Ejk fuel controller crf250l He was very helpful and informative. (They give a great military discount if you served) JD Jetting is the same controller. This is the full install of the EJK (Electronic Jet Kit) from Dobeck Performance. 00: SAFR Diagnostic Tool Rental. All probably great for recreational dirt biking; not so well suited to slow backroad touring where… The EJK for the Honda CRF250L increase performance, power and throttle response. Uses load based technology to adjust fuel. I was in emails with Dillon and I must say there customer service is exceptional. com PowerlabHQ. I bought the EJK (Electronic Jet Kit). Share this with your friends.