Hello to all again. Got a couple questions for the 2-stroke educated. I know how they work but this 4cycling is a mystery to me. I have an 8 hp outboard 2 stroke that stutters at mid range rpm. Now that I have a cheap 2 smoke to tinker with, I now think it's 4 cycling. But so is my bike engine. At idle it runs good, with throttle open it runs perfect with power, at mid range just keeping it running it bucks and 4 cycles and jerks... open throttle it smooths out. How do I fix this?