I have acquired a Stihl 170, it has no spark. I've replaced the plug, coil and checked wiring to switch but still no spark. The air gap for the coil was set to .010

SOURCE: 2001 tiburon has no spark. replaced coil pack and

You have crank sensor problem . No signal to computer if no signal to computer no ejector pause

SOURCE: 85 dodge 360 no spark replaced, coil , ign switch,

I would suspect the ignition control if you have already replaced all that stuff. I personally would replace it with an MSD ignition for better running and fuel mileage, but the ignition module should be a whole lot cheaper.

rtpflh

• 546 Answers
• Posted on Oct 06, 2009

SOURCE: No Spark - Cub Cadet model 71 with a Kohler 8hp

check condition of the magneto,located under the flywheel

SOURCE: no spark in stihl 025 chainsaw. I replaced the

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
http://www.youtube.com/watch?v=L7WNBDRG4C4
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
Lou

SOURCE: My 98 Suzuki VL1500 has a weak spark to the rear

check your carbs. it might be dumping to much gas in that cylinder, causing the plug to fowl out and have a weak spark. make sure the carbs are adjusted and then sync them for proper fuel air mixture.