You don't want to take one apart. Chances are it won't go back together.
You just need practice.
When I had a small side business repairing small engines and landscaping equipment, the #1 culprit of poor performance was fuel related. For small 2 cycle engines, my mantra was this: Remove old gas, inspect/clean in-tank spun filter. Replace fuel lines with Tygon brand lines. Disassemble carb, clean, and tune jets to operate.
In your case, this may offer a shortcut: Remove adjustable jets and apply carb cleaner. Reinstall. Introduce carb cleaner into empty tank and fill with new fuel mix. Turn engine or push starter bulb to get fuel-cleaner mixture into carb and fuel lines. Let sit overnight. Start and run up to operating range.
I'm going to share this for the home owners that try to adjust jets after maintenance or as a solution to poor operation. To assess what your original settings were, pre-repair, turn adjustments in until jet bottoms out while counting turns. Don't be a Hulk on this, the pointed jet ends are fragile and the seats are hard. You don't need a lot of pressure to seat them. Note: Many Mfgs are taking the fun out of this by incorporating plastic stops on the adjustable jets. I have clipped them off to get extra adjustability. Your call.
Good luck on your maintenance and repair!