2010 450 no spark

my trusty bike left me standin or should i say pushing ,on my way to the starting gate it just died . first thing i tried was disconnecting the kill switch then a new spark plug no luck ,my buddy has the same bike so i tried his black box that is behind the number plate , still no spark ,anyone have any ideas ?:eek: and yes there is gas in it that was my first thought .just no spark

Plug a tuner in and see if it has set any fault codes.

Then check your wiring, and then follow the troubleshooting process in the manual. You've already eliminated the ECU, so you need to know if the generator is working, if there's a trigger signal, if the coil works, etc.

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