I've watched hundreds of chainsaw repair videos, this was great. The way your in the window talking to us and being able to see what's happening.

I just wanna say thanks mate
I nearly went and bought a new one.
All that was wrong was the spark arrestor needed cleaning.
I’ve had it for about 10years.
Running great now.

That was a great video! I have the same saw and couldn’t figure out why it was not running at full power. The Spark arrester was plugged up. I burnt it clean and it is running great! Thanks!

Just found your channel when my 170 wouldn't rev up.  Burned the build-up off the spark arrestor and it's running like new.  Thank you!

Thanks grease shop rag you help me a lot with problems with my chainsaw just watching you on you tube I have learned so much in fixing my my problem regards Garry

Spark Arrestor Screen completely plugged.

Thanks so much for sharing the tricks

Thanks for a very informative video. I have a Stihl ms 170 that got very low on power, I followed your advice, removed the spark arrester "I didn't know it had such a fine mesh screen for an arrester" it was clogged nearly shut, I cooked it with a propane torch, scraped it clean, the saw runs like a champ again. Thanks again!

Mine starts runs great eventually stalls after returning to idle this just started ....

my 170 never had much power right out of the store lol...thumbs up

spark arrestor was air tight - burnt it off runs like a dream - thanks very much.

Thanks, spark arester clean and runs like new!

I like this style of video.

Thank you! Thank you! and Thank you!

Thank YOU.  As the comment below from Josh.  Same here...thank YOU.

Thanks Greasy shop rag!  gonna try to clean/change arrestor!   Thanks again for the tip(s)

Great video.  I just bought a used MS 170.  I sharpened the chain and it. felt like I doubled the power while cutting   going to check the oiler next .

Great information

thankyou so much followed your advice . chainsaw now running like new again was sightly different to tours didn't  have a spark arrester screen mesh. But half the holes on the muffler box were blocked , as well as most of flutes on the spark arrester screen. so thanks again just had to subscribe.

Great informative video