I know nothing other than the title says is a 69, 17' 4", the placard says its a Cheetah. It has a rear mounted 4 cyl. engine under a cowl between the rear seats. I cant identify the 4 cyl motor, and the drive has a round placard on it that says "Outboard Marine". 6 seats - 2 rear, 2 center, and 2 on the bow. Split windshield. ANY help with identifying the drive and engine would be greatly appreciated. The motor runs and the prop turns forward and reverse, but Id like to go through it before I put the family in it on the water.......... THANX!