  The two-body decays of the extra neutral boson Z_2 predicted by the minimal
331 model are analyzed. At the three-level it can decay into standard model
particles as well as exotic quarks and the new gauge bosons predicted by the
model. The decays into a lepton pair are strongly suppressed, with $Br(Z_2 -->
l^+l^-) ~ 10^{-2}$ and $Br(Z_2 --> \bar{\nu}_l \nu) ~ 10^{-3}$. In the bosonic
sector, Z_2 would decay mainly into a pair of bilepton gauge bosons, with a
branching ratio below the 0.1 level. The Z_2 boson has thus a leptophobic and
bileptophobic nature and it would decay dominantly into quark pairs. The
anomaly-induced decays $Z_2 --> Z_1\gamma$ and $Z_2 --> Z_1Z_1$, which occurs
at the one-loop level are studied. It is found that $Br(Z_2 --> Z_1\gamma) ~
10^{-9}$ and $Br(Z_2 --> Z_1Z_1) ~ 10^{-6}$ at most. As for the $Z_2 -->
W^+W^-$ and $Z_2 --> Z_1H$ decays, with H a relatively light Higgs boson, they
are induced via Z'-Z mixing. It is obtained that $Br(Z_2 --> W^+W^-) ~ 10^{-2}$
and $Br (Z_2 --> Z_1H) ~ 10^{-5}$. We also examine the flavor changing neutral
current decays $Z_2 --> tc$ and $Z_2 --> tu$, which may have branching
fractions as large as $10^{-3}$ and $10^{-5}$, respectively, and thus may be of
phenomenological interest.
