[ssrsupermoto]

Originally Posted by Triple Jim

Are you talking about using an offset key, or cutting the keyway on the flywheel wider? Anything that doesn't let the engine turn as far before the spark happens will advance the timing, so if you cut the keyway in the flywheel "to the right", it will be rotated on the crankshaft counterclockwise from stock, causing more advanced timing. Then if you cut the keyway wider you'd have to either use a key with a wide half, or trust friction to keep the flywheel in the right place.

Of course if you remove the flywheel and look at the keyway, that "to the right" becomes "to the left".

Using the kit purchased from Factory Pro using the offset key way.