Please help. I have a 200hp Merc Blk Max 2-stroke. Converted to run mixed fuel. Bad math lead to way too much oil. Fouled plugs. Runs rough. Pulled and cleaned carbs, flushed fuel lines. Mix is correct now. Installed new plugs. Still running rough. Shakes bad just above idol. Compression and leak down are good. I'm assuming the cylinders are coated in oil. Any advice? Please help!
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