fuel, now much more careful about keeping fuel bottles clean.
Hi James, My story: Fourteen years ago as a new homeowner I bought one of those cheep at dirt Amazon Chain saws ≈ 100. I just figured I'd be nice to it and rub it weekly with a clean cloth diaper in a slow circular motion and put good gas in it. It should work real fine and last a long time. I cut down and cut up only one tree about 8 inches in diameter. Took about 45 minutes and at the end of the job the saw quit and never ran again. As a newbie I took the saw to ace hardware and the guy told me it was done for. Scorched cylinder wall he said. It would cost more to fix than a new saw he said. I took that saw home and with the help of the kids we invented a game much like horseshoes of throwing the saw from one end of the yard to the other for sport. This video helped me work through that painful memory of wasting a hundred bucks on cheap Amazon Chinese junk. I really appreciate the thorough disassembly and diagnostics you did on this one. Yes, I left the Ace with an ECHO CS-400 18 in and I use it all the time.
The crankshaft seal should have high-temp sealant on the outer rim. Not every brand puts it on from the factory, but they do better with it, especially at the engine pan interface.
Excellent investigative work James and great find on the obstructions in the fuel line. Continue the good work, love those videos.
That massive leak out of the crank shaft seal makes a bunch of sense why it has so many issues
Running a new engine, no matter where it was made, for several minutes at high revs without any lubricating oil is going to damage piston and rings at least. Remove head and cylinder, check the bore, if OK fit newpiston and rings, rebuild, mix two stroke oil and go to work. Rebuilt so many that was run on neat fuel, not correct two stroke mixture. Not complaining, did it for a living, paid my mortgage and now enjoying my retirement
Wow, I'm again impressed! You need a lot of experience to connect the dots and not getting frustrated...
But as you said (differently) - If you buy cheap, you buy twice... ;)
Thanks for filming, collaborating with your peers and sharing this video and putting so much effort in it!!
Hi James. I couldn't help but get a good laugh when the clutch came right off! lol I blame the substandard saw and not you for sure. Guess what brand of saw I will avoid at all costs? Yep the Chinese clone ones. You get what you pay for, and in this case you get what you cross your fingers for. Great work and huge patience as always James.
I had to subscribe and give a thumbs up for the immense amount of patience that you had with that Chinese piece of garbage. The fact that you found the problems and fixed them says a lot about your mechanical ability. I have been running saws for many years, yet I still learn new tricks and details from watching videos on YT. Thanks so much for posting.
The threads on the crank actually look rounded to me
It's an odd measurement...1mm rather than the usual 1.25mm pitch.
@@JohnSmith-yv6eq awww okay that makes sense
With oil all over the place; worn out seals, extensive fuel line damage and a chain that couldn't cut butter, somebody wore out this machine before unloading it with just 2 minutes left. Your problem-solving skills are amazing and your perseverance turned out a really great video! Good conceptual understanding of 2-stroke insights and technology.
Wore it out without a the slightest bit of deposits and wear on the piston and cylinder walls?
Good job getting that saw running! It is indeed a struggle with these Chinese chainsaws. On mine I had to replace the starter, the spark plug (out of the box not running), had to fix the cables, had to replace the piston and the cylinder, and worst of all a very common defect of these saws (which I am surprised you didn't encounter) is that the "weld" between the two parts of the fuel tank is extremely weak and I had to glue it anew with liquid metal (which in America is called Flex Seal or something like that). I did that on three different saws from the same "brand". Oh not to mention the carb was completely out of tune (again out of the box).
Many people say it is not worth it because you can just get a new saw and they are right, but the experience and knowledge you get are priceless (at least for me) plus you get the satisfaction of repairing your own tech which is always nice.
Great video, subscribing.
I suggest this person gets a battery operated chainsaw instead 😂
Also much better for the neighbours
A great example of why TO NOT buy China's junk. Thank you James.
I do agree with you about China but It really wasn't the saws fault it was the guy that strait gassed it. I was given as a Birthday present a Chinese backpack blower EB650, and the thing is absolutely amazing!!! I blow snow, grass, leaves, rocks sticks, and whatever needs blown away. In my opinion if someone uses the right mix and does the proper maintenance the Chinese machines will work and last. Just my 2 cents
@garyalensr James stated the straight gas did no harm. China is selling inferior products to America. Companies like Temu owned by communist China will ultimately ruin this nation unless Americans wise up.
It would have been a much shorter video about what WASN'T wrong with this chainsaw.
This man WILL NOT be deterred!
Determination Defined !
That was a brilliantly clear video. I've had a couple of saws of similar origin to this, had workshop broken into and all gear stolen, these saws kept me working till replaced Stihl. But when started to play up they were skipped. I think those who buy saws, should watch your video to appreciate the time and effort that goes into repairs. 👍
Fun Fact! The original video was over five and half hours long. Don't worry, we left all the good stuff, we just edited out "that goD#$$%# better F$#$^^ start this time!" out.
