1990 Johnson 25 hp not charging battery

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Old 08-04-12, 09:04 AM
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Location: Pillager Minnesota
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1990 Johnson 25 hp not charging battery

My 1990 25hp Johnson electric start tiller doesnt seem to be charging my battery can anybody tell me how to determine what the problem is or how to test it?
 
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Old 08-06-12, 04:07 AM
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Use a meter set to DC volts. Test the battery (red meter lead to positive; black lead to negative) with and without the motor running. The voltage should increase while the motor is running.

The most common cause of problems in boat electrical systems is loose or corroded wiring. Make sure all the connections are clean and tight.
 
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