I have a craftsmen gas chainsaw model no.358.356091. It has ...

I have a craftsmen gas chainsaw model no.358.356091. It has the three screws on the side. I believe they are for low speed ,high speed adj. and regular idle adj. The saw ran good until my brother thought he would start messing with the adjustments to get it to run better, now its so off I can barely get it to start but cant get it to run long enough to make any adjustments while its running. I was wondering if anyone knew about how many turns on the screw adjustments from fully closed would be a good place to start from so I could atleast keep it running long enough to fine tune it? I would appreitate any comments on this.

i think its one and half turns or less to start. when it idles the chain should not turn.

Thanks for the suggestion I tried setting them at one and a half turns from closed and couldn't get it to start and run.