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Stihl MS 170 / 171 MiniBoss

Stihl MS 170 / 171 MiniBoss Questions & Answers

MS 170, MS 171
3.9 from 61 reviews · View Statistics

22 questions from our users

Jack D. W.

Jack D. W.asked

MS 170 / 171 MiniBoss

Does the MS170 , MS 171, MS 180 and MS181 all have automatic chain oilers?

No answers
lescam

lescamasked

MS 170 / 171 MiniBoss

what size cutter bar does stihl mini boss come with?

No answers
Mark

Markasked

MS 170 / 171 MiniBoss

So I tried to put a new 16" Stihl chain on my Stihl ms-170...and the bar grooves were too narrow for the new chain. Are there different chain link widths for the standard 16", chain? Thanks!

1 answer
mancuniancom
mancuniancom

I bought a cheap chain from China which claimed to be specifically for this model. Looked OK but, like you, the bar groove was too narrow. So I bought another on Ebay at 1 X TITAN CHAINSAW CHAIN 3/8LP .043 50DL 14” FOR STIHL MS170 MS180 MS171 MS181 SOLD BY carby_doctor. They asked me for info on bar and chain fits.

Tony s

Tony sasked

MS 170 / 171 MiniBoss

My new ms170 will not turn off, put on 0 and it keeps going

No answers
Nick

Nickasked

MS 170 / 171 MiniBoss

What is the difference between the standard ms170 and the ms170 mini boss?

No answers
Davo W.

Davo W.asked

MS 170 / 171 MiniBoss

Can I put a 18 in bomerag bar on my ms171

1 answer
mancuniancom
mancuniancom

Never used it.

Sharon M.

Sharon M.asked

MS 170 / 171 MiniBoss

Stihl mini boss runs pefectly but if I stop and switch it off it wont restart. Any ideas what could be causing this??

1 answer
mancuniancom
mancuniancom

Presumably, if you've switched it off you are re- starting after a period of time: how long off.? Is the engine still hot? If it is move the choke lever to the run position (next to bottom) and pull. If there is no problem with fuel or spark it should start. If cold use normal start procedure.

Michael B.

Michael B.asked

MS 170 / 171 MiniBoss

Chain size

1 answer
Anthony
Anthony

35 cm bar with a standard chain 3/8 think

Garrett

Garrettasked

MS 170

Can a person put a heavier chain on the ms170?

3 answers
StihlSaws
StihlSaws

Yes you can! It is the same bar/chain combo on the MS211.
Bar part number: 30050004813
Chain part number: 63PM55E

Robert G.
Robert G.

Your running a .043 bar and chain, u can go with a .050 bar and chain.. wouldnt recommend though because you power to bar and chain are mediocre you put on larger, it will require more power to run the loop and there for cut slower

Sean K
Sean K

Sure can though dealers are instructed to tell you it can’t be done.
Some say it will void the warranty but if you spend the extra on Stihl parts you can argue the case easily provided you don’t go overboard.
Contrary to a couple of comments I’ve seen it’ll improve your saw a great deal though you’ll have to be mindful of bearing down on it, it’s just a baby after all, just take a little time & get used to its new & greatly improved character, you won’t be sorry.
See my review for details.

Rick

Rickasked

MS 170

I keep sharpening my chain on my mini boss but it just won't go through small pieces of wood just keeps burning through on matter how sharp the chain is what am I doing wrong?

5 answers
Aaron D
Aaron D

Make sure you have the correct size file for the chain and are sharpening at the proper angle. Sharpen from inside to outside of tooth using a forward motion only. I initially had the wrong size file and it wouldn't sharpen the chain at all.

Woody
Woody

Hi Rick,the problem is the rakers, those bumpy things in front of the teeth. Get a small flat file and give each one a couple strokes, file in the same direction as if sharpening. Try cutting again, there should be chips not dust. Repeat this process, until chips are achieved. The more you file, the more the chain digs in. You don't need to do this every time you sharpen your chain, only when you notice dust or the problem you have now. Good luck and may you spit chips.

Robert G.
Robert G.

Stihl makes a offset file that has a flat file and 2 round files in the tool. Ie as you sharpen the tooth the flat file also takes the rake down to proper height. If rakes are not correct, sharp cutters will not be able to penetrate wood

Akila T

Akila Tasked

MS 170

Can fix a big bar for ms 170?

No answers
Will

Willasked

MS 170

Can you fit a side chain tensioner to a 170. Apparently the kit for the 250 fits perfectly?

