Justin Redlick 0 Posted May 16, 2023 2013 Honda foreman 500 no spark. I have 12v at the BLk/R but only when grounded to engine. If I ground to Gr/Y readings are all over the place> I have a peak voltage tester just not really sure how to use it. Thanks for any help Share this post Link to post Share on other sites
jeepwm69 7,600 Posted May 17, 2023 Not sure on the "only when grounded to engine" part. No spark on that model can be caused by fuel injection relay or the turnover sensor, whatever it's called. If you run a jumper wire from battery + to red/blk terminal on the coil it bypasses those, so try that and see if it starts. Share this post Link to post Share on other sites
Justin Redlick 0 Posted May 17, 2023 I have tried to run direct power to the coil still no go. Thanks Share this post Link to post Share on other sites
jeepwm69 7,600 Posted May 22, 2023 Perhaps @toodeep or @Melatv would have an idea? Most of us around here are more well versed on the carb'd bikes Did you look in the factory service manual and try troubleshooting from there? Share this post Link to post Share on other sites
