OK, now that we know a little more about your engine here is what should be a part list
http://www.mecoa.com/kb/61/61-parts.htm
You need to decide if you have the ringed or ABC version. You should recall from your disassembly.

You can try your question on the K&B forum

http://www.modelengine.org/forum/vie...cc038e37b5e54f