  We study particle acceleration and radiative processes in Blazar jets under
recurring conditions set by gravitational perturbations in supermassive binary
systems. We consider the action from a companion orbiting a primary black hole
of $\sim 10^8 \, M_{\odot}$, and perturbing its relativistic jet. We discuss
how such conditions induce repetitive magneto-hydrodynamic stresses along the
jet, and affect its inner electron acceleration and radiative processes.
Specifically, we study how macroscopic perturbations related to increased jet
"magnetization" end up into higher radiative outputs in the optical, X-ray and
gamma-ray bands. We find first an increase in magnetic field strength as gauged
in the optical band from the Synchrotron emission of electrons accelerated in
kinetic processes stimulated by reconnecting magnetic lines. The energetic
electrons then proceed to up-scatter the Synchrotron photons to GeV energies
after the canonical Synchrotron-Self Compton radiation process. Our model
implies a specific, recurring pattern in the optical to gamma-ray emissions,
made of high peaks and wide troughs. Progressing accelerations caused by
spreading reconnections will produce an additional Synchrotron keV component.
Such outbursts provide a diagnostics for enhanced acceleration of electrons
which can up-scatter photons into the TeV range. We discuss how our model
applies to the BL Lac object PG 1553+113, arguably the best candidate to now
for high amplitude, recurring modulations in its gamma-ray emissions. We also
consider other BL Lacs showing correlated keV - TeV radiations such as Mrk 421.
