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I have a FS 80 Stihl, there is no spark, I’ve changed spark…

Customer Question
I have a FS...

I have a FS 80 Stihl, there is no spark, I’ve changed spark plug and ignition coil and still no spark.

Mechanic's Assistant: I'll do all I can to help. How long have you been dealing with this?

It was running a few days ago and stopped!

Mechanic's Assistant: Do you plan on doing the work yourself?

Yes

Mechanic's Assistant: Anything else we should know to help you best?

If I’ve made the changes with the ignition what else could it be

Submitted: 4 months ago.Category: Small Engine
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Answered in 9 minutes by:
3/29/2018
Technician: Donald, Small Engine Technician replied 4 months ago
Donald
Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 2,586
Experience: I have 25+ years of experience repairing 2 & 4 cycle engines
Verified
Hello. My name is***** will be happy to assist you.
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Technician: Donald, Small Engine Technician replied 4 months ago
If you are still not getting a spark, you could have a faulty kill switch.
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Technician: Donald, Small Engine Technician replied 4 months ago
Did you set the gap between your ignition coil and your flywheel?
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Customer reply replied 4 months ago
If I disconnect the kill wire shouldn’t that eliminate that?
The gap is .020
Customer reply replied 4 months ago
What should the gap be set at?
Technician: Donald, Small Engine Technician replied 4 months ago
you are correct. If you disconnect your kill wire, your kill switch will be eliminated.
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Technician: Donald, Small Engine Technician replied 4 months ago
Set your gap at 0.10”
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Technician: Donald, Small Engine Technician replied 4 months ago
Is your new ignition coil an OEM part or an aftermarket part?
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Customer reply replied 4 months ago
After market
Customer reply replied 4 months ago
I set the gap at .10 and still no spark
Technician: Donald, Small Engine Technician replied 4 months ago
Thanks for confirming. If your gap is correctly set, and your ignition coil is right side up, with kill wire disconnected, but no spark to your spark plug, is an indication of a possible bad coil, although it is new.
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Technician: Donald, Small Engine Technician replied 4 months ago
I suggest that you purchase an OEM ignition coil.
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Customer reply replied 4 months ago
Where do I get that?
Technician: Donald, Small Engine Technician replied 4 months ago
You can purchase one from your local Stihl or John Deere dealer. Sometimes you can find one on eBay.
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Customer reply replied 4 months ago
There’s no other possible ignition options?
Technician: Donald, Small Engine Technician replied 4 months ago

Removing your kill wire eliminated all other possibilities.

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Technician: Donald, Small Engine Technician replied 4 months ago

Have you checked your flywheel magnet?

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Customer reply replied 4 months ago
What do I check? It’s there!
Technician: Donald, Small Engine Technician replied 4 months ago
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Technician: Donald, Small Engine Technician replied 4 months ago

Hold a screwdriver about an inch from your flywheel magnet. It should draw the screwdriver to it.

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Customer reply replied 4 months ago
The magnet is fine! I guess I’ll get a new OME coil and try that!
Thanks for your help!
Technician: Donald, Small Engine Technician replied 4 months ago

You are very welcome! I do hope all goes well for you.

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Technician: Donald, Small Engine Technician replied 4 months ago

When you have an opportunity, please take a moment to rate my assistance.

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