I found out what the problem was with my Puch. It was a clogged exhaust
pipe. After troubleshooting for hours, I realized that the person who owned
it before me probably never maintained it, and in twenty years there would
be a lot of carbon build-up. When I took off the exhaust pipe, it weighed
about forty pounds. Then I heated up the thing inside it with a blow
torch(after taking it out of the exhaust pipe), and knocked out all of the
carbon and oil build-up. When I put it back on the bike, it ran like it was
I then went to my friend's house and he also has a Puch. For the heck of
it, we took off the exhaust pipe and it also weighed a lot. We heated it up,
knocked out the carbon and oil, and it went about ten miles per hour faster.
From my observation, this must be a common moped problem, especially
considering that most probably havn't been serviced since they were bought
(usually the late seventies).
If you own a moped, 1.) take off the exhaust pipe, 2.) take out that
thing in the center, 3.) heat it up to almost red hot with a blow torch
while handling it with some sort of pliers and, 4.) knock out the carbon
deposits with a screw driver or something.
By the way, if you feel like waking up all the neighbors take it for a
spin without the muffler (WEAR EARPLUGS).
Thankyou for all of the help and advice,