I have done everything i can possibly think of. new rings, ive honed it out, all new gaskets, new plugs went throught the carb with a fine toothed comb. it has spark, compression, and its getting gas, i cant even get it to fire when i spray that quick fire down the carb, or even in the cylinders, if anyone coudl helpo me out with this, let me know cause its boggling my mind. all i can really thing of is the seal in on the crankshaft, in the middle its not sealign properly, but i still think it woudl fire. if anyone has any clue that woudl be awsome thanksd