First of all how much slack r we talking about. Is it about a quarter turn on the throttle. Let me guess u notice it more when starting. And the bike allways shuts off when sitting in idle. If ur not paying attention to giving it a little throttle. And as far as the bogging. They tend to go thru that especially in break in period. It won't do it as much when motor is nice n hot.but let me give you some advice. Dont short cut the break in period. It's the most important part of anything u do to the motor. Dont run any faster than 15 or 20mph. No more than 20 minutes at a time and let it get ice cold after each ride . On the bottom of your second tank open it up let it rev up just a little bit for short bursts it will elongate your piston extension and give you more power in the long run
