I don't know anything about the K-Jets, but on a D-jet, I would look at the cold start injector if it wouldn't start after sitting for a few days. It is sort of like the choke on an old car. I think the K-Jet has a cold start valve, so perhaps look at that ?

If it cuts out once started and you have to work the accelerator, then maybe it is running too lean at idle. I don't know how you adjust that on a K-Jet, but if you go down to the K-jet section on the link Rowdie provided, it may be there.

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Graham
85 300D,72 350SL, 98 E320, Outback 2.5