Hi there, can i please take a moment and say massive thanks for your videos, so much information and knowledge there which is really really helpful for the people who want to fix their equipment. You and your partner are geniun. Not everyone share their knowledge in this world. Please keep doing these videos especially around chainsaws as that is where my key interest is. Fablous. Thanks
As a retired small engine mechanic for more than thirty years you are showing me things on these newer saw thanks I still work on friends and family stuff 🇺🇸🇺🇸🇺🇸🇺🇸
Well hello again. It's your favorite xlogger sounding off from the southern piedmont region of Virginia. You know, I used to think that I knew it all about small 2 stroke engines, but every time I watch one of your videos, I learn a thing or three. You are muchly appreciated.
Excellent video. Stihl could use this in their training program. With the stupid push to battery powered equipment I hope it does not hurt your business.
Thank you for these videos. I’m a 33 year member of the Laborers Union in Boston MA. These videos have helped me solve many simple fixes on our cut off and chainsaws
I have recently retired from my job as an emergency dispatcher. I have found a new hobby in trying to fix chain saws. I still have very little experience but I think I have found the best teacher here. Your explanations are very clear and easy to understand. So tons of greetings from Finland. I would say the most common chain saws here are Stihl and Husqvarna/Jonsered. Excuse me for my bad English. Once again. You are a great teacher.
Just found your channel. I really appreciate the step by step you do. I found a 211 at a yard sale for 20$. Couldn't resist, the people selling it knew nothing about it. It's now inline behind about 6 different Huskies, a couple of 031s, a 041, 024, 028, 056........lol.
Great video...I have to say that I really don't like the throw away mind set of people today...Motorized tools and vehicles need maintenance, buying new does not fix the lazy owner problem. It just makes for more things being thrown away that can be fixed. The truth is maintenance cost money and that is the cost of owning tools that get used.
I totally agree with you on throw away mindset. I have an MS170 and I've spent the price of saw in repair/maintenance, not all in one shot. I'm hesitant to bring it to a shop and try myself with the help of videos like this. I managed so far, but I'm an IT guy, better at Googling for solutions. Bought an MS261 recently because I need to cut more wood and more frequently. Will still try to keep the MS170 going.
nice idea using the dropper for the gas check. Thinking that Stihl will phase out the cheaper gas saws since cheap chainsaws from Amazon can be bought or an electric saw is more suitable for homeowner so they do not ruin the saw by neglecting proper gas maintenance
Have you worked on any Stihl FS94R trimmers with vapor lock problems? I had 2 of those, & they’d get hard to start every summer when it got above 85-90 degrees. The only way I’d find to temporarily fix it was to crack the gas cap & release the pressure from inside the fuel tank. Thank you for your straightforward videos.
I like the method used to diagnose the issue, by excluding all possibilities, perfect, and well explained, and the result is really like expected. Bravo !
If you ever get MS311 I'd love to see you working on it. Just to see possible issues. I have mine for 14 months and absolutely no issues and I love it!!
Thank you so much for taking the time to go through all the air leak testing. 😊 When you talked about time that the shop takes to get into these chain saws, that is why on my (MS-291) they put a label on there bench of as is sales product out in lobby of JD tractor sales business. Thay priced my MS-291 at $420 sold as is. The saw was damaged on handle bar behind the black hold down safety. Just cracked. ( I taped it up with Gorilla Tape) The sales guy at counter told me exactly what you said. There techs time to replace handle cover was not worth it, they could sell it as is. It was a new saw. I have never had a issue cutting with her. 😊 She cuts like a raped Ape 😊 compared to my (Sears) saw. I bought the sears because I liked the priming bulb, and the Price. But boy the Stihl cut so much faster and better for personal usage cutting up round stock on branches especially Harder wood. I have a tone of big branches, that took no amount of time with Stihl, 😊 the Seare saw was slowsr cutting. Just harder on my old back.😊😊 I wished lived closer to you, love the COIL test with feeler gage tool.
Hi from Ireland. Great Knowledge, clear Instruction videos. 😊. After watching your videos , I am much more comfortabe doing Chainsaw, maintence now. Its satisfying to be able to fix things yourself.
Have an 025 with a red selector lever in the garage waiting for a new AM piston and cylinder. Enjoying the 2 stroke videos! Should be string trimmer season soon.
