i just wanted to share my experience with other fellow zx6r owners that are thinking of doing a full service. its annoying!!! i had to take off the tank but had trouble unclipping one connector under the seat. without disconnecting this clip, i could not take the tank right off. the next problem i encountered was taking out the spark leads. omfg....these are so tight and it took me 30mins to get them off. you have to slowly wedge them out with a screw driver but also give it abit of force. they stuck like shit to a blanket. i reckon it took me 4hrs all together to change the sparks, oil, coolant and then put everything back on.