I just got two new coils for my GD31-hp.It came with two new coils and a offset keyway with a note to refer to bulletin #740,
What is service bulletin #740?
I have looked all over the internet and found nothing.
If anyone could help that would be great.

Thanks in advance.

Well I finally got an answer to my earlier question,the extra offset keyway is to be used with the use of the new style coils to help with the performance of the engine .The installation of the keyway is that the the painted end of the keyway is to face outwards.So anyone who gets new coils hope this helps.