Aircooled Mechanical Tech
I've just rebuilt the carb due it leaking (solex 34 pict3 )on my 1600TP engine and whilst trying to adjust the idle I noticed that the inlet manifold elbow on 3 & 4 cylinders was so hot I couldn't keep my hand on it, whilst the other side on 1 & 2 was cold to the touch.
I pulled the plugs out...