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Donald
Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 2042
Experience:  I have 25+ years of experience repairing 2 & 4 cycle engines
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Ryobi string trimmer with coil #308389002. Trying to find

Customer Question

Ryobi string trimmer with coil #308389002. Trying to find out primary and secondary resistance specs. Trimmer came to me not running and in pieces (in a box). I am checking everything I can while its apart.
Submitted: 1 month ago.
Category: Small Engine
Expert:  Donald replied 1 month ago.

Hello. Thank you for choosing Just Answer. My name is***** will be happy to assist you.

Expert:  Donald replied 1 month ago.

The engine manufacturer does not list the resistance specs for your ignition coil. I do have some suggestions for you.

Expert:  Donald replied 1 month ago.

I would take a chance and mount it to your engine, then check for spark, These ignition coils rarely fail during the life of your engine.

Expert:  Donald replied 1 month ago.

The kill switches fail more often than the ignition coils. If you check for spark, and you do not get a spark to your spark plug, remove the kill wire from your ignition coil, then check for spark again.

Expert:  Donald replied 1 month ago.

You and I can continue from here. Thank you again!