Motul mix oil???

[iggys-amsoil]

I believe this to be an ignition problem, not oil.

[fastkart]

Nothing wrong with the ignition, just my ability to adjust the carb for temp, humidity and altitude changes.

The ignition has performed flawlessly before and after that piston melted last October, including this past weekend when it was on my GSS motor that ran WFO nonstop for a mile at 9,200 rpms.