Why are these STIHL BR 800’s hard to start? Let’s Crack The Code
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- Опубликовано: 16 мар 2024
- Taryl's gonna give this thing a complete teardown and perform an autopsy on why this STIHL backpack blower is hard to start. It was always hard to start since it was BRAND NEW and even STIHL won't make it right. Don't worry, the master's gotcha covered. We don't talk about repairs, we get 'r done! Now There's Your Dinner!!
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I remember when nearly all landscapers used Stihl. They started becoming unreliable and now I see them using Echo. Taryl did a good job fixing this blower.
Stihl has become a low quality product. I have a Stihl chainsaw and a string trimmer and both are junk.
With the economy nowadays, people don't want to spend twice as much. They're both good quality, but who wants to be wasteful on stihl for the name. Not me.
Agreed , I have an echo weed wacker very happy going on 10 yrs now. I have a Huskavarna chainsaw from 20+ and also an excellent saw.
I got a br800 and echo 9010, the br800 is way more agile/maneuvarble in tight spaces like behind shrubs, etc and is more quite. The 9010 definitely punched through the big piles better though, but loud as anything
@M.TTT. Noise is very upsetting to people so I would try to avoid using the Echo early and late in the day.
Every piece of Stihl equipment I owned was hard to start when cold. I switched to Echo, starts right up every time, no hassle. Plus I don't have to get ripped off from a Stihl dealer buying overpriced parts.
Most folks are using starter fluid or dibble gas in intake behind air filter
They hate the 800 and are switching to echo 😢😢😢
Sound like Stilch isn't pressure testing them seals during quality control time.
I've had an 034 since 92, been a great saw never had a problem.
Wow your patience is amazing!!! You are a mechanical genius. They way you diagnose equipment is absolutely amazing. The mechanics when he took it back couldn't figure it out and you did, awesome just awesome!!!! Great video Mr Dayctal
its likely the techs (if certified) knew exactly the causes and flagged it. back packs are now to much work for the money. and telling the cust their better off writing the unit off. either way the cust is going to be pissed off and take their money else ware.
So after watching I did get a few good take aways:
1- 50PSI is not too low for the machine to start.
2- Using a tap holder to lap the valves is so simple that its genius!
3-The guy that commented that this "big" blower is putting tons of carbon in the atmosphere is watching the wrong channel.
4- Junior is a good drummer 🎉
5-And lastly, Taryl should watch videos from a guy on RUclips called "Taryl Fixes All". More than once have I have heard and seen Taryl say we need 3 things to make an engine run. Fuel, Spark, and Com-presh-yee-own. He also says the timing of the spark is important.
Its always a good day when you learn something. Thanks Taryl. 👍 Zombie Dave
Well, actually, the "big blower" puts quite a bit of carbon into the atmosphere, especially carbon dioxide, carbon monoxide and other carbon-based molecules due to the fuel mix. If you bought a 4 stroke blower with an oil sump, not as much of a problem. That being said, it's not tons, especially if it's only used for about an hour each week. Over the lifetime of the machine? Sure, maybe a ton or two but that's not a big problem. The biggest polluters overal is industry, so think of the companies that supply the fuel for these machines, coal-fired power plants (about 40% or 2/5 of electrical generation on the planet still relies on coal power plants) and some factories that makes automotive travel and small engines seem small in comparison. The largest pollution that's noticeable from Stihl blowers is the noise pollution.
Engine compression on most engines with a decompression system pulling the cord typically is around 60 PSI. That's something I learned from James Condon (@jcondon1). I also watched a similar video about these engines years ago from @Donyboy73. I think he had a similar opinion to these units as well but kept that fairly quiet. His videos are basically straight to the point and typically don't exceed 20 minutes. Steve's small engine saloon is similar to Dony in this regard but with some of the gimmicky qualities, not as whimsically weird as Taryl, the competent version of Red Green.
