Magneto

[manxman]

How do I connect a magneto cut out to turn off the motor. There is nothing in my new wiring harness to cut off the ignition !

[Triton Thrasher]

Run a lead from it to a handlebar button that earths it to the bar when you press the button.

[Greybeard]

How do I connect a magneto cut out to turn off the motor. There is nothing in my new wiring harness to cut off the ignition !

There are some mag end caps with a stop button built in.

[manxman]

I was inquireing about how to connect to the mag. There is no connection on the cap.

[Greybeard]

I was inquireing about how to connect to the mag. There is no connection on the cap.

I think, most are like pic 1
Then there are these, in pic 2

I cannot find an image of one with the stop button in the cap.

[lawnmowerman]

I was inquireing about how to connect to the mag. There is no connection on the cap.

I think, most are like this: https://tinyurl.com/y2prox25
Then there are these: https://tinyurl.com/y5keh9vl

I cannot find an image of one with the stop button in the cap.

GB. I have one fitted as standard on my 1960 Matchless G12. Aluminium dome with a metal pushbutton in the middle.

Jim

[Triton Thrasher]

I was inquireing about how to connect to the mag. There is no connection on the cap.

Post a photo.

[groily]

Here's one, on a mag (off an AMC twin). But the stop button has been replaced by an insulated sleeve, brush and spring, for remote stop. Which may provide a useful clue if it's this sort in question. Originally, there was just a mushroom-headed bit of spring-loaded bar, that shorts out the live cb centre screw when you press it. Not handy, some say (including me), hence mods.

There are plain end covers, held by a pillar and clip, with no take-off for a wire or button even - but they usually live on K1Fs which people stop with the decompressor.

The three basic standard K2F versions have provision, with a wire off the plastic covers retained by pillar and clip, or via a stud connected to a brush and spring in the middle (big screw-on alloy type) - or there's the button sort.

On BSAs I think - but not completely sure - that the alloy dome was used on some twins in the early-to-mid 50s, before going to the clip-on plastic sort with wire off, and then finally to the screw-on alloy job towards the end.

[duTch]

 manxy- may I suggest an edit to the topic to specify something more specific ie; "Magneto End cover/cutout....?"

 Until you post a pic we can only guess, but for what it's worth in my case I did much as groily suggested, having soldered a washer over a short length of copper pipe inside plastic tube on the inner end, and a fibre washer over the copper (cut plastic flush and made copper protrude past cover to accommodate f-washer) outside, and a set screw up the end, works a treat

[muskrat]

G'day manxman.
After you work out the kill botton/switch and it won't work. Have a look at the other end of the mag is a screw. It houses the earth brush. If this isn't right you won't be able to kill the motor (unless you stall it).
This was the first problem I had with my plunger 38 years ago.
Cheers

[Slymo]

No earth brush is more serious that as the mag armature will earth via the bearings which will gently spark erode.

[muskrat]

^^^ bugged if mine would. A  Carbon out of a C size battery fixed it.
Cheers