hi eddy,
the fuel height can effect the mixture settings,
also the pilot and air jets, they arent blocked
partially blocked,
u could also check that the off idle ports (the 3 little holes in the carb throat)
isnt blocked/partially blocked also.
the rh has the later carbs errol so there not known to break
off like the eraly ones, but in saying that it wont hurt to check,
what colour flame is showing in the 2nd pot?