Excellent! Truly Excellent tutorial. Camera work is clear, in focus with really good closeups. You delivered your content without any extraneous blather and was very complete and to the point. Though I think of myself as a pretty good home-owner mechanic and download OEM service and parts manuals for all the equipment I own and refer to them before starting a job. However, you showed me a more precise way to set coil gap and a procedure to pressure check the needle and seat. I have a Stihl MS210 "hurricane saw" (I live in Florida) that like a fire extinguisher, hope never to have to use. Right now I can't tell if the saw has a kick-back problem when pull starting or if I am just too old (81).
Thanks for your great training video. Sure helps me understand chainsaws. No matter what brand, I suppose. High test fuel supposedly has no ethanol in it. ? Should we be using this in our saws. ? Thanks a bunch. 👍🏻👍🏻👋👋
Great content! Just found your channel. Keep up the great work. Its not lost on me how much work it is to record this stuff while you're doing it.... not to mention all the editing in post. Is there a manual or catalogue for all the OEM tooling you use? Those T Handles you have for the T27 and 8mm nut look super nifty. I'm wondering if my local Stihl dealers have a stash of these somewhere in the back.
This was very thorough video. You may have solved my same issue. I had to rebuild the cylinder etc and ordered new carb that didn’t fit the carb cover. So if I can find the carb gasket kit that may be the exact issue fix that is needed. I’m in Italy and they don’t use ethanol fuels, but the age and old gas may have added to the deterioration of the gaskets. 100% impressed with your testing and results. Grazie Mille! Thank You!
really enjoying seeing your skilled repairs. my Stihl dealer recommended ONLY using Sihl Motomix premix fuel. she said, most saw issues are caused by customers fuel mix and ethanol. was that good advice?
Muy interesante el video y las pruebas que haces para ver las fugas de la maquina. Y sobre todo tu manera de trabajar tranquila y pausada explicando todo bien. Felicitaciones.
great video content on diagnosing 2 stroke engines. I've worked on my own stuff before, didn't realize how important the pressure and vacuum test to crankcases and fuel system are. I need go get my saw out the shed and do some exploring.
Sounds beautiful, great to save from the scrap heap.
7 หลายเดือนก่อน
Great as always, didn't hear if you put a new spark screen that was missing.??? I assume you did. I'll redo the video as I may have missed that part. Thanks so much.
I recently discovered your channel and love the way you diagnose and explain each step of your repair. Do you have a tools list on Amazon like many do on TH-cam?
You need a new pointer finger, eh? Does Stihl not recommend a pop-off test on the needle/seat? Good to look at the mixture screws taper area for damage caused by bottoming out the needle. Never did like a saw with one bar nut, but I do have a couple electric like that. Good for around the house, start every time. 😁
Thanks for this video It's excellent Very detailed but easy to follow and understand I really enjoy all your videos I'll look forward to the next one Thank you
Great video, thanks for posting! Question: does a MS211 have an impulse fuel line? My saw is not getting fuel to the cylinder but I'm getting fuel to the carb. Has me puzzled...
Better work on the 261 next unless you ate your Wheaties,lol! I actually thought that the needle and seat would be leaking because of the flooded condition and the discoloration on the air filter.
I always dump the fuel from my saw tanks after cutting wood. I'm cutting 8-10 cord a year. My 031-041's have never had fuel problems for starting. I use Sheets non ethanol 90 octane fuel also mixed w/ Stihl synthetic . You take care of your saw, the saw will take care of you ! Stay away from store bought canned fuel.
I am new to chainsaws and I use my saws only a few times a year. But I've been tought to do the same. Take old homemixed twostroke fuel out and fill it up with aspen twostroke. It has a 5year shelflife and is safe for long storage in your engine. After emptying I just run the saw on aspen for maybe a minute in idle and done. Set it aside for months and they allways start up smoothly
My local saw shop sells ethanol-free gasoline by the gallon and will add 2-cycle oil per my specifications. At the end of my cutting season (October) i drain the fuel from my weed eater, chainsaw and other gas powered tools and then run them until the run out of gas.
I fully agree to find the actual issue before adjusting the carb., however I see no reason to not at least check the settings, in case the owner tried to adjust for the issues. If you know the adj. were not changed from when working, then I would leave them alone till finding the dirt(I imagine); still watching.
