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Old 07-05-2013, 11:31 AM
rick little rick little is offline
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flathead misfire

have 59A flathead with misfire on #4 cyl.
have compression on all other cylinders at about 125# with #4 at 110.
all ignition parts are new and all wires throwing a good 1/4" of blue spark.
have checked and rechecked firing order.
when running, engine makes a snapping noise occasionally and when that happens a puff of smoke comes out the rt side exaust.
any help appreciated.
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