Quoted from BallyCrazy:I'm looking for the Hayburner II score motor part number. A friend of mine has a 35 RPM score motor in his Hayburner II and usually, Williams from that area have 14A-7806 (28 RPM).
This is from the 1969 Williams parts catalog available at Planetary Pinball's site.
http://www.planetarypinball.com/mm5/merchant.mvc?Screen=BOOK
Part number is 14A-7805 for the 60 Hz motor.