This is a very easy thing to do and makes a huge differance.
Buy a Yamaha R6 2006 throttle sleeve, part number 2C0-26240-00-00 £18.27
Remove original throttle sleeve and attached switchgear and you will be left with this
remove 2 small screws being careful as the one with the copper on has a spring inside for the starter button.
Then you will be able to remove the part which needs trimming down, be careful as you dont want to break the locating clip on the side. Using a dremmel or similar trim away at the plastic and also create a groove for the cable to run in. go slow and keep checking progress but just holding it all together again with the nrw R1 sleeve inplace untill it moves without catching.
You can see here how much bigger the new cam is
Once clearence is sorted, refit to the bike and re-adjust cables as neccessary, just llok at how much shorter the throw is. The white line was the original WOT position, about 15mm lower than it is now with this mod
