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    What are normal compression readings on a 1999 OptiMax 200?

    I took compression readings on all cylinders with all plugs removed. Starting with #1 they are: 85, 75, 85, 90, 85, 80 The motor was running well until the low pressure fuel pump failed and that caused the hp to fail also so I'm taking time to check everything.
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    Compression on a 1993 6 hp Yachtwin

    I'd like your opinion on a I'd like your opinion on a dry compession average of 90 psig and a wet of 95. The top and bottom cylinders were tested with the opposite plug installed. The wet readings were after oil was sprayed into the corresponding cylinder. The motor is a pull start sailboat...
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    99 200hp Optimax DFI Fuel Press Regulator

    HELP! Gasket in my fuel pressu HELP! Gasket in my fuel pressure regulator cracked. Merc parts says I have to order the whole rail. I cannot locate a new regulator nor any parts. Anyone have any suggestion? Motor Serial # OG825166
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    99 Optimax DFI rattle

    "The motor was having trouble "The motor was having trouble idling and I checked fuel, air, plugs, wires and found #3 cylinder had no compression and the others had around 110. removed that head and no seal leaks were found. Found the rings were stuck but cylinder not scratched. Used carb...
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    99 200 Optimax DFI Idle Problem

    "I'm stuck! This motor ran "I'm stuck! This motor ran great until I took it to a suggested shop and had the thermostats replaced, fuel filter replaced and asked them to check my gear/throttle adjustments I had done. We bought this motor a couple months ago from Talahassee and I was concerned...
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    Proper prop for larger motor

    "My son installed a '99 20 "My son installed a '99 200hp Merc. DFI on his '79 SeaCraft which previously had an '82 150hp BlackMax. The BlackMax ran best with a 14.5D X 15"P prop and rpm's were fine, just slow and sluggish. Today he ran it for the first time since completing the installation and...
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    1999 200hp Optimax Injectors Recall

    "My son just bought a low hour "My son just bought a low hour, clean running 200hp Optimax DFI Saltwater w/ about 375 hours on it - salt water use. The starboard head has the blue injectors but the port has black ones. We plan to go ahead and replace the thermostats for our piece of mind but...
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