Kill Switch/Raceing

[merrile]

I am working on a 66 ski twin 33 hp enviride.

First I am unsure where to start as far as the kill switch looking at diagrams are only confusing me. I am hoping someone can shed some light with the color codes.

I am also told of a vacum line systems that keeps the engine from racing in a no load condition. Based upon the below pictures am I in the correct area looking for this system?


thanks in advance

 

[F_R]

Re: Kill Switch/Raceing

Looks like you have it figured out in this picture.

White wire from starter solenoid goes to corner of vacuum switch.
Another white wire goes from same corner, up to the safety switch.
Black wire coming from magneto goes to the center terminal of vacuum switch.
Another black wire from same center terminal leads to one of the "M" terminals on the ignition switch.

 

[merrile]

Re: Kill Switch/Raceing

ok, so neither of those are hooked up to the kill switch, can you talk me through doing the kill switch? Currently there is not one wired which I would assume is causeing the vacum switch to not stop it from raceing. I am not currently using and ignition key that has the M, I will be going with the standard kill button.

 

[F_R]

Re: Kill Switch/Raceing

I guess I'm confused as to exactly what you are asking. By kill switch, are you meaning a way to turn the motor off? In your May 9 post you said you could kill it by pulling the choke or hitting the kill switch. That suggests that you already have an operational kill switch.

OK, let's start at the beginning. A kill switch, whether it be a stop button or a key switch, works by electrically connecting two wires together when you push the button or turn the key off. You should have two black wires coming from the bottom of the magneto plate. One goes directly to the kill switch. The other goes to the center terminal of the vacuum cut-out, then extends to the other side of the kill switch. So, you now have two wires coming out of the bottom of the mag plate, both going to the kill switch---one directly and one by way of the vacuum cut-out. Turning the key off or pushing the button electrically connects those wires together, stopping the motor.

Now, for the white wire. I see that one is connected between the vacuum switch and the safety switch. That is correct. The other one connects between the vacuum switch and one of the two small terminals on the starter solenoid. That connection is to prevent you from starting the motor with the throttle set to a "fast" position. Since you say it is not connected, I can read between the lines and suspect somebody has put a car solenoid in there. That will burn up the safety switch in a heartbeat, and is probably why they disconnected it.

If I am correct and they have installed a car solenoid, then you won't have the safety feature--it will start in any throttle position. Furthermore, if it has burned up the safety switch, the vacuum cut-out switch won't function and the motor will runaway.

Hope this lengthy explaination helps.