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RudeDog666
09-24-2009, 07:55 PM
I believe I have a bad coil in my Yamaha YT125. The resistance test gave me:

Primary 5.4 ohms
Secondary 5.8 ohms

Bad coil right?

old-yellow
09-27-2009, 11:48 PM
This is what the haynes manual says.

Primary winding resistance-1.0 ohms
secondary winding resistance-5.9 K ohms

pickup coil resistance-10 ohms
ignition charge coil resistance-300 ohms