I have some trouble with the engine..At 286.000km the main gasket blew and I
got a "new" engine in. After that a lot of trouble started:
1) The idle speed is 1500 rpm (warm, autochoke inaktive) - the idle screw
put in zero position. The idle speed on the old engine was 800-900 rpm.
2) The engine lacks power below 2500 rpm. This result in "humping" when I
shift from 1. gear to 2.gear. The only way to avoid this is to run the
engine upto 4500 rpm and the shift.
What could this be ? There does not seem to be any vacume leaks. The valvs
are ticking a bit. Could it be the fule mixture ?