Fantastic videos, well-explained and very interesting how you work thru all possible issues.... am really impressed how good you are as repairer...... keep up the good work you do..... regards from Sweden 👍👍👍
Looks like a brand new saw. Still under warranty? I have purchased 3 stihl machines, and in every case, they doubled the warranty if I bought an 8 pack of stihl premix oil.
I have the same problem with my Stihl gas string trimmer. Thanks for your very informative video!!! Ill probably just buy a new carb. Out of curiosity, where is your shop at? Im from BC.
Another enjoyable, informative video. Question..I notice you put the chain brake on, every time before attempting to start a saw. Is this a Stihl safety protocol? Maybe just me and my woodcutting roughnecks have been overlooking this safety feature when starting, thinking this was just a kickback safety feature. Your take?
I do it as a safety precaution. It’s how I was trained. Some people will agree, some will disagree. An old guy once told me “the chain is always out to get you”.
The 211 has a terrible reputation here in Australia, restart and running issues being the biggest problems. I have one at home with a bent connecting rod, I am still baffled how you bend a rod in 35cc chainsaw.
Great question! So, sometimes crank seals will leak under vac but not under pressure. And I have seen many times where an intake boot will leak under pressure , but not vacuum. The Stihl service manual states both a vacuum test and pressure test must be done , vacuum always first.
@@marriedwithsmallengines thank you. Where in ontario is your dealership? I'm located in peterborough and always looking for good places to take my stihl equipment.
My favourite Stihl mechanic is back ❤
I agree she knows what she’s doing and is very good at it 😊❤
Hi there, can i please take a moment and say massive thanks for your videos, so much information and knowledge there which is really really helpful for the people who want to fix their equipment. You and your partner are geniun. Not everyone share their knowledge in this world. Please keep doing these videos especially around chainsaws as that is where my key interest is. Fablous. Thanks
There is nobody on youtube who does this better than this lady.
Gosh! Thank you!
As a retired small engine mechanic for more than thirty years you are showing me things on these newer saw thanks I still work on friends and family stuff 🇺🇸🇺🇸🇺🇸🇺🇸
Well hello again. It's your favorite xlogger sounding off from the southern piedmont region of Virginia. You know, I used to think that I knew it all about small 2 stroke engines, but every time I watch one of your videos, I learn a thing or three. You are muchly appreciated.
31:02 Love the Kitty♥ Kitty was just verifying your carb diagnosis😁😁😁
You explane it so clearly super 👍👍
Also great camerawork with the closeup overhead view!!
Thanks!
Excellent video. Stihl could use this in their training program. With the stupid push to battery powered equipment I hope it does not hurt your business.
You have a BEAUTIFUL helper in your shop... So cute!!
Hi and Gday from sunny Queensland Australia , nice to see the lady presenter back on deck again , thank you ,cheers
Wish our chainsaw mechanics were as thorough as you..
Now I understand how important vacuum- and pressure testing is. Excellent work.
Hello from Europe.
Thank you very much!
sounds so crisp...great video....looking forward to the next video...your videos are so addictive
Thanks so much!
Thank you for these videos. I’m a 33 year member of the Laborers Union in Boston MA. These videos have helped me solve many simple fixes on our cut off and chainsaws
Thank you! I’m so glad you enjoy them!
You are doing something right. I got three national advertisers on this one program
Wow, really!
I have recently retired from my job as an emergency dispatcher. I have found a new hobby in trying to fix chain saws. I still have very little experience but I think I have found the best teacher here. Your explanations are very clear and easy to understand. So tons of greetings from Finland. I would say the most common chain saws here are Stihl and Husqvarna/Jonsered. Excuse me for my bad English. Once again. You are a great teacher.
I've never seen better videos on fixing saws.
I've learned a lot by watching all these saw videos
Very good 🙂
Love the color of the sunrise there young lady 💐🌹
Good morning from the state of Louisiana! Im looking forward to our sunrise in the beautiful Feliciana parishes.
Beautiful Canadian Sunrise 😀 Going Too Work Myself Will Have to Finish Watching When I Get Home 👍🏼👍🏼👍🏼
Another terrific tutorial on chainsaw diagnostic methods. ❤
Glad you liked it!
These are amazing videos! Thanks for sharing with us.
Those snap type fuel caps had a habit of leaking. Supposedly, the black stripe on the cap indicates that it is the newer style, to prevent leaking.
One of the best breakdown videos on saws I have seen. Thank you
Glad you enjoyed it!
