Originally Posted by KarenH
Today I found a screw at home that fit the hole and am using it. I remembered that the original screw had a spring on it too so I took the spring off of a ball point pen and am using that on the screw I found that fits.
Your innocence and lack of mechanical knowledge are adorable. My thoughts are that I'm glad you're not a commercial-airline mechanic.
You DO get major points for "gumption" and "sticktoitiveness"; I admire your attempt at memory-based-repair.
The idle-screw is proprietary, so I doubt the one you used is adequate to maintain proper idle. The spring is also proprietary, and keeps the screw from moving around due to vibration. That said, the idle-screw is the least of your carb problems, although not having it is a major irritant; idle is not critical to a properly operating engine. I expect you have an NT carb. If so, these excellent devices are so CHEAP that you'd be better off buying a new one on eBay for $10 than trying to find replacement parts. Buy a new one and remove that problem from the equation.
Keep learning and don't give up! These kits are excellent engineering studies...you'll soon start having "ah HAAA!" moments.
Congrats on the inner-tube replacement! It seems like a simple task, but it's a VERY important skill around here. You'll soon level-up to actually PATCHING a tube!