Sure. With the Shimano 3 speed hubs, the default gear may not be to your liking. I've seen some where a prior owner pounded a nail in to the axle to hold it in a particular gear. The bike looks to be in pretty good condition except for the tires. I'd just replace the tires and shoot a little bit of oil in to the hub to keep it working well. One easy way is to remove the push rod from the axle, lay the bike on it's side and dribble some oil into the hollow axle so it gets to the center of the internal gears.