I have seen a few things cause a "Sled Won't Shut Off" condition:
1. It is usually a bad ground or a broken ground wire
2. Moisture in the stator to wiring harness connector
3. Moisture in a kill switch or tether
4. CDI loses its internal ground path. I've seen more than a few 1998-1999 ZRT800-1000 CDI boxes lose their internal ground path and won't shut off
5. Bad key switch
6. A bad stator can cause a sled not to shut off. I have rewound several that fixed a "Won't shut off" issue.
1. It is usually a bad ground or a broken ground wire
2. Moisture in the stator to wiring harness connector
3. Moisture in a kill switch or tether
4. CDI loses its internal ground path. I've seen more than a few 1998-1999 ZRT800-1000 CDI boxes lose their internal ground path and won't shut off
5. Bad key switch
6. A bad stator can cause a sled not to shut off. I have rewound several that fixed a "Won't shut off" issue.