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    Yamaha F115 Volts low and Tach High

    Went on a sea trial for the 2002 Sea Pro 1900 I'm considering buying. Noticed the tach was jumping around a little bit when we first running out - didn't notice what the voltmeter was reading. Then after a stop for a few casts, we headed back in and I noticed the voltmeter was dead - pegged at...
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    Yamaha F115 Spark Plug Color

    Hello all. I am looking at a Sea Pro SV1900 with a F115. The owner says he didn't like how light one of the plugs looked so he pulled the fuel rail and injectors and had the injectors ultrasonically cleaned. Today we did a compression test on it - 170 to 175 psi in all cylinders, so that...
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    Idle Fine Tuning, 1988 115 L6

    Pulled the idle stabilizer box recently and reset the timing - 5 deg primary and 19 deg high speed. I have it idling down to about 600-700 rpm in gear (800 to 900 in neutral). I had to adjust the idle up that far to keep it from dying out. Idle speed screws are turned out 1 3/4 turns. The...
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    What To Do With My Old Powerhead?

    First, I am not trying to sell here and apologize in advance if this post goes over the line in that respect. After installing a rebuilt powerhead in my '88 115 L6, the old one with 2 low/no compression cylinders sits in the garage holding the floor down. Seems like a waste of good parts and...
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    1988 115 Idle Stabilizer Removal

    I repaired a corroded red/white wire at switch box at the beginning of the summer. Now I see from doing some research that the box isn't really needed and I don't think my motor needs it, so I'm planning to pull it out. Question is, should I remove or leave the white/black wire that connects...
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    Mercury 115 Powerhead Blown

    This is my first post here, so first an introduction, I am from SW MI and have owned my 1988 Fisher 18FS with a 1988 Merc 115 L6 since new. I have run across this site a few times when searching the web for info and appreciate all the advice you folks give to those in need. I hope someone can...
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