ThunderMax PN#309-366 - GenII V-Rod User Manual
Page 3

309-466 Installation / Setup Guide V2013.09.16
3
Plug the 4-pin AutoTune
connector into the gray data
port connector. It is
through the data port that
data from
the AutoTune
module is transferred to the
ThunderMax.
Locate the gray 4-pin data link
port connector near the frame
neck behind the louvered side
panels (left side on ’02-’05, right
side on ’06-up models) and
remove the rubber plug from it.
Route the rear oxygen
sensor harness between
the engine and fuel tank
under the seat. The
AutoTune harness for the
rear cylinder sensor is
shorter and can be easily
identified by black tracers
on all of its wires; both
plugs are clearly marked for
front/rear use.
Install the AutoTune
module flat side up, wires
toward rear. Slip loose wire
Loosely loop a wire tie
through each slot in the
supplied
AutoTune
module.
poorly!
Tie the harnesses
Route the harness along
the upper left frame rail
and plug the oxygen
sensor harness into the
AutoTune harness plug
marked “REAR”.
It is
very important to install
these correctly or the
engine
will
perform
to the frame or existing
ties over front airbox cover
mounting tabs, pull wire ties
tight so that the AutoTune
module is mounted to the
bottom of the bracket as
shown.
Route the oxygen sensor
harness from the front pipe
along the
left
frame
downtube, across to the
right side of the frame in
front of the cylinder head
cover, away from the
engine and along the frame
when possible.
component harnesses, taking care to avoid contact with
any vibrating component that may chaff the sheathing or
wires. Some disassembly of bike components may be
required for best harness routing.
Some riders prefer to remove the airbox lid altogether for
increased airflow to the intake. If you chose to leave it
on, the “snout” must be removed due to the AutoTune
module mounting. W ith a hacksaw blade or similar
cutting tool, cut the airbox snout off the airbox lid.
Reinstall the airbox and frame louvered covers.
Plug
the
oxygen sensor
harness into the AutoTune
harness plug
marked
“FRONT”. Avoid routing
harnesses
where
engine
movement or moving parts
can contact and damage
the harnesses or connector
plugs.