its one of those land rider automatic bikes
and a 50 cc engine but i forget where its from.
ive heard about doing somthing with the exaust to get more power do you know anything more about that?
just drill more holes in the baffle, and even two more holes in the end that goes in first. You will compromise noise for power but you can be the judge of that. I haven't done this my self but I have heard there is a pretty noticeable increase in power if you extend the skinny part of the tip of the exhaust to 6-8 inches. looks weird but might work! also upgrade spark plug wire to 7 mm. upgrade spark plug boot. There is a 20 dollar "boost bottle" I've heard smoothes out acceleration, decreases sputtering and takes car of gas swamping the air filter. There are a few other things but Conan O'Brien is on. ha!
My mother has one of those landrider bikes. I rode it before and found it kinda strange given that it shifts itself. Must be kind of nice on an MB though since it makes stuff less complicated while riding.