Chainsaw Repair

I have one plastic XL2 with a fixed H-side HDC.  Also have an early metal XL2 with an HDC that has both needles.  The evil crusty XL2 that I recently worked on as a favor for a friend also had the fully adjustable HDC.  I have a couple more XL2/Super2 saws that I haven't yet checked to see which carb is on them. 

Damn things are multiplying.  The evil saw spent too much time in the shop.  I think it bred with the plastic XL2 that I've had for a while.  Suddenly I had 4 of the things here, plus a 240 (and a parts saw) 'cousin' to them.  I haven't spent a dime getting any of them.  They keep coming in as 'freebies'.  It's against my nature to turn down free saws, as that can close 'free saw' doors that may someday yield something good.....