Jon H Posted February 9 Share Posted February 9 Computer says no to your video 😞 Quote Link to comment Share on other sites More sharing options...
extra slim Posted February 9 Author Share Posted February 9 OS 26 FS inverted  very short, but you can see the setup and hear Quote Link to comment Share on other sites More sharing options...
RottenRow Posted February 9 Share Posted February 9 I notice that your fuel tank is half empty. Or half full..... Â Did you try this with a full tank of fuel, which would put the fuel height above the carb by a small amount? Â If not it's worth checking before putting everything back into the model. Â Brian. 1 Quote Link to comment Share on other sites More sharing options...
Robin Colbourne Posted February 18 Share Posted February 18 Extra Slim, you mentioned that the tank is right on the bottom of the fuselage. If this means that it has no foam between it and the airframe then there is a possibility that the fuel is frothing with the vibration being transmitted to it. Quote Link to comment Share on other sites More sharing options...
extra slim Posted February 19 Author Share Posted February 19 Hello all. I think I am there. It seems lower nitro and a new ring (changed this week), has given me a tick over of about 7.5/10, which is adequately doable. The ring will probably bed in and improve further, plus in the air will no doubt alter things a little. Thanks all. 1 Quote Link to comment Share on other sites More sharing options...
Jon H Posted February 19 Share Posted February 19 What sort of idle rpm are you seeing slim? These little engines do not always run as slow as bigger ones. I think my 26fs is happy around 2500 but i cant remember off the top of my head. Quote Link to comment Share on other sites More sharing options...
extra slim Posted February 19 Author Share Posted February 19 she's just over 3K Jon, and then after about 10 seconds, settles around 3K, and then will eventually still pool up if I dropped the trim a notch and left it any lower.. on a twin needle, it would indicate the "hanging on" is a symptom of being too lean on the bottom end, but since this is an airbleed, it doesnt apply. so not perfect, but not too bad.. onwards and upwards. I did get chance to try tanks of 20% and 10% nitro and it was noticeably much better on the 10%, despite not much movement on the main needle, would probably be better again on 5%, but no one has any in the club (I might get some next time I order), so good shout Jon. You learn something new everyday. Thanks again. Quote Link to comment Share on other sites More sharing options...
Jon H Posted February 19 Share Posted February 19 If you didnt move the needle much between 20% and 10 its likely still pretty rich, and this may explain the idle issue. Make sure the main needle is tuned for peak performance and dont be shy leaning it off. Even if you go too far and it suffers a lean cut you wont damage anything. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.