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    Trim Sender Rotor

    Does anyone know how the digital sender on the Alpha 1 drives work? Last season my gauge started doing strange things before it when to up all the time. Before we put it in the water this year I replaced the rotor and that fixed it for about 2 months now it points up all the time again. The...
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    Temperature issues

    Last year our 07 3.0 Merc with 115 hrs ran a tad warmer than I remember it running (175 on the hose, slightly higher in the water) used to be 150 on the gauge while on the hose and around the 165-170 at W.O.T. Now that its time to put it in the water I just put a new Quick silver t stat in and...
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    Merc 3.0 I/O couple questions

    I have an 07 3.0 with 113 hrs on it and now the season is winding down I wanted to address some minor things that I noticed of the summer. We bought it brand new in 08, its moored and used mostly in a brackish river. Issue 1 Trim sender has an erratic gauge. I took the starboard sensor...
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    Yamaha F115 Fuel problem

    We have a F115 EFI with about 800hrs on it. On Saturday it went in for the first time this season, it cranked slow and took a little bit to fire off but it did. It ran beautifully, full power and idling. I went to take it out Monday and it did not start, cranked fine but would not fire...
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    F90 missing and power loss

    We have an 06 F90 EFI (950hrs) that has developed a loss of power and a miss. It sometimes will stall at idle and when going from Forward to Reverse. I was told that the stall has started a week ago and the loss of power yesterday. Today I changed the filter on the engine and pulled the plug...
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    25HP EFI prop cavitiation

    I have an 08 Merc 25HP EFI on a Sundance flat bottom Skiff. I thought the hub had spun but after I got a new prob the same thing is happening. The RPMs go up but the boat barely moves. When I drop the trim pin to the lowest setting the boat will move right out but you can still detect prob...
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    F15 Reverse lock

    I have a 15HP 4stroke that the reverse lock doesn't always engage. After looking at it I see there is a lot of play in the rod and the bracket needs to be changed. How do you take out the roll pin and put a new one in? Are there any tricks?
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