  The MEG II experiment at Paul Scherrer Institut in Switzerland will search
for the lepton flavour violating muon decay, $\mu^+\to e^+\gamma$, with a
sensitivity of $4\times10^{-14}$ improving the existing limit of an order of
magnitude. In 2016, we finished the construction of the MEG II Timing Counter,
the subdetector dedicated to the measurement of the positron emission time. The
first one-fourth of it was installed in the experimental area and we performed
a pilot run with the MEG~II beam of $7\times10^{7}\mu^+/$s. The timing
resolution reached the design value improving by a factor of two compared to
MEG.
