I would think so, I normally use cellulose thinners to clean the jets as it will shift the crap in the jets. If you want to poke something through the jets to clear them or dislodge the crap, use brass wire as it will not damage the jets, since they are also brass, some will cringe as the thought of poking something through the jets, but brass on brass is fine.
If the bike is left on the side stand for a long period then the first carb to be effected by fuel evaporation will be 4 and then 3.