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    2001 F115 alternator output

    Yamaha seems to think that the F115 is compatible with AGM lead acid batteries. Been approved by Yamaha since 2013. Many folks were using AGM lead acid batteries with Yamaha motors long before Yamaha "approved" them.
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    2001 F115 alternator output

    No buffer needed. The electrical generation system will output what is needed, up to the limits of the system. Might take a few minutes to charge the battery or might take a few hours to charge the battery. Depends upon the state of charge for the battery.
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    2005 yamaha 250 hpdi Stator or Rectifier

    Welcome.
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    2005 yamaha 250 hpdi Stator or Rectifier

    Cheap tools are the best. Save money and buy a cheap manual as well. Two cheaps equals one good.
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    2005 yamaha 250 hpdi Stator or Rectifier

    You did. It was like the jitterbug. So simple it plumb evaded you.
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    Trim Function for Yamaha 90 Four Stroke

    Even though For a fellow so conversant in trouble shooting and detailed repairs, and one knowing that the OP's motor uses a relay assembly containing two individual integrated relays, as opposed to similar motors that use two physically separate relays, a very strange question to be asked. Even...
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    Trim Function for Yamaha 90 Four Stroke

    Got it. One semi-sealed relay assembly with one part number containing two relays equals two relays. Similar, but different, to two separate relays having different part numbers equaling two relays. Try call Yam and ordering up the one of the two relays in the relay assembly that has failed...
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    2005 yamaha 250 hpdi Stator or Rectifier

    Mr. Customer, I can spend a few hours taking your old pump motor apart to try and repair it, at a hundred bucks an hour, hoping that it is repairable and that such repair will last, parts being extra if needed, or I can spend half an hour and $140 installing a new part with a warranty. What's...
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    2005 yamaha 250 hpdi Stator or Rectifier

    Just trying to do better. I am led to believe that not taking a component apart to find the core source of a problem is a failure to perform adequate trouble shooting. Would be a waste to take a component that does not perform (say an ECU or a stator) and simply replace it rather than opening...
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    Trim Function for Yamaha 90 Four Stroke

    I knew that I should have paid more attention in school. Apparently one plus one equals two while one also equals two. New math I suppose.
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    Trim Function for Yamaha 90 Four Stroke

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    Trim Function for Yamaha 90 Four Stroke

    Did not think this to be necessary but it appears so.
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    Trim Function for Yamaha 90 Four Stroke

    The testosterone certainly be flowing today.
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    Trim Function for Yamaha 90 Four Stroke

    The section of the wiring diagram I posted shows one relay assembly. The parts breakdown illustration I posted shows one relay and two relay assemblies. One trim/tilt relay assembly. One starter motor relay. One main and fuel pump relay assembly. I shall refrain from asking for your help in...
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    2005 yamaha 250 hpdi Stator or Rectifier

    The more I think about it, if the stator is not outputting rated voltage then don't rush to replace the part. Don't throw parts at the problem. Trouble shoot. Maybe start unwinding the stator coils to find the discrepancy. Then just splice in a new section of wire.
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    Trim Function for Yamaha 90 Four Stroke

    The service manual that indicates there are are two trim and tilt relays?
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    Trim Function for Yamaha 90 Four Stroke

    Yep. A parts replacer. Replacing parts. Individual piece parts if the customer wants. Or component parts if the customer wants. Piece parts can be cheaper but then the labor will be higher. Higher labor can result in a total repair cost greater than just replacing the component part. A...
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    Trim Function for Yamaha 90 Four Stroke

    Not mad at all. Just perplexed. You must be looking at the wrong wiring diagram. Not really wrong. Just wrong. No shame in that. Any shame comes about from failing to accept the truth.
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    2005 yamaha 250 hpdi Stator or Rectifier

    At a fast idle the rectifier/regulator should be outputting ~ 14.5 volts. Presumption being a fully charged good condition battery. How old is the battery? What size? Flooded lead acid type or AGM lead acid type? First thing I would do is to inspect all of the connectors from the stator to the...
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    2005 yamaha 250 hpdi Stator or Rectifier

    That is what I thought until I started reading the bass boat forums. Many, many, many use just one battery to start the motor and to run their electrics. With long use of those electrics and short use of the motor. One reason they are in love with lithium batteries. It can do for them what a...
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