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Old 06-16-2007, 12:22 PM
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hi anyone help, my 50hp 4cyl 2 stroke mercury is only firing on 2cyl , have eliminated the plugs,leads,coils, engine charges battery ok , could this problem be caused by a faulty cdi unit ??
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Old 06-17-2007, 08:01 PM
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yes most likely the dc unit!you shoud do a dva test to confirm goodluck
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Old 06-17-2007, 08:02 PM
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sorry for the spelling i mean cdi .
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Old 06-17-2007, 08:04 PM
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i also have a 50 merc 4 cyl and i go through a cd box every couple years..just a flaw with there igntion system. go figure
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Old 06-18-2007, 03:32 PM
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ok tks for the help, oh whats a dva test??? any ideas whare i could get a secondhand cdi unit ?
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Old 06-21-2007, 01:26 AM
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scotssandy
got the manual?
if not shoot me an e-mail
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