[JimDirt]

I have 2020 crf450rwe and have same problem so I end it up to add momentary switch to by pass a 12 volt to low current starter relay and I just call it problem solved

Welcome to the site !!

What was the cause of your starting issues ??? , was it working fine , then the next time it would not start ?? , I have not had any issues with my 2020 and I am just hitting 100 hours on it with not 1 issue with anything electrical or mechanical (aside from wear parts like chain guides , chains and tires and brake pads), so I am trying to find a common symptom or cause between all these posts that is causing these issues , and they all seem to be caused by a different issue , is what I am seeing , but giving the same results/problem

[Reddis]

Guys I have the same problem with my 2020 450RX, Like the video on YouTube. Can someone please give me the solution🥲

I'm 95% sure it could be the mapping mixed with a fowled plug, these bike run rich in low gears so if it wasn't ran fast and then shut off this could cause the plug to fowl when trying to start up again, Tokyo mods can remap your ECU or you can buy a aftermarket one that's already mapped to solve that mapping problems, which in turn could prevent plugs from fowling.