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    Yamaha VF250 erractic oil pressure

    Is the gauge electrical or purely mechanical?
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    Yamaha VF250 erractic oil pressure

    Does Yamaha offer a standalone oil pressure gauge?
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    1998 150TLRW Shaft Extension Kit

    http://www.baymfg.com/kits/yamahamariner/
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    yamaha fourstroke crank bearings

    This entire post started because of the OP's erroneous understanding that bearings are not available from Yamaha. Well they are. All he has to do is to follow the service manual and install the bearings that are called for. Them double check them to be sure. A tale told in error. Full of...
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    yamaha fourstroke crank bearings

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    yamaha fourstroke crank bearings

    Something is not adding up. The carbureted Yamaha F90 was first offered in 2003. Identical to the Mercury 90 HP carburetted four stroke. The fuel injected F150 was first offered in 2004. Not offered by Mercury. Completely different motors. The F150 using a bigger block. Different crank shaft...
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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

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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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