Not to minimize your issue - it would appear prudent to at least run through a basic checklist of what to do with a no-start.
The attached deals with unexpected shut-down (not exactly your case) but running through this list sure narrows source of issue.
http://www.moyerphoto.com/moyermarineNL/2-1-14.html
A few other basics is to make sure choke fully engages (can be examined by removing flame arestor).