Recent content by boscoe99

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    Ethanol!

    What are the inspection officials looking for? I thought it was mainly for accuracy of volume.
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    Upgraded from 2 stroke to 4 stroke Yamaha, need guages

    The oil pot icon is used just to refer to the oil system. Same icon is used for tachometers when used with two and four stroke models. Later Yamaha 6Y5 tachometers have a two stroke mode and a four stroke mode. And instead of lights they used LCD's. When in the two stroke mode three icons are...
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    Upgraded from 2 stroke to 4 stroke Yamaha, need guages

    The gauge you have does not indicate low oil pressure. Oil quantity indications only. Yes, the tachometer will tell you what the alarm is about. Low oil quantity in a two stroke and low oil pressure in a four stroke. And over temperature in both two and four strokes. But it in no way affects...
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    Upgraded from 2 stroke to 4 stroke Yamaha, need guages

    Now you need to decide what sort of instrumentation that you want? Analog needle and dial. Analog with digital display. Digital with digital display. Yamaha brand or non Yamaha brand?
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    Upgraded from 2 stroke to 4 stroke Yamaha, need guages

    The alarm system is completely unrelated to the gauge.
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    Yamaha T9.9 no power to starter

    Most Yams have circuit protection for starter motor relays. Those Yams that have a starter motor solenoid activated by a starter motor relay do not have circuit protection for the solenoid. Only for the relay. All Yams have a kill switch to stop the motor. Either when the key is turned to off...
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    Yamaha T9.9 no power to starter

    On the T9.9 models Yamaha calls it a relay.
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    One or both

    It is the abnormal that causes the desire for many to have two (or more) batteries. No fun being stuck out in the briney blue waiting for Seatow to come out and jump start a motor or to tow you home.
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    remote motor control on-off-start

    I am guessing that someone rewired your used 703 ten pin harness. Below are three different illustrations showing how the side of the ten pin harness towards the motor is configured.
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    remote motor control on-off-start

    Something is not adding up.
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    One or both

    What is the second battery connected to? In a typical installation there may be one battery dedicated to starting the motor and a second battery dedicated to providing electricity to everything else in the boat. If the main battery were to fail such that it can not start the motor the second...
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    Are Yamaha fuel filters universal?

    For most folks it will work out if they focus on the complete model identity and year of production. They can then use the Yamaha USA parts catalogs to get the correct part needed. Of course a good man behind the parts counter can either do that for the user or confirm that the user made the...
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    Mariner 40E 6E9 S 103761 Can't find a definitive year or manual

    Sounds like the carburetors are not doing their job. Were the carburetors completely dismantled and cleaned in a heated ultrasonic cleaner? If not that is where I would start. When the motor starts to fall on its face have someone spritz some gasoline into the air intake. If it picks up and...
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