We offer an installation kit with a hole saw, but simply using a drill and a jig saw / hand saw can do it easily enough. Center the hole on the existing mast hole. If installing the older mast cup... the instruction that come with the kit says:
1. To install the larger mast cup, you need to remove your current small mast base and enlarge the hole that it passed through. Reach inside of the front hatch and twist the mast base counterclockwise until you can pull it out of the top. Also remove the small rubber cap that is screwed to the deck.
2. Use a pencil or fine tip marker to trace a 3-7/8â€
Director of Parts and Accessory Sales
Warranty and Technical Support
Hobie Cat USA
Last edited by mmiller on Mon Jan 26, 2009 5:14 pm, edited 1 time in total.