Figure 7
Figure 8
1. If the oxygen sensor is being installed directly into the exhaust manifold, the manifold will have to be drilled and tapped for
the oxygen sensor threads. The location for the oxygen sensor should be chosen very carefully. The sensor must be
located in an area that can be drilled without passing through any of the manifold water jackets. The oxygen sensor must
be kept dry for proper operation and should not pass through any water passages to prevent any water leakage. Drill a hole
in the location picked for the sensor using a 5/8 inch drill size.
2. Tap the hole using a m18 x 1.5-5H metric tap.
3. Install the oxygen sensor into the threaded hole and tighten securely. Care should be taken not to over tighten the sensor
when aluminum manifolds have been used. It is a good idea to add anti-seize to the threads to aid if oxygen sensor
removal is necessary.
10.0 MOUNTING THE ELECTRONIC CONTROL UNIT (ECU):
DANGER! ALWAYS DISCONNECT YOUR BOATS BATTERY BEFORE PERFORMING ANY WORK ON THE ELECTRICAL
OR FUEL SYSTEM. FAILURE TO DO SO MAY PRODUCE SPARKS, CAUSING A FIRE OR EXPLOSION,
RESULTING IN PROPERTY DAMAGE, PERSONAL INJURY, AND/OR DEATH.
WARNING! Do not open the ECU. The digital electronics contained within this ECU are sensitive to static electricity.
Opening this ECU WILL VOID THE WARRANTY.
