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Running 400EX without a Battery

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Hey guys, so I have been doing some work on a project I am working on and have recently put it back together and took it for a test ride.  To start the bike I only used a battery but since I did not have a place to keep the battery (XR400 Frame) I did not keep it wired in the system.  From what I have found out this may have caused my starting issue I now have (No spark).  The bike is getting fuel and the battery is fully charged.  So my guess is that from running without a battery I may have shorted out some of the electrical components though I am not sure which ones to check first and how to check them.  I know I should check the stator, regulator/rectifier, and the CDI but I am not sure if one would be a better place to start over the others...my theory is to start with the cheap fixes first but it would be great to just figure it out first and then just replace what needs to be replaced.  Any help is appreciated!

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