Re: Spark, fuel & compression but won't start
Have you done a compression test to verify you have enough to fire the engine? You say you valve is hung open an 1/8"? A valve that is not fully seated will cause major running issues. Backfire through carb or exhaust, low or no compression. Your lifter sticking are you saying that its stuck in the bore and won't follow the cam lobe?
Do a compression test. And post your reading. Also make sure your battery is fully charged so you get good cranking speed for the compression test
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