Who has an Ivans kit fitted and be willing to let me try it ?

[FuZzBoM]

IMPORTANT NOTE:
Remember!
This is an R1 motor. Ignition advancers are not recommended unless you have significantly raised the compression!

From the Ivans kit instructions, any ideas why?

I had read the same thing before. But then it was pointed out to me most Americans tend to run cars/bikes etc. on lower grade fuel (85 Ron) Ours is 95 Ron as standard. I run mine on Shell V-power (claimed to be 99 Ron) so this allows for a more reliable detonation and less pinking. As such over here we can run an ignition advancer with little issues and in truth I do. mine is a nicer bike to ride under 5000rpm in everyday traffic.
I know there was a time when people were getting the file out and modifying their own lol

http://foc-u.co.uk/index.php?topic=2243.0