Originally Posted by
Tim_Iowa
Good to hear you're getting back on the bike. Navigators are basic bikes but comfortable for short distances, so they're an ok bike to get started on (and easy to fix).
If you like cycling, consider getting a newer, lighter, 700c hybrid. It would roll a lot easier than the Navigator on its MTB wheels and tires.
As others have said, there are lots of helpful videos online for bike maintenance. Park Tool has a very helpful DIY section.
I live in Citrus county Fla. we have a rails to trails,they topped an old railroad base and made it a walking / blke trail. It's smooth,shaded and has a few up and down hill grades but a great place to ride. The seven speed navigator is about all my wife can handle,I have a Trek 7000 which is about all I need for the kind of riding I do.