Just found your channel. I really appreciate the step by step you do. I found a 211 at a yard sale for 20$. Couldn't resist, the people selling it knew nothing about it. It's now inline behind about 6 different Huskies, a couple of 031s, a 041, 024, 028, 056........lol.
Fill the fuel system with 2 cycle oil when it is stored for a long time. You explain things well and clearly.
Great video...I have to say that I really don't like the throw away mind set of people today...Motorized tools and vehicles need maintenance, buying new does not fix the lazy owner problem. It just makes for more things being thrown away that can be fixed. The truth is maintenance cost money and that is the cost of owning tools that get used.
I totally agree with you on throw away mindset. I have an MS170 and I've spent the price of saw in repair/maintenance, not all in one shot. I'm hesitant to bring it to a shop and try myself with the help of videos like this. I managed so far, but I'm an IT guy, better at Googling for solutions.
Bought an MS261 recently because I need to cut more wood and more frequently. Will still try to keep the MS170 going.
nice idea using the dropper for the gas check. Thinking that Stihl will phase out the cheaper gas saws since cheap chainsaws from Amazon can be bought or an electric saw is more suitable for homeowner so they do not ruin the saw by neglecting proper gas maintenance
Have you worked on any Stihl FS94R trimmers with vapor lock problems? I had 2 of those, & they’d get hard to start every summer when it got above 85-90 degrees. The only way I’d find to temporarily fix it was to crack the gas cap & release the pressure from inside the fuel tank. Thank you for your straightforward videos.
I like the method used to diagnose the issue, by excluding all possibilities, perfect, and well explained, and the result is really like expected. Bravo !
Lady you are very good, enjoy your videos.
An absolute master at her craft! One tiny nit is I wish she would wear hearing protection...the cumulative effect is real.
Thanks once more. Even I prefer the professional saw videos I watch all of your videos bc they are so nicely done. Love from Germany, Alex.
Love the chainsaw repair videos Erica! Also love the way you folks up in Canada pronounce words like "out, about, shout, doubt, 😁🥰🥰🥰
Interesting that her husband says solder like we say in USA: sah-der. But Paul Carlson (Mr. Carlson's Lab) in Canada says: soul-der.
You rock my dear. As a female chainsaw carver with lots of saws you showed me a few things. Wished you were close to me
Thank you for the great videos.
MS261 Next 😀👍🏼
Love your content! Thanks as always!
If you ever get MS311 I'd love to see you working on it. Just to see possible issues. I have mine for 14 months and absolutely no issues and I love it!!
When I get one in I will do a video on it!
@@marriedwithsmallengines So cool! Love your channel!
Very helpful videos and I enjoy the subtle humor, thanks!
Thank you so much for taking the time to go through all the air leak testing. 😊
When you talked about time that the shop takes to get into these chain saws, that is why on my (MS-291) they put a label on there bench of as is sales product out in lobby of JD tractor sales business. Thay priced my MS-291 at $420 sold as is. The saw was damaged on handle bar behind the black hold down safety. Just cracked. ( I taped it up with Gorilla Tape) The sales guy at counter told me exactly what you said. There techs time to replace handle cover was not worth it, they could sell it as is. It was a new saw. I have never had a issue cutting with her. 😊 She cuts like a raped Ape 😊 compared to my (Sears) saw. I bought the sears because I liked the priming bulb, and the Price. But boy the Stihl cut so much faster and better for personal usage cutting up round stock on branches especially Harder wood. I have a tone of big branches, that took no amount of time with Stihl, 😊 the Seare saw was slowsr cutting. Just harder on my old back.😊😊 I wished lived closer to you, love the COIL test with feeler gage tool.
Hi from Ireland. Great Knowledge, clear Instruction videos. 😊.
After watching your videos , I am much more comfortabe doing Chainsaw, maintence now. Its satisfying to be able to fix things yourself.
Love your dedication to the 2-cycle science!
Have an 025 with a red selector lever in the garage waiting for a new AM piston and cylinder. Enjoying the 2 stroke videos! Should be string trimmer season soon.
Excellent! Truly Excellent tutorial. Camera work is clear, in focus with really good closeups. You delivered your content without any extraneous blather and was very complete and to the point. Though I think of myself as a pretty good home-owner mechanic and download OEM service and parts manuals for all the equipment I own and refer to them before starting a job. However, you showed me a more precise way to set coil gap and a procedure to pressure check the needle and seat. I have a Stihl MS210 "hurricane saw" (I live in Florida) that like a fire extinguisher, hope never to have to use. Right now I can't tell if the saw has a kick-back problem when pull starting or if I am just too old (81).
