  Charge density wave (CDW) instability drastically affects the surface
electron spectrum of a Weyl semimetal. We show that in the CDW phase, the Fermi
arcs reconnect into either closed Fermi loops or Frieze patterns traversing the
reconstructed surface mini-Brillouin zone. For the closed reconnection
topology, the application of an out-of-plane magnetic field leads to a
cyclotron motion of the surface electrons. We determine the cyclotron frequency
as a function of the electron energy and the magnitude of the CDW gap $\Delta$
for various orientations of the Fermi arcs. For weak coupling, the period of
cyclotron motion is dominated by the time of traversal of the arc reconnection
regions and is inversely proportional to $\Delta$.
