can not get engine to idle runs on the hose ears about 1800 rpm's tried lynch and synch set timing to 21 degrees, i know with no back pressure it will run higher but not this much, thinking it must be carb problem. I was told that these engines idle off the #1 carb but that doesn't make sense how would the other cylinders be lubricated also heard the float level could cause this, checked carb bowls all look clean don, t know what else to try any ideas would be appreciated thanks.