@@WJCTechyman I never saw an episode of Red Green. 🤔
The 50psi is because of decompression@@ZombieDaveAZ
@@mikepink1337 Thanks Mike. I knew that before watching. Taryl stated in the beginning of the video that the 50 PSI should have been 100 PSI. And because I'm a little slow on the uptake I am guilty of dumping gas down the cylinder and just trying to get it to cough or run for a second or two. I confirm spark,fuel,and compression at one fell swoop. So in the video Taryl chased the low compression to the point of a valve job when it may or may not have been needed. So my comment was a round about way of saying that's 1 hell of a compression release.. lol Have a good day Mike
👍
@@ZombieDaveAZ if you like Duct Tape, you’ll love Red Green!
31:58 “You’re looking at a psychopath”. LOLOLOL! Got me laughing hard on THAT one, Taryl! 🙏👍
Wow, my Stilch blower has been GOLDEN!!!! No problems at all, except, well I had to do a valve job. Then had to put in new rings. Later on the spark plug blew out the threads so I put in a helicoil and fixed that. Oh, and the crankshaft ball bearings went out. But really nothing else. Except the carburtraitor snapped off, had to replace that. But that's about it. Oh, then the flywheel key twisted off like the one you are working on here. Had to replace the flywheel. That's it. It's been GOLDEN. Oh, I forgot the throttle cable broke and had to put in a new one. But that's all. Except one day the gas tank cracked and leaked all over, and had to replace the tank, but that's it. It's three years old, that ain't bad for a machine that's three years old. Yep, it's GOLDEN !!!!!!
2 stroke 😎
Haha you had me reading that whole thing
😂🤣
This is all good to know if I find a new looking BR 800 on sale for less than $100. Lap valves, replace spark plug threads, remove flywheel, pin in key way and make witness mark on crank, red locktite flywheel. Keep an eye on gasoline tank, maybe bound reinforcement to some areas.
Run a lower mix oil ratio than Stihl recommends. I use Stihl mix oil at 2/3 gallon rather than a gallon with REC 90 gasoline and a double dose of Seafome. I have to drive about 20 miles to a REC 90 station. Its worth it. Instead of a 50:1 ratio that gives 33.3:1 mix oil ratio. I don't get any smoke and I'm using it in a 1968 Sears Allen Bradly chainsaw. The Seafome makes the chainsaw sound deeper. Seafood is not a gasoline preservative. It removes carbon, encourages cleaning and is recommended for 2-cycle engines.
With REC 90 I'm on my second summer old fuel and the mower starts on the first try. It is likely ethanol fuel in an engine dependent on mix oil for its lubrication that is killing the engine bearings. Usually a 2-cycle kills its cylinder piston contact surface before real damage to the main bearings. REC 90 is made for 2-cycle marine engines being stored through the winter. It has no ethanol and is intended for long term storage so it might have some other attributes.
Shilh throttle cable and kill switch are weak design areas in older Stihl string trimmers. The leaf blowers seem to follow the string trimmers more than the chainsaws. The kill switch isn't really needed because it almost as easy to just choke out the engine to kill it.
If buying new, Echo makes the most powerful string brush trimmer and it's light weight high reving 2-cycle. Echo's throttle cable and mechanisms are smooth and robust. Echo has a reputation for overheating in hot humid weather that I have experienced and will not start until a 20 minute wait in a cool spot. Stihl is harder to start, but are strongly heat tolerant. This is for older stuff in the 1990s.
My Stihl FS66 string trimmer would get slow after getting hot. I think that is because the seals are not up to the task. Other trimmers use larger diameter seals. They seem to need to be Stihl made seals because even though a standard seal, non Stihl seals seem to leak and Stihl doesn't make their own seals for it anymore with NOS going for over $100 a set! The standard seals of this size go for $10. I'm going to try another brand of seals.
Good job Taryl.
The dealer that looked at it, didn't want to see what was really wrong with it since it needed actual mechanical repair.
There's your dinner!
That brother of yours is a genius.
That was a great video which showed your skills as a great mechanic and diagnostician.
Looks like a nightmare 😂
Learned a lot by watching this.
Use a sharpie pin on the valve face and turn it again and then you can see if it is seated all around.
Echo makes some fine equipment...I've used it for many years. Still have one of the old metal-cased chainsaws that nobody ever gets rid of, just keep repairing them.
Good fix Taryl, you are a jet-pack scientist to repair that 4-mix!!
