FrankR wrote:I think you have two problems going on there.
That violent kicking at speed is the clutch dog. It is coming out of gear, rotating half a revolution and slamming back in gear. It feels like you ran over something when it does that, and does it over and over again. The worse the wear, the more often it does it. Eventually, it will beat itself to death if you don't fix it.
The slow speed (or in neutral) "miss" more than likely is what we call a "lean sneeze". Giving the slow speed knob on the carburetor a tweak to the left will often times cure that.
its what I am wondering, clutch dog will be easy to diagnose and fix once I am out of the water, the other I wondered if it was also too lean, this engine is quite tight so I know its not leaning out around the crank shaft. id really like a prop wheel so I can try to diagnose this at home. I have also wondered if I am out of adjustment on the shifter, I am going to go look into that now. I would absolutely describe the high end issue as feeling like I ran over something and here in Squam lake, thats always a possibility. when god got done making lakes he put the extra boulders here, so it is especially alarming