1687846YP KIT-KEY SWITCH CONVERSION

[rmsnowco]

Removed parts. Black box uses 10 out of 12 wires

 

[StarTech]

Well the engine you have is carbureted.

The new switch should have only six wires. The accessories pin is the one the Carburetor fuel solenoid needs to be connected to. Pin 3 and 4 would need checking as I don't have one those switches on hand as to which is ground when the switch is off.

 

[rmsnowco]

 

[StarTech]

Cacn't there as Briggs has never responded to my PowerPortal request for wiring schematic.

 

[rmsnowco]

I will be checking the power to the fuel solenoid should the replacement conversion kit not fix the problem. Can't believe they would manufacture a lawn tractor that can't be washed. Should ship on July 14th.

 

[rmsnowco]

Found 12VDC at the fuel solenoid but it seems flaky as if the current is lacking (good old solid-state leakage and high input impedance digital meters). Can't feel or hear any response from the solenoid. Hesitant to cut the wires for a current measurement so I ordered a replacement. Oddly prices range from $150.00 to $8.95. I went for the $12.98 version from Amazon.

 

[StarTech]

Hopefully they have improved since the last batch I brought. Those either didn't work or fail within 6 months.

OEM are costly but are reliable usually. Aftermarket are mostly a miss.

 

[Hammermechanicman]

Found 12VDC at the fuel solenoid but it seems flaky as if the current is lacking (good old solid-state leakage and high input impedance digital meters). Can't feel or hear any response from the solenoid. Hesitant to cut the wires for a current measurement so I ordered a replacement. Oddly prices range from $150.00 to $8.95. I went for the $12.98 version from Amazon.

You really don't need to cut wires to try and do a current measurement. You can use a 12v 1157 headlight bulb that loads the circuit. Replace the solenoid in the circuit with the bulb. If it lights up bright you don't have a problem with enough current. You can also get a Loadpro meter lead set. They will load a circuit and find bad connections.

https://www.amazon.com/Electronic-Specialties-181-Fundamental-Troubleshooting/dp/B004IKO09K

 

[rmsnowco]

More confusing information. Pic labeled

1687846YP - CONVERSION KIT, PUSH BUTTON START TO KEY SWITCH START PUSH BUTTON START TO KEY SWITCH​

 

[rmsnowco]

More confusing information. Pic labeled

1687846YP - CONVERSION KIT, PUSH BUTTON START TO KEY SWITCH START PUSH BUTTON START TO KEY SWITCH​

I recently hosed my black box ignition module on a 2 yo Simplicity Broadmore. Local dealers said the part was back-ordered till November. Tracked down a radical conversion kit (1687846YP) that replaces the sealed module with a new start switch. Now engine cranks with spark but no power to the carburetor fuel solenoid—any ideas. I was thinking of pulling the solenoid and plugging the port.