How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask JohnF2015 Your Own Question
JohnF2015, Small Engine Technician
Category: Small Engine
Satisfied Customers: 1140
Experience:  Owner/Service Technician at S & J Small Engines
Type Your Small Engine Question Here...
JohnF2015 is online now
A new question is answered every 9 seconds

My stihl 271 chainsaw will not firer it was fine the last

Customer Question

my stihl 271 chainsaw will not firer it was fine the last time I used it ive pulled the plug an even held on to it while pulling the rope the saw is only 1anhalf years old
JA: What's the make/model? Engine (gas or diesel)?
Customer: ms272 1411(###) ###-####engine is gas
JA: What happened just before this problem started? What troubleshooting have you tried?
Customer: nothing the saw ran great last year got it out this year fill it with fuel pulled the rope will not start checked the plug its wet just not firing
JA: Anything else you want the engine expert to know before I connect you?
Customer: had the saw checked out at the hardware I bought it from they said the piston an cycler wall was scored they didn't even take anything apart I know that wouldn't keep the saw frpm fring
Submitted: 1 year ago.
Category: Small Engine
Expert:  JohnF2015 replied 1 year ago.

Hi, my name is***** will be assisting you.

You are correct in that the piston/cylinder damage would not keep you from getting spark to the plug but it would keep you from getting the machine started.

If you are not getting any spark to the plug the first thing that I would do is unplug the small ground wire that goes to the ignition coil itself and then recheck for spark at the plug. If you get spark then you know that the ignition coil is still good and the problem is in the wiring. If you still have no spark with that wire unplugged then the ignition coil is bad and will need to be replaced. It should still be under the Stihl ignition warranty and you should be able to have the Stihl dealer replace it at no cost to you.

If you are getting spark but it still won't start then I would do a compression check to make certain that you have at least 90 PSI compression on the machine. If less than 90 PSI then it will not start and run or if it does it will be very difficult to get started.

Thank you it has been a pleasure to assist you.

Please take a moment to rate your experience.