I have 3 K&B's .61 model #6170 and I would like to use it on a competition held here in Brazil.
The point is that acording to the competitions rules we can use a K&B #6170 but it must be totally original including the muffler. I oppened all my K&B's and noted that the parts inside the mufflers are different from one to another engine.
- The first one has kind of a big baffle holded by a compressed spring and a brass cap;
- The second one has o small baffle at the end of the muffler, just before an aluminiun cap;
- The third one has nothing but the commom screw, this one has a plastic cap.
In fact, I would like a description ( if you a have a photo or a draw would be better) of the original configuration.
Thanks (It's urgent!!)