View Full Version : 200 Merc EFI Shutdown Problem
Steve Jameson
12-01-2007, 06:05 PM
Problem: Engine runs for 5 minutes than shuts down for 30-60 minutes then runs for 5 more minutes. Found cooked winding on stator.
Question: should I replace the stator and regulators with genuine Mercury Parts or are after market parts like CDI as good. I sure like the difference in the price.
JUST-IN-TIME
12-02-2007, 03:45 AM
Problem: Engine runs for 5 minutes than shuts down for 30-60 minutes then runs for 5 more minutes. Found cooked winding on stator.
Question: should I replace the stator and regulators with genuine Mercury Parts or are after market parts like CDI as good. I sure like the difference in the price.
cdi are better then oem
shooter1
12-02-2007, 11:15 AM
What windings are saying are cooked? If it's the alternator charge windings, you have another problem. A merc has a high and low speed charge coil for the ignition switchboxes to work. You need to check and find out for sure what is wrong or else you'll be throwing money at it for a long long time. It's a known fact that boat motors love $100.00 bills.
Shooter1
Steve Jameson
12-02-2007, 03:22 PM
Shotter 1,
One of the regulators went out and not only cooked the stator but also fryed the battery. The battery will charge to 13.5V but 30 minutes later it's down to 11-11.5V. Also when the motor is running wide open it's showing 17V on the voltage/battery guage.
Steve
jeff dunn
12-02-2007, 07:30 PM
Use the cdi, use there stuff almost everyday, you can get a kit from cdi that comes with stator and both regulators. jeff
shooter1
12-02-2007, 09:41 PM
I agree on the CDI stuff but, you might have another problem with it dying. It sounds like a temperature related problem since it starts after it cools down. Could be a broken wire, or bad connection, or a bad switchbox. I'd check everything visually first. I'd also check the high and low speed voltage with a DVA. If your battery won't hold a charge you need to replace it with this electrical system. The battery could be what's wrong with the voltage regulator putting out to much. The motor dying could be a high pressure fuel pump problem. I had 1 that would run for a while and then it wouldn't start. Pulled it to the ramp and loaded it on the trailer. When I checked everything checked out OK, took it to the lake the next week and same thing. I changed the fuel pump out and it hasn't missed a beat since. You might try to find somebody with a used one to try cause it is a high priced part.
Shooter1
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