STIHL FS SERIES 4MIX TRIMMER / WEED EATER REPAIR / HOW TO CORRECTLY ADJUST THE VALVES

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5 июл 2024

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Комментарии : 78

@pollcrazy 3 года назад

You have to be careful with the 4 stroke as there is two top dead center, you want the one when you move the fly wheel a bit the valves do not move. Go check Steve’s small engine saloon.

@agaan1897 Год назад

you right!

@johnkosheluk1041 6 лет назад

I am a stihl certified tech you are 100% correct on how to do that allso be careful when you put the new gasket on the cylinder there are little guides the gasket goes around and if it has over 15% blow by to clean the carbon out on a br430 there is a little mark on the flywheel

@garyanello3881 3 года назад

Nicely done with good footage of keys points. Pace was perfect!!! Thanks again!!

@neilwilliams2409 2 года назад

Good tutorial video. 👌 I really liked at the start your emphasis on throwing the old gasket away immediately. 💯.

@motoman5023 6 лет назад

Awesome job explaining everything.

@THEMOWERMEDIC1 6 лет назад

Thank you for your support

@watermanone7567 6 лет назад

Very good video. Thanks

@brianquigley7336 3 года назад

You forgot to mention that you want it on TDC on the compression stroke. TDC occurs twice on a four stroke in one complete cycle.

@THEMOWERMEDIC1 3 года назад

I didn’t forget anything. When you line up the arrow like shown that is tdc on the Comp stroke. But thanks for the tip!

@rodneyallen2672 2 года назад

@@THEMOWERMEDIC1 maybe mine is different but on mine TDC is every other turn with the arrow lining up. its on intake with arrow lining up, the next time around its on trut TDC

@mattschmitt9924 Год назад

@@THEMOWERMEDIC1 when did you show to differentiate between the strokes? Just watched looking specifically for it.

@soggz4246 2 года назад

Thank you. Great video.

@Lovinflyindrones2022 3 года назад

Good video/info. Thanks Mowermedic 1

@evanchapmanfanman 3 года назад

I’ve got an older km110r and the last time I had the valve cover off it look extremely clean, I’ve always been very good about maintenance and it’s been a very dependable trimmer, it did seize a valve once but that was quick and easy to fix, I run 32:1 mix and I have no issues with carbon, I do run it wide open frequently.

@THEMOWERMEDIC1 3 года назад

Mix 50:1 and run full syn oil and the valves Wont seize

@evanchapmanfanman 3 года назад

@@THEMOWERMEDIC1 I did switch to syn oil a couple weeks ago, still 32:1 due to the fact that I run my machines wide open. Haven’t seized a valve ever since. I currently use hp ultra but will be switching to red armor soon

@mranhhoa1945 5 лет назад

Thanks for the info , is it the same for a poulan blower ?

@robertyearian227 2 года назад

Good job dude you have more patients with that stuff I have 0 patients

@joshuavanhoozer1518 3 года назад

Very useful info

@RoderickSpoke Год назад

Very useful thank you 😊

@robertrobinson1111 3 года назад

I thought there would have been more to it great video.

@thecowfy 2 года назад

OK, good info. I have that problem. What feeler? It will take weeks till I can get that order to me for the kit. For the mean time what feeler? You can tell me in metric or sae. I've got both.

@tallens5280 4 года назад

Under normal conditions (not making a vid), would you clean the rocker arms etc.? If so, what do you recommend for that?

@jonathanbenoit8828 3 года назад

Thanks 😊👍, I learned something new, this day, Iwas doing it wrong

@jefffaust89 3 года назад

The 100rx I use at work seems kinda low on power. Idle is constantly different some days slow some a bit faster can’t get it turned down low enough for the head to stop turning without it sounding like it wants to die. It is at least a 8yrs unit and did have a new carb out on in 2017 also tune up, and valves adjusted, but as I can recall it only ran really good and properly for maybe 2 or 3 months by the next year it was acting similar to how i mentioned in beginning.

@kingofthetrack Год назад

turning the fly wheel to TDC .You didn't mention the compression stroke where when turning the fly wheel both valves don't move

@IHcubcadet 6 лет назад

Great video. Would you recommend thees trimmers with the 4Mix engines vs there regular 2stroke ones like the FS94?

@nashguy207 6 лет назад

I have 2 FS94R and I have not been happy with them They have been in the shop in The first 2 years than any other Trimmer we have ever ran.

@opichocal 2 года назад

Best thing that happened to my 94 was when it got stolen. Only had it 3 weeks and I hated every minute. I keep fixing up my fs80 and wish they still made them

@Idahoprepper71 2 года назад

I have the km130 kombi. 6 years , zero problems!

@mattschmitt9924 Год назад

Old comment, but I have the 91r. Worst piece of Stihl equipment I've ever owned. It does work if you babysit it. Cannot recommend.

