Lambretta timing disc timing tool MB Developments
This timing disc has been specially designed by MBD for using on Lambrettas and can be used on engines fitted with GP crankshafts. It is made in aluminum for durability. It is marked to use for general timing setting and also has special section marked where the transfers, inlet and exhaust ports open to assist with measuring ports when tuning a cylinder. 180mm OD and 12mm ID marked in 0.5 of degrees. Designed by Mark Broadhurst to make workshop timing of engines easy.