Make Your Moped Faster and Run Better

Make your moped faster by keeping it in great shape and clearing away any "cobwebs".

Steps

Check the exhaust if the moped is running sluggish. It might be filled with carbon residue. De-carbonizing it might increase the speed and power and it might even get you a {{safesubst:#invoke:convert|convert}} boost.
Remove the exhaust pipe.
Remove the muffler.
Loosen the clamp that connects the muffler to the exhaust.
Use a wire brush and clean out the inside of the muffler and exhaust. Make sure there aren't any clogs.
Take off the muffler and shake it to get any remaining residue out.
Check all carbon lines and connections, gas clamps and hoses as well as trying a less oilier mixture.

If nothing works also try to clean out your filters
If it's barely starting clean the carbon, it's not worth check for spark. Your spark plug might be weak.
If this doesn't work try cleaning out the carburetor and checking to make sure none of your brakes are rubbing.
A slightly dangerous way (use outside and at your own risk) to de-carbonize the muffler is to pour some diesel or paraffin into it and shake to coat internals. Put a piece of paper in the opening and let it soak. Set it on fire. Now add a small stream of oxygen from an oxygen/acetylene torch for a few minutes. This helps the carbon burn.
If all fails, look up a manual on-line or look in yours in the troubleshooting section

Don't touch the exhaust pipe or any other metal parts until they have had plenty of time to cool since the last time the bike was turned on.
Make sure that the carburetor is completely on the intake coming from cylinder properly, block free, airtight and secure!
Don't lose any pieces to the carburetor