Stihl ms170 chainsaw will not start: Shop Tools  -- Home and Garden Discussion Forum and Review Stihl ms170 chainsaw will not start: Shop Tools -- Home and Garden Discussion Forum

  parts   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up


FAQ:   What is a tractor?

Forum Index


New As Posted | Active Subjects



Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > Shop Tools Forum

Page [ 1 ] | 2 | | Next >>
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 08-24-2008, 20:25 Post: 156272
dayleh



Join Date: Aug 2008
Location: Quaker City, ohio
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

4
Filter by User
 Stihl ms170 chainsaw will not start

I had my chainsaw out last week and it started and ran great. I got it out this week and it wouldn't start, not even fire. I pulled the spark plug and cleaned it, no help, tried using starting fluid to start it but still no fire. I bought a new spark plug but still nothing. I held the spark plug against the top of the cylinder and turned it over. There is a small blue spark at the spark plug. I have also taken the carb. apart but it looks clean. Any ideas what I have missed??

thanks in advance for the help.
dayle






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo | Share This
 08-24-2008, 20:36 Post: 156273
kwschumm



View my Photos

View my Photos  Pics
Join Date: Feb 2003
Location: NW Oregon
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5764
 Stihl ms170 chainsaw will not start

Did you fill the tank with the same fuel you used last week? It sounds like old fuel or plugged fuel filter.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo | Share This
 08-25-2008, 09:57 Post: 156283
kthompson



View my Photos

View my Photos  Pics
Join Date: Oct 2005
Location: South Carolina
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5223

3
Filter by User
 Stihl ms170 chainsaw will not start

Check the exhaust for insect clogging it. kt






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo | Share This
 08-25-2008, 10:05 Post: 156284
DennisCTB



View my Photos

View my Photos  Pics
Join Date: Nov 1998
Location: NorthWest NJ
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 2652

2
Filter by User
 Stihl ms170 chainsaw will not start

Make sure you are using new gas.

Take the air cleaner off and pour 1 tablespoon of fuel into the carb with the plate open.

Try to start, repeat process as needed Smile

If you get a bit of a start this way but it dies you know that the electrical is good.

Replace in tank hose and filter.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo | Share This
 08-26-2008, 16:05 Post: 156325
dayleh



Join Date: Aug 2008
Location: Quaker City, ohio
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

4
Filter by User
 Stihl ms170 chainsaw will not start

Ok

this was the same tank of gas that I used last time. I tool the muffler off before and cleaned the spark arrestor screen.
I have just tried putting gas directly into the carb. about three or four times but it still will not fire at all and the front of the muffler is wet with gas.

any other ideas?

thanks
dayle






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo | Share This
 08-26-2008, 17:18 Post: 156327
DennisCTB



View my Photos

View my Photos  Pics
Join Date: Nov 1998
Location: NorthWest NJ
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 2652

2
Filter by User
 Stihl ms170 chainsaw will not start

After pouring the tablespoon of gas down the carb throat are you setting the throttle to choke or run? Try it on run instead of choke so you get more air. Spark, gas and air should equal explosion Smile

Hard starting can be frustrating.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo | Share This
 08-26-2008, 19:30 Post: 156334
Chief



View my Photos

View my Photos  Pics
Join Date: Jul 2003
Location: Southwest MiddleTennessee
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 4285
 Stihl ms170 chainsaw will not start

I have a Stihl ST420 blower/sprayer do something like this when I first got it. Turns out the magneto/coilpack went bad. This could also be a problem with the mag pickup on the flywheel. The spark may be intermittent. If you tried ether, it should have at least sputtered if you had any spark.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo | Share This
 08-26-2008, 19:56 Post: 156338
dayleh



Join Date: Aug 2008
Location: Quaker City, ohio
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5

4
Filter by User
 Stihl ms170 chainsaw will not start

I have tried both choke and run but neither made a difference.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo | Share This
 08-27-2008, 08:46 Post: 156349
kthompson



View my Photos

View my Photos  Pics
Join Date: Oct 2005
Location: South Carolina
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5223

3
Filter by User
 Stihl ms170 chainsaw will not start

My chain saw is a Shindaiwa. It will not crack if has weak gas or gets flooded. If it were my chain saw I would drain out all gas and buy new gas and new oil mix if I had confidence in the spark being there. Check and see if you have any water in the gas. Even fresh gas could. Never had any problem with our Stihl leaf blower execpt when insects blocked the exhaust ports. That machine will set for a couple of months between uses. Sometimes a reasonable shop fee is cheap. kt






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo | Share This
 08-27-2008, 11:06 Post: 156354
Justus



Join Date: Jun 2002
Location: Justus, Pa.
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 179
 Stihl ms170 chainsaw will not start

Did you have the proper oil to gas mixture?






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo | Share This
Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] | 2 | | Next >>

Discussion Boards > Active Subjects > Messages as Posted > Shop Tools Forum

Thread 156272 Filter by Poster:
auerbach 1 | Chief 1 | dayleh 4 | DennisCTB 2 | Justus 1 | kthompson 3 | kwschumm 1 | Woodie 1 |



SEARCH


 (Advanced Search)

Picture of the Day
tipoblanco

Parts and Repair - Cub Cadet 7260
Cub Cadet 7260


Recent Posts without Replies
   2005 MF 431 2WD orbital valve
   themaxgood
   Anyone have a John Deere 2025
   How big is Enough LED Dash Inf
   Who Makes Most Front Snowblowe
Recent Topics with Activity
   TC40D wants to keep moving
   Cub Cadet 6284 with Westendorf
   Angle Shutoff Valve Failure in
   John Deere vs Kubota or other


Featured Suppliers

Mountain Creek Labradoodles
      MountainCreekLabradoodles.com





New Forums on Gun Sport Shooting and Hunting -- BarrelPoint.com  New Forums on Horses ManePoint.com
Talk Horses at ManePoint
Hunting + Gun Sports at BarrelPoint



Most Viewed

+ Stihl 026 chain saw does not start
+ Parts for Woodzig tree trimmer
+ Diesel fuel for parts washer solvent
+ Stihl ms170 chainsaw will not start
+ 3 Pt PTO generators
+ Stihl 020 AVP Manual for Restoration
+ What kind of Chainsaw to buy
+ Best Portable Generator 7500W Review
+ Best Tool For Sharpening Brush Hog Blades
+ PTO Generators Observations

Most Discussion

+ Generator set up ideas wanted
+ PTO Generators Observations
+ What kind of Chainsaw to buy
+ 3 Pt PTO generators
+ PTO Horsepower and Generator Q
+ I love my Generator
+ Burnt up stihl 290 chain saw 4
+ Features to look for in stand
+ Yamaha Generator problem
+ Best Portable Generator 7500W

Newest Topics

+ Get Top Branded 300 Savage Ammo
+ Things you should have in your toolbox
+ Stack Gas Analyzer
+ TroyBuilt Rototiller Horse Model with Briggs 8 hp
+ North American Power Tools
+ Broke drill case
+ no electric power
+ Honda Gx270 Will not start Stumped
+ 2-Cycle Pre-Mix Fuel now sold at Lowes Home Depot
+ lincoln weldanpower ac2255 sa