Jonathan Bickerton 1

I have recently built a burky 2 autogyro and have tried a couple of times to fly, unfortunately both ending in tears. After reading the articles written by Tom Wright its now apparent to me that the rotors are not getting up to speed. The question is why they are not getting up to speed, i have not made any of my own modifications and is built as Richard Harris designed it . The rotors will spin up in a gale but refuse to increase in speed by either running with the model or pulsing the power on the ground. I live in the Notts area and would welcome someone trimming this model out for me.