1978 mercury 6 inliner kill switch installation

[cuenta619]

this motor no have a safety kill switch
i'm order one to installed
but I do not know where to get the cables to interrupt the spark

thank advanced

 

[Chris1956]

There are two ways to kill spark on that motor. The first is to wire it like the blue mercury switch under the wrap cowling, and ground out the switchbox. The second is to interrupt the supply of +12VDC on the white wire from the ign accessory post to the motor. The latter method allows all the wiring to be under the dashboard, however, you need to open up the MerControl box and wire the kill switch in series to the white wire. Also, the kill switch needs to be the "break" kind which opens when the lanyard is pulled.

Why do you want such a switch for anyway?

 

[cuenta619]

There are two ways to kill spark on that motor. The first is to wire it like the blue mercury switch under the wrap cowling, and ground out the switchbox. The second is to interrupt the supply of +12VDC on the white wire from the ign accessory post to the motor. The latter method allows all the wiring to be under the dashboard, however, you need to open up the MerControl box and wire the kill switch in series to the white wire. Also, the kill switch needs to be the "break" kind which opens when the lanyard is pulled.
Is this the mercury switch?

Why do you want such a switch for anyway?

For safety and save a ticket lol.

 

[Chris1956]

Yes, that blue thing that looks like a condenser is the mercury switch. It will ground out the spark, if the motor is tilted too much.

When you say "save a ticket", does that mean a safety lanyard is required by law where you are?

 

[cuenta619]

Yes, that blue thing that looks like a condenser is the mercury switch. It will ground out the spark, if the motor is tilted too much.

When you say "save a ticket", does that mean a safety lanyard is required by law where you are?

Florida .
boat regulation required a safety kill switch

 

[Chris1956]

Florida Fascists.....no wait, the NY Attorneys likely caused this. I blame most stupid stuff on the NY Attorneys, and most of the time I am correct.

 

[cuenta619]

@Chris1956
I'm planning installed a water pressure gauge
What is the mounting thread size to cylinder block cover plug

 

[Chris1956]

I ended up using a brass tee to replace the plastic telltale elbow on the cylinderhead water jacket. I inserted the pressure gauge tube there. I would recommend you take the plastic elbow to the plumbing shop to match the size.....