When I was a landscaper we used all Stihl equipment and seen a decline in the way they held up compared to before. And this was awhile back. Most landscapers were switching to Echo equipment back then.
Nice clean bench Taryl. Don’t you love how it takes all day to clean it off and just an hour or two to get full again? Love the show. Enjoying the skits channel too.
WOW! That was truly an outstanding episode of.....Taryl Fixes ALL
I am a certified Stihl Tech, best way to lap the exhaust valve is to use a small piece of gas hose and after putting lapping compound on the exhaust valve use the piece of gas line and put on the top of the valve that sticks out of the top of the engine then use a nail with the top grounded off and put in in a cordless drill and stick the other end of the gas hose on the end of the nail in your drill and gently pull on it to lap the valve. Works real good, then use brake clean to spray off the residue compound.
Thats what happens when you clean off your work bench. You can't find anything.
I have to have a specific place I put things and always put the things back where they go when cleaning up.
If I don't I'll spend half an hour wandering around looking for things, and yes, I keep going back to the same places I've already been and look again. I also find things when I'm looking for something else and think, 'My goodness, I never would have looked there to find that thing when I really need it in the future. I go ahead and put the thing in a much smarter logical place because I know I'm going to be needing it at some point.
I hate when that happens. 🤦♂️
BLAME It On SLIPPERS👍🤣
I’m with you, Echo 2 stroke over Stihl 4 mix. I have the identical blower with a no start condition that just came in yesterday. Gonna check that flywheel key first. Thanks Taryl!
Chickanic down in Arkansas has been comparing the Stihl BR's to the Echo PB's on her RUclips channel for a year or so, and she's come to the same conclusion as Taryl about the BR's. I've got an older Husqy backpack that gets homeowner use, and gotta say that I'm really happy with it. Clogged the rings once using bad oil, re-ringed her, and she still runs like a champ.
I just watched a master in his field! Thank you for sharing your talent.
Another fine job by the master 🙏
If you can't see where the valve is seated use a dab of Prussian blue on the valve and move it around on the seat and it'll leave a good impression. That's a great repair hack so thanks to Faryl for the info. Please don't shut that door so we can hear that lovely sound of the leave blower. I love that sound at 06:00 when the neighbor goes out there and "gets it on"-NOT!
Great job on that repair can’t believe the dealer it went to could not figure it out and that sounds odd they probably just didn’t want to work on it…👍👍
I was going to upgrade my gas blower this year, but then in Portland Oregon they just banned Gas Blowers. Weird, I still see even the city still use them. But ban them for residential users.
Go to work at the city, then have them help you get one. If you're good enough, they'll probably help you out. I did that once here, lol. If it has the city's metal tag, they can't keep you from owning it if you got it legally. 😮
I have a Stihl ms170 with the cast-in flywheel key. It sheared off after about two years and 40 hours use. Most frustrating fix I ever had. Like the blower it would crank or not, maybe run great for 5 minutes then quit and not crank back. 30 pulls later may crank/run like new for a few more minutes. Had fuel and fire and not even hit on starting fluid. Stuck it under the work bench and just bought and used another saw till I had patience to not throw it away and tear it apart. Finally found the sheared cast in flywheel key that had the timing all off. Bought a $9 flywheel off ebay and it has ran fine for the past four years. That cast in key was a bad idea in my opinion, a designed failure point.
I wish I had the patience like Taryl...I like to learn but give up to much...I really do try...I learn so much from him....
Taryl, back in the day of Kart racing, I never ran a key. Simply put a tiny film of valve grinding compound on the inside taper of the flywheel, put it in time and torque to spec.. Never had one slip, turned as much as 7500 rpm on a Briggs and Scrap'em 5 HP.
Interesting
I find it hard to believe a B&S engine could withstand 7500rpm.
@@jimjones1678 look up Dyno cams 117 grind flathead cam. The target RPM is 9800.....
@@jimjones1678Search for "Dyno Cams 117 grind flathead" The target RPM is 9600...
RIPPER🤩👍
I have a brush cutter that was hard to start when hot, I thought it was the carb but it was the gap between the coil pick ups and the magnets was too great.
When it was hot the gap widened and spark was weak.
