What's done to de restrict it ? I've a fresh re built FZR 3LN & she does a lap & comes back in saying it won't go & little else feedback other than maybe it was seizing but it's not that, then it dawned on me it'll be restricted. I have other ECU's I can try but is it more than that or maybe it's just cut a wire that reads the ignition pulse of the RPM. Thought I read somewhere there was a link in the speedo related to a restriction. Busting to get her going & see what a fresh engine pulls like, we currently run another one that goes so well.