Originally Posted by
1967brutus
Bit amazed about the "idle mixture thing" though. So far, my experience has always been "as lean as i can get it", which for the singles is not so much an issue, but the twin and radial, due to their residual uneven mixture distribution can be a bit tricky to find, because one cylinder remains a bit rich and tending to load up while another tends to lean out and stop firing. So far all has been doable and even reliable (both Radial and twin have never quit in the air OR on the ground) but never as easy as a single. Also never been really problematic.
Its not so much a problem Bert as it never "quit in the air" on me, just an observation - I just noticed it while tuning the idle on the bench. Once the engine warmed up my idle seemed a little thick, so I leaned it and it cleaned up - then on an "extended" idle it would suddenly die. had to go back to the slightly richer setting.. Not really noticeable in the air as I think the airflow pulls the temp down quickly and gets it in the happy zone. With the smaller venturi I am back on the bottom for the entire fuel curve again - I will try a smaller jet and see how it works. - but its running great now.