A general comment about Zama rebuild kits. If you are rebuilding a C3M, same concept appies. Ditto on C1Q etc...
You can use almost any C3A rebuild kit variation IF you don't use the metering string, and sometimes the welch plugs are different. Zama supplies the spring which is one reason they almost have a "kit per carb variation"... The GND kits just have the 2 diaphragms and gaskets.
For C3A I just buy RB31 kits and throw out what I don't use, and almost never use the spring, almost.
If you buy the Stihl kit, it's expensive, but all parts are are guaranteed to work. You just don' t need all of them, and for 1/4 of the money, use your old spring...
Do springs "wear out"? nope... so why do they supply all those little parts you don't need? 'cos they get lost!
This box of misc kit parts is PART of about 5 years of shop collection, and we stopped "collecting" a while back - what didn't get used! Every now and then there is a gem in here.. lot of waste in Walbro WAT kits! What you can't really see is that this pile is over 4 inches thick in the center! Wonder what I'd get for it on Ebay..