Love your videos right on the money you explain it all so well all the videos should be like yours❤
I appreciate that!
Thanks for your great training video. Sure helps me understand chainsaws. No matter what brand, I suppose.
High test fuel supposedly has no ethanol in it. ? Should we be using this in our saws. ?
Thanks a bunch. 👍🏻👍🏻👋👋
Great content! Just found your channel. Keep up the great work. Its not lost on me how much work it is to record this stuff while you're doing it.... not to mention all the editing in post. Is there a manual or catalogue for all the OEM tooling you use? Those T Handles you have for the T27 and 8mm nut look super nifty. I'm wondering if my local Stihl dealers have a stash of these somewhere in the back.
It's amazing how a little TLC and carb parts fixes a good old saw. John from MI
Yes indeed!
This was very thorough video. You may have solved my same issue. I had to rebuild the cylinder etc and ordered new carb that didn’t fit the carb cover. So if I can find the carb gasket kit that may be the exact issue fix that is needed. I’m in Italy and they don’t use ethanol fuels, but the age and old gas may have added to the deterioration of the gaskets. 100% impressed with your testing and results. Grazie Mille! Thank You!
Glad it helped
Awesome video, great work. Thank you
They can say what ever they want, but fix chainsaws, you do that so well, like a pro .😉👌👏👏👏👏👏👏👏.......
They can say whatever they want :)
Really useful video! My saw sat for over a year with Aspen fuel in it and displayed the same symptoms. Thanks so much from Wales 🏴 in the UK.
really enjoying seeing your skilled repairs. my Stihl dealer recommended ONLY using Sihl Motomix premix fuel. she said, most saw issues are caused by customers fuel mix and ethanol. was that good advice?
Motomix is a great product, especially when the saw is sitting unused for a period of time.
I live in Florida and we have ethanol free fuel available at the pump it's more expensive but I always buy it for my mower and saw
are my new stihl chainsaw person ! I am 78 yrs old so that is saying alot as a former heavy equipment mechanic.
Muy interesante el video y las pruebas que haces para ver las fugas de la maquina. Y sobre todo tu manera de trabajar tranquila y pausada explicando todo bien. Felicitaciones.
great video content on diagnosing 2 stroke engines. I've worked on my own stuff before, didn't realize how important the pressure and vacuum test to crankcases and fuel system are. I need go get my saw out the shed and do some exploring.
Well done…. My saw does same, im in the know now!!💪💪🍺🍺👍
Really enjoy your channel and how you bring chainsaws back to life.happy saws cheers 👍
Those NO-SPILL gas cans are available at Tractor Supply (and other places). They are great and I have several.
Thanks I need a one gallon one 😊
Sounds beautiful, great to save from the scrap heap.
Great as always, didn't hear if you put a new spark screen that was missing.??? I assume you did. I'll redo the video as I may have missed that part. Thanks so much.
The moral of the story is. Don’t leave crappy fuel in your chainsaw! Ethanol Fuel Sucks! Good Video! 👍
I recently discovered your channel and love the way you diagnose and explain each step of your repair. Do you have a tools list on Amazon like many do on TH-cam?
I am going to work on listing my tools, and I'm working on a video all about tools!
Yea please i'd like a tools list as well. Thanks. @@marriedwithsmallengines
You are the greatest mechanics .thanks for teaching us how to work on chainsaws.where can I buy the pressure vacuum tool.? Thanks again
Can you cover seasonal storing recommendations?
You need a new pointer finger, eh? Does Stihl not recommend a pop-off test on the needle/seat? Good to look at the mixture screws taper area for damage caused by bottoming out the needle. Never did like a saw with one bar nut, but I do have a couple electric like that. Good for around the house, start every time. 😁
Your an excellent tech I have watched most of your chainsaw videos and like the process of your trouble shooting 👍🏼👍🏼 keep the videos going 👍🏼
Another great tutorial..thanks
Thanks for this video
It's excellent
Very detailed but easy to follow and understand
I really enjoy all your videos
I'll look forward to the next one
Thank you
Glad you like them!
excellent communication and diagnostics! Do you have experience with after-market carbs vs Stihl OEM?
