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Member
2003 Merc 200 IFE, No power
S/N OT791227
Idles and starts fine. No power under load. Won't get over 2500 rpms. Plugs and water separator are 2 years old with 50 hours on them. Boat is a 2003 TR19. What's things I can check myself?
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Member
Basics:
Proper spark to all cylinders
Fuel pressure and volume under load
Compression
Gear case lube condition (water or metal)
Yesterday I replaced a lower unit for a friend with the same complaint that had been to a local dealer twice trying to get it running right. No lube at all clear clean water and metal. I'm betting it is fixed
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Mercury 3L/4 Stroke/Verado Moderator
In addition to checking the basics (above), it would be a good idea to follow up with the recommended ANNUAL Maintenance.