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    yamaha fourstroke crank bearings

    Have you a link to the Yamaha motor that Mercury used in a 90 HP version? The Yamaha F90 and the Yamaha F150 are completely different animals.
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    yamaha fourstroke crank bearings

    What parts don't vary in size?
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    yamaha fourstroke crank bearings

    Based on bad information, it might seem that way.
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    yamaha fourstroke crank bearings

    Bad information.
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    yamaha fourstroke crank bearings

    All of the main bearings for the 63P model Yamaha F150's are available. Why not get one of each colour and measure its thickness. Then measure the diameter of each crank shaft main bearing journal and the block bearing bores to calculate what size bearing is needed to achieve the specified...
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    YDIS SMART ADAPTER,Part Number 90890-06905-00

    The software keys are only available to Yamaha dealers. Some dealer, some where, against Yamaha's direction, might offer to sell you his key.
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    EPA Info for 1998 Yahama 9.9 HP 4 stroke

    Yamaha Canada or Yamaha US? Whichever did not sell the motor will not recognize the motor in their system.
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    EPA Info for 1998 Yahama 9.9 HP 4 stroke

    Maybe the emissions information in the owner's manual can be used to satisfy customs. Southern border is wide open. And customs is worried about an outboard motor on the northern border. Makes no sense.
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    EPA Info for 1998 Yahama 9.9 HP 4 stroke

    Same model that was sold here in the USA. In fact, it might have been. Strange that customs is looking for some EPA information. Do you have the ending identification numbers and letters?
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    Running engine on Trailer.

    Owner's manual is intended to address the dumbest of the dumb. For the really dumb, it is recommended they don't run the motor using just the garden hose flush fitting. Same thing applies to the meek and timid.
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    Running engine on Trailer.

    Owner's manual says to not run the motor if and when using the garden hose flush fitting. Many are wanting to know if they can do it anyway without causing any harm to the motor. Owner's manual says not to do a lot of stuff that is successfully being done daily.
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    Running engine on Trailer.

    My experience anyway on many different Yamaha models.
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    Running engine on Trailer.

    Many run their Yamaha outboard motors at an idle RPM using just the garden hose flush fitting with nary a problem. Water flows down the water pump tube and lubricates and cools the impeller.
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    Old yamaha mariner 40 hp to 50hp conversion

    Using the parts catalogs, compare the parts used on one model with the parts used on the other model. That will tell you the differences.
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    Yamaha F30Tlrd cylinder head torque specs and tightening sequence

    Page 5-25 of your service manual provides the information that you are seeking. If you don't have the SM, it is LIT-18616-F3-00. www.yamahapubs.com
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    Yamaha 30 SG carb emulsion tube

    It is from the Yamaha parts catalog from Yamaha USA's website. www.yamahaoutboards.com
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    Yamaha 30 SG carb emulsion tube

    You are in luck. The part is still available from Yamaha. However, I would first contact www.jetsrus.com to see if they have them at a much better price.
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    Yamaha 90sho, 2019, oil alarm on. Very low hours.

    When you say that the motor does not start, are you saying that it cranks normally but just does not start up? Or is the situation that it is not cranking?
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    Yamaha 90sho, 2019, oil alarm on. Very low hours.

    What are you seeing that is telling you that it is the low oil alarm? Is it a Yamaha tachometer?
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