Loom will be fine then You'll need to remove a few wires from 1 of the pick up points that the 12- bikes have for the gear indicator but apart from that it's plug and play really.
The stock engine served very well, its now 31tkm on the clock, 16 was made on the track, meaby 1500-2000 in racing the original engine is now broke....almost new 2012 engine goes in over next few weeks, also i will again rebuild gearbox with Nova racing parts, to avoid 3rd gear failure, wich happened to me 2times over last two years one more time, thanks ColinBR