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    V TWIN 18HP Brigs with ohv on each cylinder misfire only under heavy load

    I have the 18hp v twin on my zero turn cub and I can run around with it and it wont miss, but once I turn the mower on it is lacking power and misfires. I have compression checked each cylinder and each were around 160psi Just for kicks I opened up both overhead valve covers inspecting the...
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