kill switch

[J Headrick]

is it possible, and how, do i install a kill switch on my 55 evinrude fastwin

 

[bob-o p]

Re: kill switch

when you say kill switch you do mean one that connects to you correct?

 

[J Headrick]

Re: kill switch

the tiller handle is the way you turn the engine off now. my other one that was on my boat was a 66 fastwin. it had a toggle switch connected to it so it could be shutoff from the bow. still have toggle installed on bow, want to know if there is a way to connect it to this one.

 

[dkondelik]

Re: kill switch

J Headrick,<br /><br />Man,... you are tearin' it!<br />I've followed some of your posts and "boy-howdie", your gettin it done quick.<br /><br />To your question. Yup! you sure can. I don't have my manual infront of me so please double check your manual/ignition schematic.<br /><br />Again, check your manual. I think that your point BREAK (open) the path to ground. If your points BREAK the path to ground, tie your new switch between a good ground and the coil side of one of your set of points. Engaging the switch will tie the Lo Voltage side of the coil to ground then the coil cannot experience the di/dt (change in current with respect to time) that arrises when the circuit is opened. It is the di/dt that induces the voltage in the secondary,..and,...no di/dt, No SPark, No run.<br /><br />At the rate your going, you'll have it done before I finish typing this.<br /><br />Good Luck<br />HAVE FUN!<br /><br />EDIT> don't tie both sets of points to the same pole on a switch. That would short the primaries of the coils together. It might still run like that but I wouldn't risk it. Rather, try killing it by wiring one set of points thru the switch.

 

[Paul Moir]

Re: kill switch

This is just an attendum to what klondike7 had to say. If you want to be real clever and kill both sparks you can use diodes to isolate the coils. Since the pulses coming off the coil's primaries are negative (at least all the coils I have are this way), if you install diodes pointing (line on case, or positive side) towards the coils and joined at the other side, and connect the joined side to your kill switch, then closing the switch will ground both coils - <br /><br />Coil1 ------|<------|<br />Coil2 ------|<------|<br /> |---killswitch---|<br /> |<br /> Ground<br /><br />Hopefully that came out.<br />The diodes should be rated for at least 400 volts and prefferably 4 amps, although 1 amp diodes will work since the pulse duration is so short. Also, you should mock this up first and try it, since if your coils are wound differently you'd have to flip the diodes.