Mercury 30 hp ELPTO Voltage Problem

428Scooter

Recruit
Joined
Jul 17, 2008
Messages
4
Have been having a problem with 1998 Mercury 30 hp ELPTO outboard motor. When running, the voltage meter will start to vibrate, then bounce back and forth on the dial. Soon after this starts, the tachometer will start to fluctuate wildly and you can hear the engine rpm change. Only happens at full throttle 4900 rpm. When I cut back below 4000 rpm everything will stabilize. The problem does not occur all the time. Could run 20 minutes with everything good before problem starts. Dealer has replaced the voltage regulator, stator and repaired bad ground. This has been going on for a while and patience has almost run out.

Thanks
 
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