The carb on these are Zama M-7. Virginia might have found a couple kits and a couple air filters for it. --- still lookin for stuff, like short bars, 10" or 8" would be better yet. They all came with 14" and for my use I only need 8 or 10.-- 12" would help some.
Most guys want to run a 2 foot bar just to cut a 4 or 6 inch limb! lol! NOT ME! Shorter bar puts less wear on the chains and bars plus they are not going to grab stuff on the back side of the branch you are cutting on.
I tend to do more cutting with the end of the bars out of habit since the bars are too long. I know thats a no- no but thats what I run into.

"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands."