Hi Guys. I need help setting up the chain on this scooter. I got the scooter with a 45 tooth rear sprocket and I would like to know what whats a good gear ratio for this scooter using a 43cc chainsaw motor and weighing 190 lbs? I would like it to have alot of top end power but not to weak down low. I also need to know whats the best way to connect the chain the the chainsaw? Can I get a new centrifugal clutch cover or do I got the mod mine?