hello,

I've got a '91 k100LT naked 2 valve W/O ABS, and today, some time between walking into and coming out of the grocery store my k-bike developed a high idle with a slow return down from speed. when i got it home, i discovered that my bike had blown out one of the caps next to the throttle on top of the valve end. i have tried adjusting the idle screws, but to little avail. and i noticed a knock coming from the engine. I'm really at a loss here, any suggestions are very welcome! thanks

cody