Originally Posted by
Raleighcopter
My os ft120-ii with airbleed carb doesn't have a barrel that moves sideways and the cylinders run basically the same. There's probably no difference from front cylinder to back because the fuel doesn't enter the cylinders through the crankcase. I don't believe the cylinder offset makes any difference.
i understand fuel not coming from the crankcase, but more about slightly different intake tube lengths and possibly the forward cylinder having more vacuum on the intake over the rear cylinder..im not overly fussed on the unevenness, also the engine hasn't had bugger all run time to say its full run in either