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JimL5150

New Member
Dec 31, 2012
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sonora,ca
Hey Fellas I am new here and need a hand. I am confused about the instalation of the cdi/kill switch. from the engine I have blue and black and white. Blue and black from cdi I get that. Then I got green and yellow with a red stripe from the kill switch. Im thinkin white to yellow and green to ground.
this is my first time and I dont want to cook anything. Little help??:-||
 
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pedron

New Member
Dec 31, 2012
3
0
0
Puerto Rico
i dont have a kill switch ,and i dont know about that but i think that it would be more pretty and more easy to stop your motor using the choke.. hope this helps you
 
2door

2door

Moderator
Staff member
Sep 15, 2008
16,302
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Littleton, Colorado
JimL5150 said:
Hey Fellas I am new here and need a hand. I am confused about the instalation of the cdi/kill switch. from the engine I have blue and black and white. Blue and black from cdi I get that. Then I got green and yellow with a red stripe from the kill switch. Im thinkin white to yellow and green to ground.
this is my first time and I dont want to cook anything. Little help??:-||
Click to expand...
Welcome to the forum. We're always glad to help but you should also be aware of the search feature that will probably offer you all the advice you could ask for. Just type in a word or phrase and select from the menu provided. Here's an example > http://motorbicycling.com/showthread.php?t=11550

As for your wiring issue: Wire blue to blue, black to black, wrap and insulate the white wire so it can not come in contact with any metal part. (many of us remove it completely)

The kill switch is simply a normally open momentary switch so wire colors do not matter. They should be spliced into the blue and black connections from the engine/CDI circuit.

Hope this helps.

Tom
 
Last edited:
2door

2door

Moderator
Staff member
Sep 15, 2008
16,302
175
63
Littleton, Colorado
pedron said:
i dont have a kill switch ,and i dont know about that but i think that it would be more pretty and more easy to stop your motor using the choke.. hope this helps you
Click to expand...
The kill switch is considered a safety device. Relying on the choke or clutch to stop the engine in an emergency situation could be dangerous. Stuck throttle, broken clutch cable or lever and a fast speed will call for a better way to shut down the engine.
We always recommend that the kill switch be wired in correctly and used.

Tom
 
Saddletramp1200

Saddletramp1200

Custom MB Buiilder
May 7, 2008
1,451
83
48
Houston, Texas
MY Carb stuck wide open a month ago. Without a KILL switch, I would have run into a Car. Brakes, Tires, Kill Switch, Helmet, 4 main food groups for riding an MB.(c)
 
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pedron

New Member
Dec 31, 2012
3
0
0
Puerto Rico
2door said:
The kill switch is considered a safety device. Relying on the choke or clutch to stop the engine in an emergency situation could be dangerous. Stuck throttle, broken clutch cable or lever and a fast speed will call for a better way to shut down the engine.
We always recommend that the kill switch be wired in correctly and used.

Tom
Click to expand...
well thats my way, my carb dont have filter and dont have the lever of choke, i simply put my finger on it and it stops the motor... i dont beleive on kill swich because i had a lot of problems with them , so i decided to eliminate that.. my MB is for racing porpuse so i dont use that... but the right way is using the kill switch
 
scotto-

scotto-

Custom 4-Stroke Bike Builder
Jun 3, 2010
6,505
24
38
Ridin' inSane Diego, CA.
An important thing to remember......a kill switch doesn't always kill the engine!

If your engine gets stuck with wide-open throttle, the kill switch may not kill the engine, so don't rely on it in an emergency situation. Do use it by all means but also apply the brakes and compression release if applicable. You can also try to pull the plug wire if possible but you may get a good shock in the process so don't panic.

Just some helpful hints to keep from getting hurt in a panic situation.
 
MotorBicycleRacing

MotorBicycleRacing

Well-Known Member
Jul 28, 2010
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SoCal Baby!!!
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scotto- said:
An important thing to remember......a kill switch doesn't always kill the engine!

If your engine gets stuck with wide-open throttle, the kill switch may not kill the engine, so don't rely on it in an emergency situation. Do use it by all means but also apply the brakes and compression release if applicable. You can also try to pull the plug wire if possible but you may get a good shock in the process so don't panic.

Just some helpful hints to keep from getting hurt in a panic situation.
Click to expand...
Good points, I hope that you are OK and didn't get hurt when your throttle got stuck.
 
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