I am a new rider and a used bike; a 2024 CB300R with just under 10k miles. I only put a few hundred on it myself. The internet says average city MPG is 60mpg but I tend to get 40-45 in the city. I am sure SF hills and stop signs are burning gas but I want to learn basic wrench skills and make sure I am taking care of her right.

My short list of maintenance is checking the spark plugs, air filter, and tire pressure. Are there other basic things that might be dragging the gas mileage down?

Are there any basic newbie riding mistakes I'm probably making in stop and go traffic or on the highway? Fuel economy or general.

I'm not trying to hypermile but being that much worse at fuel economy than specs seems like its telling me something.