Quick update, apart from a very slow HG leak the 850 continues to run amazingly well.
No overheating, as lively as these engines can be. Just so much cheap as chips fun to be had. True spirit of the Mini IMO !

Crankcase Pressure Cause Of Black Smoke
Started by
ads7
, Jan 05 2019 08:45 PM

Best Answer ads7 , 15 January 2019 - 09:17 PM
The engine was just steam cleaning itself. Refit the breather to the carb.
Done thanks Go to the full post

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