Hello everyone. My friend has a problem. He has stock YQ50 and leovince tt exhaust with malosii red sponge in filter. He has problems with starting. It starts first kick, then shits dowm. Then he need to get.the spark plug out, clean it and again kicks it, turns on, then again out clean and again. He says that the spark plus is dry not wet and not lean. What could be the rpoblem? Thanks