I have owned and maintained several of these chainsaws in sizes 45-58cc, and they have been stunningly good value. Most do no have a throttle lock, they start on closed throttle (ie hands off); and they don't have a purge bulb. From cold with GOOD fuel in the tank, pull it over slowly a couple of times THEN full choke and pull it until it pops off (max three pulls), then half or no choke, pull it again and it should idle quite smoothly, let it warm (to avoid cold seizure) and get cutting. Here is a demo of how easily they should start: th-cam.com/video/M4qmV9bgcvw/w-d-xo.html .
Hi James, saw looks like alot of other Chinese branded saws- I think consumers are better off to purchase a known brand than unknown Chinese brands..
How about if you could buy this saw ex factory at $32 to $50 each?
Sir, I must congratulate you on your resilience, your hard work and you dogged determination in getting this chainsaw sorted!!
I have had THREE of these Chinese chainsaw's--(under different names of course!!)--and, apart from regular maintenance, and using the PROPER oils and fuel/ mixes, I've have NEVER had a problem with them in wood cutting.....in EIGHT YEARS!
I have watched, over the years, Steves Small Engine Repairs, Chicanic, Donyboy, and 'Married with small engines' and MANY more....ALL praising the god who--(for them!!)--is Stihl, Husquavarna, Poulan, Mccullocch, Shindaiwa and the like.
I am a pensioner in the UK, and Cannot possibly Afford the likes of Stihl, Husky, Poulan, Maccullocch, nor a Shindaiwa, but
have to live within my means and with what I've got.....which are 3 chinese chainsaw's.
It may irk some of your viewers on here, but hey.....TOUGH !!
At least I' me still cutting at EIGHT YEARS PLUS.....with all my chinese stuff!
good discovery about the harbor freight compression tester. i get to tell a friend he threw away a perfectly good stihl ms 250 because he used that compresison tester to make his final decision on his saw he couldnt get running. i have an older craftsman compression tester and it give correct compression readings on small engines. i would have never guessed there would have been that much of a difference between harbor freight and good brand names but i guess you get what you pay for. im glad i adopted the mindset of buy once, cry once with tools and diagnostic gear about 15 yrs ago as its saved me money in the long run.
I am amazed by your paitienc. It is a new saw! Great video😊
Excellent sir…I also had a 2 stroke with an air leak . Replaced the seals and sealed the mower case with Honda bond. 30 year old mower runs like new now.
you have the patience of a saint!!!!. i just had a similar run with an old early 80's craftsman and i wanted to snap , and i only had to rebuild the old carb and tune!!.
Best part of this video is everything that could have gone wrong did, making it a VERY informative and interesting video! Learned a tone of things! Thank you, your work does not go unnoticed 🤜
Well that was all rather unexpected! What a simply wonderful piece of story telling and fault diagnosis. I simply do not know how you kept your cool. Thank you for this, it has made for one of my most enjoyable TH-cam experiences ever. 😀
Mr Genius. Excelente repair. I love to repair everything in my house. Thank
Top marks for patience and perseverance on this chainsaw that was almost certainly assembled on a Monday morning . When the clutch went AWOL across to the other side of the shop I'd have thrown the saw to join it ! 😅
Wow what a pain in the behind. Hats off to you for being so patient.
I have 3 one being a Jon Cutter 5800. I always start as per instructions. Choke on no throttle pull till it fires choke off still no throttle crank. My 5800 is a screamer.I have a 38 cc and a 71cc.they all run great. There. Really is no much to a chainsaw. Only problem I ever had on others is fuel line becoming brittle.
James, I normally would not have watched a video this long but the troubleshooting that you did was nothing short of amazing. It kept me on the edge of my seat. Never would have thought that there could be so many contributing factors to one problem. I'm glad I stumbled onto your channel. Can't wait to see next video.
You had the safety brake on since the beginning till you dismantled it! That was contributing to your initial problems.
brake turned on at 7:10 in the video
Thanks for the video James. I have one of those chain saws in the garage belonging to my son inlaw.The pull start main spring was broken. I replaced the whole assembly with a bit of tweaking got it to fit. Fortunately the spring broke before they got it to start as there was no oil in the fuel. I put the fuel in my 4stroke mower. works fine ,no smoke. I just have to get it started now. It use to run fine prior to the broken spring. Thanks again
Thank you for demonstrating the compression tester. I had a large engine tester from harbor freight and got same results as you. I had self proclaimed experts online ridicule me when i asked if i needed a small engine compression gauge. They all said it makes no difference and i just didnt know what i was doing. But i bought a small engine gauge anyway, and started getting accurate readings.
So yeah, you get what you pay for. I have a Homelite chain from the 70's ,my dad's old saw, I am 70 now. It was hard to start, so I found new old stock ignition parts, starts and runs great. This homelite saw along with a Stihl chainsaw cut countless trees down in the 80s & 90s. Pays to buy quality.
Great the way you stuck with it James, having the right tools for diagnoses is definitely worth the investment! Thanks.
Absolutely!