interesting discussion on the black goo. My Saito FG-90R3 was spewing copious amounts of black goop but after about 2 - 3 hrs of running has decreased a lot.
The worst engines I have for that is my MVVS 30 (walbro) & DLE-111 (DLE carb), both leave a thick mess after flying all over the model and it is a pain to clean off. I will try what the other chap suggest with WD-40 then some kitchen spray cleaner.
Water Displacement #40 has many good uses!! Not just for Thikol missiles!
Having said that as I have a mix of older well run in engines and new ones I tend to just have one can of fuel I use in all of them and it runs Castrol TT mineral 2 stroke oil, 91 or 95 petrol @ 32:1. Note our octane rating here is different to you guys across the ditch.
95 is hard to find here, my local BP only has 91 or 98 and you have to watch you do not get an ethanol blend with the lower octanes here.
Rough approximation I stole from Dr Google:
USA 91 MON is similar to Australian 95 RON
USA 93 MON is similar to Australian 98 RON
USA 87 MON is similar to Australian 91 RON
cheers
me
Last edited by planenutzz; 03-09-2023 at 02:10 PM.