ORIGINAL: jaka
Hi!
You should not use 80/20 fuel!!!! The engine can tolerate it but will not be as easy to set as if you used more nitro!
5-15% nitro is imperative to use for good behavior! Enya 3 or OS 8 glowplug are good ones but most warm or medium glow plugs will work!
A suitable tank size is 240cc (8oz) not bigger!!! And mounted according to the "tank-mounting-rule"!
I'd respectfully disagree with the FAI fuel comment there. The original paperwork that came with my Enya say they will run reliably with 0, 5 and 10-20% nitro. this paperwork also lists engines from 049 up to the 60X......
My Guess - Too lean - an experience flier advised me to wind out the HS needle 5 turns and then lean it out (on my Enya 60X, air bleed carb, running 10% Nitro.... similar problems to RTD)