Open the throttle a bit to get the higher idle. Mark a line on the two pieces of tape (so you can hold the throttle in the same place else it's hard to set the air screw). Clamping it is even better.
For the software, see Adobe Illustrator. An illustrator is an artist who specializes in enhancing writing or elucidating concepts by providing a visual representation that corresponds to the content of the associated text or idea.
Answer Wiki. An illustrator's income is highly variable. Feast or famine. The least I've made per month is nothing. The most I've made in a single month is probably around ten thousand dollars. If I could keep work coming in steadily, I'd make $100k or so per year.