Honda 420 has no spark

Hi I’m new here, I recently had problems with my 2008 Honda 420. It started acting up a while ago and would spit and spider so I put a new fuel filter in it, didn’t work, new spark plug, didn’t work, rebuilt the motor because it was using oil, but after that all it ran but not perfect, then I took it for a rip and turned it off and then it didn’t start so we pulled it back to the shop, we found out the injectior was plugged up it wouldn’t even apart anymore so we got a new one and put it in and now it has NO SPARK, check it all over the coil is good, new spark plug. So now I found out there is no power getting to the coil. There’s 2 wires a black and red and a green and yellow. I put a test light to the black one and it lights up and on our other quad that runs perfect I checked it’s wires and the black one the light blinks like it should. Now I’m stuck and need your guys help. Thanks!