Did the business card fix and wala it works great.
love the show! thanks!
Had the same problem. I used a round file and notched the flywheel to accept a piece of drill stock. Haven’t had any problems since.
Good idea!
I own a 25 year old Husqvarna back pack blower. It always was a cold one starting in the Winter.
Always starts fine in the warmer weather. It is still running and all I have ever done is change plug, fuel filter, fuel lines, and some wiring repairs. Good piece of equipment.
31:00. Great idea to use a tap wrench to lap valves from the other side! 👍
Glad I went with the 600! Never failed to start cold after 2nd pull!
What a valuable video!
Because I have the 800c.
Now I know all about it. Thank you, Taryl
nice job terral
When I was looking at a new trimmer I seen those 4-mix things. Decided piss on that, if I'm going to have to worry about valves and still mix fuel they could keep it.
Hey Taryl this is an awesome breakdown tutorial. I moved away from a lot of 2 cycle handheld repairs and limit what I do. The flywheel on these units should be redesigned.
Excellent video
Its obvioua that they are designing them to fail, with all the materials science they cant produce a reliable product? Ive noticed the brands bosch, stihl and bmw ,merch have flashy products that just do not last. It all started with the mobius cartel in the 20s and 30s where light globes were made to fail.such a waste of resources and energy,there is nothing wrong with making business, but engineered obsolescence is undemocratic .
That was very informative. I Tried to fix my neighbors. I totally failed. I think I know why now. If he still has it maybe I'll try again.
I bought a parts br800 that ended up having a loose flywheel with a sheared key, I just cut a slot in the flywheel with a thin metal cutting saw blade and created a key from metal stock, and off it goes!!
I have amazing respect for your knowledge, experience, skill, and humor. Have a Hamm's or two! Thanks, Taryl.
Check the coil gap, may need to reset coil gap!
Old equipment is better sometimes. Great video 💯💯
Junior and I have that one thing in common, drums are a big part of my life I started when I was 16 and kept it up ever since I'm 26 now, it's a great hobby,❤
nice one , this one had a curve ball repair , Very well done on the end result, love these fault findings
I like to do a leakdown test before I tare engines down. Because if you miss 1 simple thing before the tare down the you run into a fog when nothing seems wrong internally.
Yep.
Good learning curve,This small stuff can be a real challenge,great job
Good work Taryl!
i love this show i hope it keeps going after
You go boy! Nice repair work and teardown info.
I don't work on ANY small engines at all but it is nice that there are people out there who know things. Things that by all rights should be _in the service manuals_ but for some reason are not. You ever said it yourself that these problems are very common with these so it is would only make it right if they put these in there so we can get them working. Instead that customer you just helped was probably ready to throw the thing away! I know I probably would have! I would have washed my hands of that thing once and for all throwing it out!
I learned something new today the 4mix are all p.o.f I will stick with my old BR400 because it was made when Stihl and Echo were equal in quality. Good video Taryl.
Another job well hammered, Brill.
Thank you for showing all of the neat techniques you found in repairing this machine. A lot of the newer equipment is junk when I purchase it. I have a Craftsman edger that is almost thirty years old. It runs good. I have to lap and adjust the valves once.
Bought a new McLane edger July of 1980. Briggs engine, still runs like new, 44 years old. Still has the original spark plug. Just use straight 30W oil, change every year, keep the air filter clean, and they'll run forever. Have replaced the blade probably 15 or 20 times, but that's it.
As a itinerate lifelong tinkerer/mechanic I really enjoy your videos. I’m sure you probably already know this but I’ll mention this anyway- I saw on your Stihl blower repair your dewalt 18vt nicad were dying I had the same problem and dewalt then came out with 20vt lithium battery tools. I went on Amazon and found a lithium battery that fits the 18vt dewalt tools and dewalt makes an adapter to fit their 20vt lithium battery in their 18vt tools. Great video on the Stihl blower… wanna buy a couple Stihl tools of destruction?
Years ago my buddy bought a Stihl chainsaw. We went to the Adirondacks to his camp to cut some small trees . I brought my 2 year old Jonsered saw. By the time he got his Stihl started(and was down to his t-shirt(Winter)), I had all the trees down. My saw starts on the 2nd pull every time. It is still running like a top after 35 years of usage !!
