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Recent content by boscoe

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    service manual discrepancy

    Here is a technical bulletin that indicates a slightly different way of performing the service manual procedure. I see no other Yamaha information whereby the procedure for your specific T50 was changed to be like the procedure for later model F and T50's.
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    service manual discrepancy

    Split the difference. It is a 2000 model year motor. I would think the SM has the correct procedure for your specific model. Too many confuse carburetors on the 2000 T50 model with later carburetors. Which are different. Having said that, try syncing the carburetors both ways. See what the...
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    service manual discrepancy

    What is the complete model of the motor? What is the document identity of the manual?
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    Hi there new here I need some advice for my marina outboard

    What is the serial number of the motor?
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    2002 yamaha vmaxx 150 2 stroke

    The tubing to the pee hole might be clogged with some debris. Pee hole water really has nothing to do with the water that is cooling the block and heads.
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    Starter trouble 2001 50 hp 4 stroke.

    Not understanding you not being able to find a replacement starter motor. Or just the gear.
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    Gearcase Finish Loss - Cause for Ongoing Concern?

    I am seeing nothing of concern. Just staining.
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    1987 Yamaha 115 hard start

    My bad. There is a choke. Got my threads confused.
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    1987 Yamaha 115 hard start

    _----------
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    Good spark, good spin, and fresh fuel flushed in and pumping fine. NO fire at all. Model T25 TLRZ 4stroke

    There is no low oil sensor that prevents a Yamaha from starting. The carburetor on that model has an automatic fuel enrichment device. Known as Primestart. Suspect the carburetor needs to be cleaned and the Primestart device confirmed to be working properly.
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    1987 Yamaha 115 hard start

    How is it known that the carburetors are clean?
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    Tach not working

    You can run the motor with the ten pin harness disconnected. I would do that with the tachometer connected to the green wire in the main engine harness to see if it now works or does not.
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    Tach not working

    No, the loss of a tachometer signal is not common. At all. If YDIS is displaying RPM then the ECM is getting the message. Why you are not seeing that on the green tachometer wire is the mystery. The fact that you are seeing voltage on the green wire is indicative of something. I would go...
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    Tach not working

    14.5 volts for that model is not excessive. Rectifier is not in the loop with respect to the tachometer signal for that model motor. If you are able to test the green wire from the ECM for voltage why not test it for frequency? The tachometer is looking for a frequency not a voltage.
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    What is this part? - Yamaha 200HP HDPI

    First illustration is from the Yamaha US parts catalog. Available to anyone for free. www.yamahaoutboards.com It is under the Owner Center button. Second illustration is from the applicable SM. https://www.yamahapubs.com/home/search?category_id=4&year=2000&family_name=LZ200TXRY
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