14-05-21, 08:24 AM
Cam chain won't be worn at 46k. I know of Gen 1s with 146k on the motor and still no cam chain wear. 
I don't see mention of you changing the O-rings on the float valve needle seats. That would be my first port of call for any low-speed rough-running issues, along with the pilot jets and their passageways.
I don't see mention of you changing the O-rings on the float valve needle seats. That would be my first port of call for any low-speed rough-running issues, along with the pilot jets and their passageways.