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    spark advance on 9.9 sailmaster

    I am helping a friend who has a Merc 9.9 sailmaster. The spark advance is not advancing as the carb opens up. The spark advance depends on a spring to advance the spark as the carb linkage advances. Something must be gummy with the system. I sprayed WD-40 on the exposed linkage, this helped...
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    Old Evinrude 3.3 HP river motor

    I have an old Evinrude 3.3 HP river motor. These motors are distinguished by the fact that the prop shaft is not at a 90 degree angle, very interesting looking motor. The model is 4423 and sn is 87525, I am unsure of the year, I have been told both 1936 and 1947 ? My question concerns a...
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    Mercury oil tanks

    No major problems at this time, but I do have a question that I would like to pose to the audience for comment. I have a pair of 1992 Merc 175s and I use the original oil injection. Over the years I have noticed that the outside of the onboard ( remote ) oil tanks are always oily, on both...
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    Mercury Mark 25

    I have a Mercury Mark 25 outboard serial # 1045373. The last time I tested this engine, two years ago, it started up after 3 or four pulls. Runs great. My question is, does anyone know the year of manufacturer and original color. I think it is a 1956. It is painted black and it looks like...
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    noise reduction

    I have a pair of 175 Merc's, 1992 vintage, on my 25' boat. Althought the noise level is not bad, I would like to try and reduce the engine noise level. Has anybody tried removing the simple foam inside the motor cowling and replacing it with a newer high tech foam-lead material ? Is there...
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