I got one of those "80cc" RAW motor kits and was wondering how do I use the oversized front motor mount? I got a Schwinn beach cruiser that has a large down tube that doesn't fit the standard front mount.
Welcome to the forum. You might want to introduce yourself in the "Introduce yourself" section.
Then use the search feature at the top of the page. This is a subject that has been discussed at length. Try clicking here> http://motorbicycling.com/f6/motorized-bicycle-oversized-tubing-solved-6427.html
This should get you started. Good luck.
Tom