Cubshee421 Posted January 4, 2015 Report Share Posted January 4, 2015 I have a 421 cub on 100LL the main and pilot are dailed. 160/48 The issue is if you rev it once its fine but if you rev it again it makes a bogging sound out of carbs. 39. Pwks DGH neddle in the middle. Do CEL wirk good on cubs. Shearer sb/oof Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted January 4, 2015 Report Share Posted January 4, 2015 If it boggs off idle or wants to die. Richen the needle position. If it is like a rich bogg as well as having to clean up smoke , lean needle position. DGH is often fine, 160 is usually about 3 to 5 jet sizes lean for our elevation at 1300 ft. Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted January 4, 2015 Report Share Posted January 4, 2015 I was just about to say that bitch is lean , that set up round me would be at least 172-178 range on a perfect chop but av gas does have a different gravity than my usual vp I'm no expert with and I'm not a big fan. Pilot usually 50-55 depending on porting and reeds, dgh usually tunes out fine for me but I have used cel on more dun able set ups Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted January 4, 2015 Report Share Posted January 4, 2015 Post a plug chop pic on that main Quote Link to comment Share on other sites More sharing options...
Cubshee421 Posted January 4, 2015 Author Report Share Posted January 4, 2015 Idk how to post pic I can text them to someone Quote Link to comment Share on other sites More sharing options...
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