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    Evinrude 115Hp V4 Project Rebuild / Repowering a Fourwinns Fling Turbo jet boat

    And if that balsa core material has somehow gotten water in it , then it might be compromised in strength.
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    Long or short shaft

    A 15 " transom is for short shaft motors.---Your 1960 Fastwin would have a 5" spacer if it was a long shaft.-----A 16" transom is also considered short by many builders.-----Order a shortshaft ( 15" ) motor from Tohatsu
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    Evinrude 115Hp V4 Project Rebuild / Repowering a Fourwinns Fling Turbo jet boat

    Visit ----composites canada---and--Noah's boat building supplies.-----Lots of information.
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    Evinrude 115Hp V4 Project Rebuild / Repowering a Fourwinns Fling Turbo jet boat

    Agreed-----Most folks just do not know how boats are built.------The parts folks see in the show room are fiberglass.------Then there is foam core / balsa core / cheap plywood , for transom and stringers.----Have even seen chip board ( beaver puke ) used for stringers.----The project I am doing...
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    Help with Mercury 75Hp 2 stroke bogging down / surging

    Have to start somewhere and this is what I would do---Check for water in fuel tank.-----Check gear oil.-----Use timing light to see if you can pinpoint ignition issues on one of the leads.
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    2017 Merc 30hp EFI outboard tell tale nozzle help

    .----Serial # ?-----It is shown on the lower cowling on some 30 HP models----
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    Fouled Crankcase.-

    Plug fouling ??----Maybe there is something else going on.-----Plugs are well engineered / specified for a motor.------Plugs rarely fouls on modern engines.-----Only the operator who THINKS that plugs are fouled.
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    1977 115 evinrude ignition trouble.

    Better to be careful with prop selection.----As it is , you might have the wrong prop for this boat.----You run the risk of serious motor damage !!
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    1977 115 evinrude ignition trouble.

    What pitch propeller is on the motor?----- 23" pitch I hope.
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    1977 115 evinrude ignition trouble.

    Hard to believe that the boat goes 45 MPH with 1/3rd throttle.
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    1972 evinrude 9.5 need long shaft or different trim?

    If the transom is 15" high , a standard 15" ( short shaft ) motor does the trick.-----But try raising the motor 1/2" to see if spray is reduced.
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    Luhrs Boats

    A 10 second google search said they had been around for 60 years.----With up to 400 employees.----St Augustine , Florida----Easy to find.
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    Mercury 2004 40hp, water in piston/cam shaft, why does this occur? Seems a common issue with this earlier model?

    ???----A cam ?----Then you indicate 2 st -----Pictures or a serial #
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    1975 25 hp Evinrude 25502B

    Throttle valve MUST be closed at idle.
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    Luhrs Boats

    Ceased operation in 2008.-----There be lots of information on the web.----Used google ???
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    1975 25 hp Evinrude 25502B

    None of the above !!
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    1975 25 hp Evinrude 25502B

    The carbon rotates with the crankshaft.----The raised face in 195928 runs on the bearing face.-----A very minute amount of liquid is allowed to leak out.----This lubricates the seal.----That is how a mechanical seal works.----Have had experience with mechanical seals that sealed 1000 PSI in a...
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    Fouled Crankcase.-

    Took a 1983 model 9.9 Evinrude apart for inspection last week.-----No carbon in the ring grooves at all.---Little bit of carbon / black stuff on top of piston.----Just put pistons back in this afternoon.
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    What is this wiring connector?

    It would be easy to splice into the wires to install a remote switch.
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    1996 4 stroke Johnson 15hp

    If it runs nice then just run it.------Black stuff like that will show up in a barrel.
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