using real 2 stroke oil is a must
Yep Im a member of moped army same username most likely havent posted for a few years.
They dont give you too much crap.
If you put up an idea some will say its silly
but a lot more will see the good
go to Convert your bike to*A Motorcycle in 1 Afternoon. - Home and click on installation instructions. There you will find step by step photos and videos on how to install a engine. There are also fuel mix ratios and FAQ there. Plus many customer contributed pictures of their own photos after installing it.
The small engine kits are a blast to ride....they can be a little difficult to install but it depends on the bike you are using and the tools / mechanical skills you have.
Once finished tho they are a lot of fun to ride.
One of the best modifications you can make is to install a smaller rear sprocket (reduces cruise engine RPMs and increases top end speed).
Kingssalesandservice.com makes Super Sprockets for motorized bikes (they can also make custom sprockets for most any application).