if you are new to the werks motors, one thing to look out for...
Make sure you have a enough clearance between the flywheel and the carb. I run hotbodies or mugen flywheels on my werks, and i have to add spacers behind the collet. Make sure to run at least ONE small washer against the bearing, so that it only touched the inner race of the bearing(i may be off on my terminology on the bearing)
depending on the flywheel it may rub the carb.
i had a piece of straw get stuck in it once and flame me out, it was that tight of a gap.