Coleman at200-b

[spencer64]

New unit has 50 miles on it and it has had this annoying sputter since day one. It will sputter around quarter throttle(8-12mph). Things I have done;
-new replacement carb
-air filter cone style
-ngk spark plug
-112 main jet
-raised the needle
- changed octane in fuel

All these things and nothing has taken it away slightly better but not great.

Runs super strong top end and initial take off but that cruise speed is annoying.