Question about Stihl Saws
According to Machinery's Handbook (24th ed pg 1650), there are four standard SAE spark plug threads, all metric: M18 x 1.5; M14 x 1.25; M12 x 1.25; and M10 x 1.0
Stihl OEM plug
Posted on Feb 14, 2019
Where did you get the coil? How did you gap the coil? Reply below please.
This tests the entire system:
Ignition Coil Test by SmallEng.com
You may need to use a jumper wire between the threaded part of the plug and the cooling fins. You do not have to bend up the electrode.
Ignition module gap
Place a business or index card between the fly wheel and coil, rotate until the magnetic attraction pulls everything tight together. Tighten the coil screws, rotate the flywheel until the attraction eases and remove the card. Ensure nothing contacts when flywheel is rotated.
If you have more questions or need additional help please reply below and I will get back to you. Thank you for using FixYa and Good Luck. HTH
Posted on Mar 16, 2010
The plug thread is 14mm, check out E Bay for a 14mm heli coil kit, they come with instructions on how to use, practice on an old cylinder first if you have one.
Posted on Sep 30, 2013
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