If you mean I put the pistons with the slanted side facing towards the intake? No. The slanted side of the pistons face against the exhaust side. The steep side face the against the intake ports.
Should be right.
May be it did not start because fuel did not come to the carburetor and fill up the bowl properly? Or may be it did not start because the choke lever did not stay out? It’s cold here now, and I suppose the engine need full choke, but I’m not able to set it at full choke. It returns back to no choke as soon as I let the choke lever go from my fingers. I guess it needs a repair.