I've just changed my spark plugs.. took off the tank, air box then come across the coils and the plastic cover... this looked like a pain to remove so attempted to remove the plugs from the side by taking just the side fairing off and was successful. Wasn't too hard either and i have big gorilla hands. U can get the plug tool on the plug then use a 17mm spanner or socket to loosen and tighten... u don't get much give each way but its possible, cos i did it. Removing the top radiator bolts would help but not essential.