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    Can someone help me, what is this

    www.yamahaoutboards.com free image hosting website
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    Can someone help me, what is this

    It is a shame that the model of the motor is not known. If it was, one could see that part in the Yamaha parts catalog.
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    oil injection fittings , tip broke

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    2006 Yamaha F115 TXR

    www.gaugesaver.com
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    Need a CDI for a 1979 to 1983 120HP mercury outboard

    Interesting. Once a car is driven off the dealers lot it is "used". I would have thought the same for a CDI unit.
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    93 manier 75 hp

    What is the engine ID?
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    Need a CDI for a 1979 to 1983 120HP mercury outboard

    Why is that?
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    1989 Yamaha 225hp extremely bad spark

    Other than cranking the motor, what does battery voltage have to do with spark?
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    1989 Yamaha 225hp extremely bad spark

    What is the complete model of the motor?" They are not all the same.
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    Electrical Fire - 2005 Merc 60hp 4 stroke - help in diagnosing please

    https://www.boatus.com/expert-advice/expert-advice-archive/2016/january/causes-of-fires-on-outboard-powered-boats
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    Electrical Fire - 2005 Merc 60hp 4 stroke - help in diagnosing please

    https://www.google.com/search?sca_esv=5e30fa47b0061313&q=regulator+damaged+outboard+motor&udm=2&fbs=AEQNm0AVbySjNxIXoj6bNaq7uSpw-2eW7KIQ8H4T_tEPJYsPzOi5GKsV0RKGmy84LfyUxrl-4_0AusV0IdjeUAdX2KBg7BmnGLOak5d-z-_u-BD5mN13FgBnNWDvju7R9DTlWNidOrJflM1JuVtiWYZDkHFOJzhjFWWukocdFSx3yN5TzfLggWRnI4Aa-8EhEIZUf...
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    Electrical Fire - 2005 Merc 60hp 4 stroke - help in diagnosing please

    On your type of electrical generation system, rectifier/regulators produce heat as they do their magic. They are shunting current to ground and that produces heat. Particularly air cooled R/R's. Not unknown for them to get so hot they harm adjacent components, with or without flames at times.
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    1986 Mariner 40HP 6E9 Throttle Cable Type Help

    You can get Mercury branded cables, Yamaha branded cables or Teleflex branded cables. Just measure the length of the existing cable(s). Then get replacement cables of the same length. Remove the cable end(s) from the existing cables and install them on the new cable(s). If you want new cable...
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    1986 Mariner 40HP 6E9 Throttle Cable Type Help

    Are the rest of the letters and numbers missing from the engine ID? I suspect you might be after the cable end fittings moreso than the cable itself since the cablers are pretty generic. Or do you plan on reusing your end fittings...
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    Electrical Fire - 2005 Merc 60hp 4 stroke - help in diagnosing please

    Serial number of the motor please.
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    2008 Yamaha 50tlr Trim/Tilt Working Intermittently

    You might be confusing the relay assembly used on the OP's motor with say a Mercury model that uses separate Bosch style relays. Here is a photo of the OP's relay assembly.
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    2008 Yamaha 50tlr Trim/Tilt Working Intermittently

    Is the pump motor on the T and T unit getting ~12.6 volts when the relay is activated? Voltage without current flow is meaningless.
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    Fuel filter question

    Mercury says that you can.
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    Too big a battery harmful?

    If you run a motor at WOT you COULD possibly damage it. Same with an alternator. Just comes with the territory. I could not agree with you more about boat systems never being as reliable as automotive systems.
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    Too big a battery harmful?

    Why not? That is the purpose of having an alternator. To charge up a battery, or batteries, and to provide current to electrical devices on the boat. As well as providing current to electrical components on the outboard motor itself. Talking of over tasking an alternator is similar to over...
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