hi guys
i own a ski boat which has a newly acquired mercury 135 blackmax. i originally had a merc 175 which went kaput.
when i swapped the motors over i found out that there were a few funny things going on with the wiring, firstly the main harness to both motors were the same but all the wiring was different. i couldnt get the 135 motor to turn over, so i swapped all the starter solenoids (which included the harness connection) from the 175 to the 135 and it started no problems.
when i used the 135 harness originally the tach and water psi gauge would illuminate with the key off which was a little weird, and now with the 175
harness on the 135 there is no illumination of the gauges at all and the tach and psi gauge have stopped working.
so rather than f around with the current loom i have decided to wire them directly to the motor for signal and power. power is no problem to tap, i will put a switch on the power wire to cut power so it can be switched off.
im really struggling to find where i can pick up the tach signal directly from the motor, as the manual diagrams only tell me the signal wire on the loom and not on the motor.
hope you gurus can help me out
i own a ski boat which has a newly acquired mercury 135 blackmax. i originally had a merc 175 which went kaput.
when i swapped the motors over i found out that there were a few funny things going on with the wiring, firstly the main harness to both motors were the same but all the wiring was different. i couldnt get the 135 motor to turn over, so i swapped all the starter solenoids (which included the harness connection) from the 175 to the 135 and it started no problems.
when i used the 135 harness originally the tach and water psi gauge would illuminate with the key off which was a little weird, and now with the 175
harness on the 135 there is no illumination of the gauges at all and the tach and psi gauge have stopped working.
so rather than f around with the current loom i have decided to wire them directly to the motor for signal and power. power is no problem to tap, i will put a switch on the power wire to cut power so it can be switched off.
im really struggling to find where i can pick up the tach signal directly from the motor, as the manual diagrams only tell me the signal wire on the loom and not on the motor.
hope you gurus can help me out