Great job Taryl!
Wow, loose flywheel and bad crank seals and questionable ex. Valve!!!!
Thank you for sharing👍
Thank you for helping us
The Honda you are referencing is the GCV170 pushrod engine. The other one listed in the recall was the GCV200, differentiating it from the GCV160 and GCV190 with the overhead cam and timing belt. The Hondas I prefer are the GX(V) series but I take what I can get and one of my mowers is an HRX217HYC with the GCV190. I was able to get it because it was a good price for 10 years old, only about CA$100.
I wouldn't choose Stihl, perfectly happy with my Echo and Honda stuff. That said, this year I am going to try Echo's battery stuff as well, mostly the handheld stuff and particularly the PAS-2600 power head.
I own an Echo PB 9010. A beast of a blower! My one complaint is the wimpy detent on the cruise control. You slide the lever from full throttle to idle and you overshoot idle turning the engine off. Take the unit off your back and restart. Pain in the arse! I found that holding the throttle while moving the lever back helps avoid the overshoot, but, I now avoid the cruise control.
I have 2 of the exact same blowers...Possibly the strongest blower on the market today. Our blowers start fine on usually the third pull. We use Stihl HP Ultra premix and run the machines hard..these things don't want to be at half throttle. JMHO
Great information. Great video. Thanks
Great video-True knowledge-Thanks
Fantastic job 🎉 You are amazing Tareyl . Thank you for what you do .
Thanks for sharing information and advice ❤
I had a chain saw that had to have the crankshaft seals replaced. More work than I wanted, but the saw ran great.
Good stuff Taryl. Love the channel.
Excellent video!
Educational and entertaining.
Keep'em coming!
That was a very good investigation video, you wouldn’t think 4 cycle would have the pressure issue of the 2 cycle, like the old saying says you learn something new everyday! Thanks for going over this piece of equipment great video👍
Excellent episode, Taryl!! Thanks so much !!!!
Good Job! Runs like brand new. There is your dinner!! Lol
Nice bit of investigative work.
You are good teacher. I have learned a lot from you also entertaining. Keep up the good work you do.👍
Great video Taryl. I noticed your work bench was cleaned right away. Your entire shop is looking really good.
Excellent work.regards from Australia
Brilliant! Thanks!
Thanks for all that great information. Koodos to you Taryl..
Thank you Taryl.
Thank you!
Great video Taryl. I have a Makita 4-Stroke no mix Backpack Blower Love it, works great!
Great job Taryl.
I still have a stihl feeler guage for adjusting the valve clearance. seems like the clearance is or was .002. not .010. I remember the clearance was fairly critical
Nice troubleshooting ❤
And there's your dinner 🍽️ lol
Me and my wife love taryl
Shes the one who showed me his vidoes first lol He reminds me alot of myself. Keep the videos coming. You are all we watch so post on lol much Love from South Carolina!
31:03 I laughed so hard at this point. I have a General Tools ratcheting tap handle with the center lock. I wonder how many of my motors I can lap valves like this with it? Great tip Taryl.
Eres el mejor de youtube, gracias Taryl y equipo
Thanks a lot for this video, hope i don,t have to work on one, but will know how now.
Nice job
You are the MAN Taryl!
Great job and again, thanks for walking us through the diagnostics. It was easy for the manufacturer or a basic mechanic to say that. You are on another level. Love watching and learning with your videos.
I just took apart a br600 that ate a exhaust valve. Broke at the stem. Good timing on the video. Thanks
Nice work
Did you put locktight on the flywheel bolt....did didn't see.. just checking cause it will work loose I believe..thanks
Nice diagnosis! Nothing is easy
I bought one of those and I was so pissed off at it because it was the same type of thing I had going on it would not start and I finally went back to a smaller blower because of this problem. Honestly the small one works just fine for me.
Out value the machine fixing those,thumbs up great video
Unbelievable. Crazy skills
As far as your DeWalt battery, just go in there and bend the tabs a little bit and maybe put some Dox contact cleaner
some Dy-kem or permanent marker on the face of the valve would let you see the contact patch a little better.