@nashguy207 6 лет назад

So do all the 4 mix's take the same valve adjustment kit?

@THEMOWERMEDIC1 3 года назад

Yes

@1d1hamby 6 лет назад

I've had issues with the screws on the bottom engine pan backing out. make sure you check them everytime you adjust the valves. Has anyone else had this issue?

@omarmontoya8885 2 года назад

I have a Stihl fs 91 r weedeater and gas I leaking at the muffler and leaks a little at the filter how can I fix it

@MrBest-mr2my 6 лет назад

Can you make more videos on trimmer repairs please

@Budro4764 6 лет назад

I will be doing some videos soon on the weed whackers..... I think I have a couple of videos on leaf blowers and weed eaters now, but I will get more in depth on some later..........

@user-jm5dn2nn6v Год назад

Help--My sf45 doesn't have a valve cover or valves as far as I can dee!!!!!

@garypitzer8729 2 года назад

I have A fs 135R. How often should these valves be checked? I wouldn't want to waste A gasket if they don't need adjusted.

@garypitzer8729 2 года назад

correction FS 130-R

@mattschmitt9924 Год назад

@@garypitzer8729 depending on how often you cut, I have to do mine at least twice a year. I cut 4 lawns.

@jefffaust89 3 года назад

By saying make sure to adjust top dead center on the compression stroke not the intake by that do you mean in other words if I wiggle the flywheel back and forth the valves shouldn’t move at all? Then it’s on compression stroke if they move up n down it on the intake? That’s how I adjust adjust but did have issue with it not running that much different afterwords so I think it was because of not changing out the 2 sealing gaskets. Either that or that didn’t need adjusting I don’t think they need to done that often and Stihl doesn’t make it clear what all contributes to valves being out of adjustment.

@mattschmitt9924 Год назад

With mine it will not run once warm if the valves get a couple thousandths out. Very frustrating when you're in the middle of a job.

@phillipsmith1847 2 года назад

Could you please tell me where the exhaust valve is located on a Stihl FS 45, or if it even has an exhaust valve and/or intake valve on this 2 stroke engine? It is terribly hard to pull the starter.

@Steven-jn2cw 25 дней назад

2 stroke engines don't normally have any valves.

@jimmydickson8854 Год назад

How often do you have to adjust the valves jimmy australia

@mattschmitt9924 Год назад

I have to adjust mine at least twice a season. I cut 4 lawns.

@jrsmowerrepairandlawncare4179 6 лет назад

Great video. I have a question. So I had recently changed a cylinder head on my john deere jx75 mower with a 6 hp kawasaki engine and I did adjust the valves but I'm still getting too much compression. What could be causing this?

@THEMOWERMEDIC1 6 лет назад

Compression release is Broken on the camshaft

@Budro4764 6 лет назад

I agree with MM1 ............ Why did you change your head ???? Bad valves ???? What gap did you set at ??? I see you are in the lawn care biz and you got some wrench's under your belt I assume......... Comp releases or a common failure on Briggs cams on the single's .... I haven't seen one in my shop on a Kawi 6 HP though... Most Kawi's we have down here are on EX MARK and the higher end Zero Turn mowers........ Here in South Louisiana we have mostly Briggs on push style mowers...... Kohler Dis Courages LOL are getting frequent in the shop now with all kinds of issues with the bolts loosening up and cracked blocks.... What is your Model number on your engine ?? FC 150V ??

@jrsmowerrepairandlawncare4179 6 лет назад

Boo LuQuette well I had gotten the mower for free but the carb bolt was broken when I got it. So to make it sound better and work better, I wanted to replace the head. I did gab the valves at .005 in as specified.

@jrsmowerrepairandlawncare4179 6 лет назад

Boo LuQuette also the model number is fc150v hs00

@Budro4764 6 лет назад

Yea 5 and 5 is good... Can you get it past the compression stroke and then start it easy ??

@omarmares3722 4 года назад

I adjusted the valves but just a few seconds after they’ll get loose or too tight. What can i do?

@THEMOWERMEDIC1 4 года назад

Adjusted the valves on what?

@omarmares3722 4 года назад

THEMOWERMEDIC1 sthil weed eater fs 130r

@omarmares3722 4 года назад

THEMOWERMEDIC1 i did what you did on the video but just 10 seconds after powers up it dies and the valves are too tight sometimes too loose again

@THEMOWERMEDIC1 4 года назад

Camshaft pin worn out most likely but most Of the time it wallows out the engine case

@onyxes49553 4 года назад

Make sure it’s TDC on the compression stroke, not the intake.

@yardlimit8695 2 года назад

WITH ALL THE GOOD PRECISE THOROUGH INFO........YOU NEVER SAID WHAT SIZE THE THICKNESS GAGE IS,,,,,,,,,,,,,WHAT IS IT IN METRIC OR AMERICAN........THANKS..........