Chainsaw Repair

I knew CS stood for chain saw. That what it says on the recoil cover. Is it reallly worth putting money in it being it is missing parts and have no clue why it was parted out? Oh another thing it has limiter caps on the carb so that makes it a EPA model then? I am thinking of maybe ditching all my jonsereds becouse I seen that the prices of the part have jumped a lot. Like the pistion and cylinder. Plus who knows how long they are going around being that they are with a different disturber now. All the dealers around no longer sell them. It is either echo or dolmar they changed to now. Let me know your thoughts on this.

Thanks
Jason