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BR800 blower, runs perfectly but can not shut off with kill switch. I used ohm meter to verify both the yellow and black wires in the handle have continuity. I also cleaned the contact point on the kill wire inside the handle. I suspected bad ground b/c before cleaning the contact point there was no response from the kill switch. After cleaning, it will cause the engine to sputter just a bit but not die. But by using the choke and kill switch it will die. Before, I would have to full choke and rev the throttle to kill it. Kill switch had ZERO effect on it. Is there such a thing as a coil that will not ground? Or is there something else I'm overlooking?
All suggestions are greatly appreciated.
Thanks!

Yes ignition coil kill circuit do go bad. To test is simply to use a jumper from the kill terminal to engine metal crankcase. If when jumping this way the engine does not die then it is the coil. If it dies then it is in the wiring or kill switch contacts.

You can also for zero ohms between the coil kill terminal and metal crankcase when switch is held in the kill position.

StarTech said:

Yes ignition coil kill circuit do go bad. To test is simply to use a jumper from the kill terminal to engine metal crankcase. If when jumping this way the engine does not die then it is the coil. If it dies then it is in the wiring or kill switch contacts.

You can also for zero ohms between the coil kill terminal and metal crankcase when switch is held in the kill position.

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As I was thinking after I posted, I realized that I had not tried a direct kill wire. I was too busy scratching my head wondering if there was such a thing as a coil that won't die!
I appreciate the reply. I'll go out to the shop and try that in just a bit then update. Thanks!

LawnWizard said:

As I was thinking after I posted, I realized that I had not tried a direct kill wire. I was too busy scratching my head wondering if there was such a thing as a coil that won't die!
I appreciate the reply. I'll go out to the shop and try that in just a bit then update. Thanks!

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I found it. It was corrosion on the female spade connector on the kill wire and terminal. As soon as I tried to separate the two I knew it was the problem. Some light sanding and a dab of dielectric grease and it's like new. Thanks for the help!