Right Stuart...

I've checked that nothing in that linkage is jammed or stuck. AND it
stopped happening after a cooldown.and restart but not after a momentary
shutdown.

I have the Digifant Pro Training manual on my phone. That's logic. I like
Scotts' idle control unit idea . Pro Training has s page on that.

3000 RPM with no load for more than a few seconds IS pretty disconcerting.

John
'

On Thu, Oct 10, 2013 at 9:35 PM, Stuart MacMillan <stuartmacm@gmail.com>wrote:

> Definitely follow logical troubleshooting procedure, which means check the
> simple stuff first.  That's always the mechanical things you can see and
> feel.  Electrons are only detected by magic.
>
> I've had this happen and it was something that dropped on the throttle
> lever
> and jammed it.  Broken cruise control cable I think. The good thing is the
> ECU will cut off the injectors before the engine self-destructs!
>
> At least that's what happened in my case, but at the time I thought I
> destroyed it.
>
> Stuart
>