ORIGINAL: grecospad
well i'm back home now and the results are:up at full throttle full tank it started ok ,took up rpm at about 10-15 of 30 sec stayed there,then down started ok until sec 3 lost rpm burped then died .i turned the screw with the spring clockwise (i hope i'm doing it ok) all over again up ok ,down burped at about sec 10.now it does not start and fuel goes back quicker .ideas?
With an LA engine turning the low speed screw CLOCKWISE, will make the mixture RICHER.
The reverse is true of the high speed needle.
That the fuel siphons back into the fuel tank indicates that the high speed mixture is too rich as well.
In effect you've OPENED the mixture screw to the point that the fuel flows ( back ) far too freely.
When correctly set it should flow back slowly.