
4
6- If exhaust mounting anges are installed on head pipes, make sure the ange is above the weld-in boss before it is welded in place.
7- Weld the boss in place using stainless-steel ller rod. When it cools, run an M 18x1.5 tap through it to verify that none of the threads were
damaged or distorted. See Picture 4, below.
8- Install the oxygen sensor in each pipe and torque it to 30-44 ft-lbs. See Picture 5, below.
NOTE:
New oxygen sensors come with a high-temperature lube on the threads. Be sure to use a high-temperature lubricant that is safe for oxygen sensor
use on the threads of oxygen sensors being re-used.
9- Install the header pipes on the motorcycle. Next, route the S&S® wiring harness to allow the Deutsch® connectors (Picture 6, below) for the
oxygen sensors to be in position to be plugged in. Verify that the S&S harness will not rub against any moving or hot parts. When you connect
the Deutsch connector for each oxygen sensor to the harness plugs, listen for an audible click to conrm the connection. Wire tie the harness
to the frame to ensure no contact will occur when the bike is being ridden but still allow enough slack for engine movement.
NOTE: The front oxygen sensor is connected to the longer lead of the S&S harness. See wiring diagram on last page for more information.
Picture 4
Picture 5
Picture 6
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