1 answer
Watto
Watto

Yes MS230/MS250 are same with the chain tensioner ,
1123 007 1000 chain tensioner kit

Mountain girl

Mountain girlasked

MS 170

Hi guys, can you tell me the difference between the MS170 and the MS 171? I’m considering buying a chainsaw to cut up seasoned wood for fire wood we had felled 18mths ago.

2 answers
Watto
Watto

Hey, Stihl ms170 vs ms171 is the 171 is a cleaner emission saw & has better vibration system. But basically the same.
I would save money and just buy the MS170

Mountain girl
Mountain girl

Thanks Watto. Ended up going with the 181 for the longer length bar!

chainsaw

chainsawasked

MS 170

How long will it take to get my chainsaw if i pay for it on Friday morning on the 30/6/17?

1 answer
Jimbo
Jimbo

Stihl dealers deliver on the spot !

John o

John oasked

MS 170

Replaced crank seals & bearings, now having trouble reinstalling engine assembly. I'm trying not to damage the rubber manifold between carb and intake
Thanks for any help
John

3 answers
Martin
Martin

Sorry John O, hard to describe need to be there.

John o
John o

On the rubber which made it slip in place. This worked for me
Have a great day
John o

John o
John o

Thanks for answer
Lost first part of my answer.
Removing rubber intake tube seamed to be the only safe way. See second part of answer. Use silicone to install rubber tube and plastic ring on engine.
This worked for me.
Thanks
John o

bmac

bmacasked

MS 170

can I use a heavier chain and bar on my ms 170? Im having trouble by braking chains [even brand new ] in hardwoods. thanks , cheers

1 answer
Dan Johnson
Dan Johnson

I have never broken a chain and I cut Black Wattle, which is very hard. I suggest your chains are breaking because (a) you are over-tightening the chain tension (you should be able to turn the chain around the bar by hand) or (2) you are not getting enough lubrication to the chain (hold the bar over a rock, rev engine, and see if a fine spray of oil forms on the rock below the bar .. if not, something is wrong).

balrog

balrogasked

MS 171

can I use sump oil for the bar? if not why not ,it is only to lubricate it.

4 answers
Jimbo
Jimbo

Stihl says used motor oil gives you skin cancer and it does not have the tackiness needed to stop sling off of oil from chain.

Dan Johnson
Dan Johnson

Sump oil will also damage or even kill living trees you cut or prune. Use canola oil, like many professional chainsawyers do

Andrew
Andrew

No only use bar oil best value in a 5 litre as has the stickiness required therefore the best lube for bar and chain

Eugy

Eugyasked

MS 171

It is practically brand new, have not used it for may months. Put gas and oil in but does not start at all. Is there some plug or switch on it that has to be turned on before starting?
dr.holly@mac.com

2 answers
russ
russ

Hi, no switches just the starting switch to the left of the trigger, if you haven't used it for quite a few months it's possible the petrol has gone sour, which makes life very difficult, also make sure the air filter is clean and remove and clean the spark plug, its entirely possible that you simply flooded it. hope this helps, good luck.

Dan Johnson
Dan Johnson

Empty out old fuel, add new fuel mixed 50:1 with the correct 2-stroke oil. Then read manual on how to start this machine. It's an incredibly easy-starting, reliable machine. If you are still having a problem, see dealer, it's still under warranty most likely.

Pipefighter

Pipefighterasked

MS 170

Do all the 170's leak the chain oil when not in use. I have a case to keep it in so it isn't running on the floor but am wondering if it is a common flaw?

7 answers
mark w
mark w

I think all chainsaws do this. It weeps out from where lubes the chain when in use

russ
russ

mine doesn't, but i dont know how, as as far as i can see its a gravity feed, which means it probably should, so i can only surmise its not a problem, if all else fails, consult the dealer- sorry can't be more help.

Beffa
Beffa

I think all chainsaws do this unless the oil holes are blocked. A blocked oil hole may result in damage to saw parts.

L Areias

L Areiasasked

MS 170

Were is the bar oil ajustment on the ms 170?

1 answer
Dan Johnson
Dan Johnson

There is no chain oil adjustment on this machine. It has not been a problem for me (I use canola oil). Never store your machine for more than a week or two with canola oil inside it; change the oil to a mineral oil (e.g. SAE 30) and run it for a while to get it onto the chain before storing. Drying biological oils (like canola) can dry into a resin and wreck the machine.

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Stihl MS 170 / 171 MiniBoss

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