A little Stihl help please

[Diamond S]

I have a FS90 trimmer that is/was showing signs of the coil going bad. I have tried to find out what the resistance of the coil should be, but can’t find the info I need. Anyone on the green screen work at a small engine shop that may have a service manual, or anyone who has better search skills than I that could find this information for me.

Thanks

[Diamond S]

Bump

[coy-ote]

Have you tried ereplacement.com. I’ve entered the model number and found what I was looking for hope this helps

[Diamond S]

Have you tried ereplacement.com. I’ve entered the model number and found what I was looking for hope this helps

Oh I can find a replacement, that is not an issue. What I am looking for is what the coil itself should ohm out to so I will know if it is good or bad. Don't want to fix it if it is not broke.

[coy-ote]

Gotcha

[Diamond S]

one more bump

[zac221]

Try calling home base in copperas cove ask for Michael or Armando. See if they’ll give you the info. They helped me with an old saw a few weeks ago.


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[Silvey]

If when it gets hot it stops running, then it's the coil. Cold, mine had the correct ohms. Wire would open when it heated up.

[Diamond S]

Try calling home base in copperas cove ask for Michael or Armando. See if they’ll give you the info. They helped me with an old saw a few weeks ago.


Sent from my iPhone using Tapatalk Pro

Thanks, I will give them a call

[Diamond S]

If when it gets hot it stops running, then it's the coil. Cold, mine had the correct ohms. Wire would open when it heated up.

Exactly what I was thinking, but with mine it has graduated from just randomly going dead to will not start at all.