Garmin GLADIATOR TR-1 Installation Setup Manual page 28

Honda
+ Gray (positive)
- Black (negative)
On most Hondas the pulses per revolution to 2. For the 6 cyl VTEK it must be set to 1 (Use Setup Code 267)
Mercury (not applicable to Verados)
+ Gray (positive)
- Black (negative)
On Optimax motors: if your reading is incorrect and fluctuates up and down you must change the tach output to analog by taking the
cowling off the motor, finding the 3 gray wires under the alternator (2 will be connected together), unplug those two and moving the
plug from one wire to the open connector on the 3rd wire.
Evinrude E-Tech
+ Gray (positive)
- Black (negative)
Suzuki Outboards, Except 300HP
+ Yellow (positive)
- Black (negative)
Suzuki Outboards 300HP
Please contact product support
Tachometry Connections
28