Hello to All,
New to the net and love all the go info here. Just bought boat and was going thru the paper work. The boat seems to be way over prop'd which explains only getting about 1500 rpms out of the YSM8. According to the service manual, I should have a 12" x 7-1/2" not a 13" x 12". I believe the bore is 7/8". Can anyone confirm or give some insight on what they are using.