OEM always works!
Aftermarket is hit and miss.
Lovely day
Good practice 👍. I notice you most always wear chaps if running a saw with the Cain & bar. Another good habit👍
Good video, calm and methodical.
Subbed. 👍
We need to see more of that cat!
You are the prettiest chainsaw mechanic I know of. 😊 Shalom/gw
250 as it’s a very popular saw.
Great video, thanks for posting! Question: does a MS211 have an impulse fuel line? My saw is not getting fuel to the cylinder but I'm getting fuel to the carb. Has me puzzled...
Do you use stihl carb kits and fuel lines/filters?
I did a stihl kit in my 30yr old 026 maybe 12 yrs ago. My 440 magnum has never had carb taken apart
Could you do an in-depth 4 mix video?
I think I may have some coming up!
Better work on the 261 next unless you ate your Wheaties,lol! I actually thought that the needle and seat would be leaking because of the flooded condition and the discoloration on the air filter.
I always dump the fuel from my saw tanks after cutting wood. I'm cutting 8-10 cord a year.
My 031-041's have never had fuel problems for starting. I use Sheets non ethanol 90 octane fuel also mixed w/ Stihl synthetic . You take care of your saw, the saw will take care of you ! Stay away from store bought canned fuel.
I am new to chainsaws and I use my saws only a few times a year. But I've been tought to do the same. Take old homemixed twostroke fuel out and fill it up with aspen twostroke. It has a 5year shelflife and is safe for long storage in your engine.
After emptying I just run the saw on aspen for maybe a minute in idle and done. Set it aside for months and they allways start up smoothly
My local saw shop sells ethanol-free gasoline by the gallon and will add 2-cycle oil per my specifications. At the end of my cutting season (October) i drain the fuel from my weed eater, chainsaw and other gas powered tools and then run them until the run out of gas.
"I've got this saw bent over, ready for inspection." 🤣🤣🤣
261please and while it's on your bench could you talk about fault finding on those heated handles
I fully agree to find the actual issue before adjusting the carb., however I see no reason to not at least check the settings, in case the owner tried to adjust for the issues. If you know the adj. were not changed from when working, then I would leave them alone till finding the dirt(I imagine); still watching.
Fantastic videos, well-explained and very interesting how you work thru all possible issues.... am really impressed how good you are as repairer...... keep up the good work you do..... regards from Sweden 👍👍👍
Nice job
Looks like a brand new saw. Still under warranty? I have purchased 3 stihl machines, and in every case, they doubled the warranty if I bought an 8 pack of stihl premix oil.
It is newish (under 5 years old, barely used) , not under warranty - not that any of it's issues were warranty issues. Thanks for watching!
I have the same problem with my Stihl gas string trimmer. Thanks for your very informative video!!! Ill probably just buy a new carb. Out of curiosity, where is your shop at? Im from BC.
Another enjoyable, informative video.
Question..I notice you put the chain brake on, every time before attempting to start a saw. Is this a Stihl safety protocol? Maybe just me and my woodcutting roughnecks have been overlooking this safety feature when starting, thinking this was just a kickback safety feature.
Your take?
I do it as a safety precaution. It’s how I was trained.
Some people will agree, some will disagree.
An old guy once told me “the chain is always out to get you”.
YES PLEASE. 261 next.... Thank you. :-)
Coming soon!
@@marriedwithsmallengines Thank you.
Great video! If u had a way to get close ups of what your working on and the parts u would jump to 1000% on your videos. Keep them coming
Thank you. I will try!
Hi please let me know what kind of fuel you’re using non ethanol ???
The 211 has a terrible reputation here in Australia, restart and running issues being the biggest problems. I have one at home with a bent connecting rod, I am still baffled how you bend a rod in 35cc chainsaw.
👍👍 👍. Another outstanding video. Thank you
Ethanol fuel, bad idea on small engines. You confirmed it once again for me.
What does doing both a vac test and a pressure test on the engine show that just doing 1 or the other wouldnt?
Great question! So, sometimes crank seals will leak under vac but not under pressure. And I have seen many times where an intake boot will leak under pressure , but not vacuum. The Stihl service manual states both a vacuum test and pressure test must be done , vacuum always first.
@@marriedwithsmallengines thank you. Where in ontario is your dealership? I'm located in peterborough and always looking for good places to take my stihl equipment.