G'Day Crew,

I decided to start running in my brand new OS 52FS today. I am using 10% nitro with 20% SYNTHETIC oil ONLY. IS this ok? Or should I use some castor in it while running in.

The fact is I ran two 8oz tanks through it already, alternating 5 seconds lean and 10 seconds rich. The burnt fuel/oil that has come out of the engine is very dark almost black and the glow plug was very oily and very dark.

Have I damaged the engine already? My tach was indicating 15,100 rpm with a wooden 11x6 prop.

Thanks for your help.


Regards,


Rob