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  1. R

    throttle adjustment 1976 evinrude 6604

    Post what your motor is doing !!!-----Some of us can quickly diagnose these simple motors for you.
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    25hp 3cylinder starting in reverse

    I learned back in 1968 that prop must be turned while shifting most motors.-----I think you still need to adjust the shift rod to correct the shift issue described in post #1 in my opinion.
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    1984 35hp mercury steering part

    You need a new system and cable.------One that attaches to the tilt tube and then comes back to the motor.------Hurry to your local boat shop to get help to select this item.----Simple.
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    25hp 3cylinder starting in reverse

    Simple-----Propeller must be turning when trying to shift this and many other motors.-----Allows clutch dog and gears to engage.-----Look at some pictures of these parts.
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    1972 Evinrude V4 100hp Selectric issues

    The selectric refers to the shifting.----12 volts to green for neutral.----12 volts to green and blue for reverse.
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    1996 130HP Evinrude

    There may be issues with crankcase compression.----Perhaps a broken sealing ring on the crankshaft.
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    1972 Evinrude V4 100hp Selectric issues

    Time to look inside the control box for loose wire or bare wires.----Motor actually sounds pretty good.------But avoid revving it in neutral as that is not good for bearings and such.
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    Four winns fling jet boat

    Oil should not be leaking like that.----Unless it was given a healthy dose of fogging oil.-----Do a compression test on this machine before you spend any beer tokens on it.----Check gear box oil.
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    1980 115 johnson stumbles at 2500rpm low compression cyl 3

    Well ----I do not think the brass jets wear out.----But some folks are desperate for a story when motor does not run properly.
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    Johnson 3 cyl 70 hp, 1986. No vacuum at one carburator

    If the pump works fine then you must have crankcase pressure developing.-----Strange that you would have no vacuum.-----There is a possibility that the cylinder sleeve has rotated.-----Instead of jumping up and down around the boat pulling your hair out, pull the cylinder head.----Inspect...
  11. R

    Johnson 3 cyl 70 hp, 1986. No vacuum at one carburator

    If the pulse line to the pump was fully OPEN you would have issues with air getting pulled in through the BOTTOM carburetor.
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    Stalls at idle

    Check fuel pressure and air pressure from compressor.-----Check for good strong spark on each lead.----Spark should jump a gap of 3/8" or more.
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    Sea Rayder F16 Jet Boat

    Do not spend any beer tokens on this wear ring until you deal / resolve the low compression !!!
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    Four winns fling jet boat

    Was this unit winterized last fall ?------Checked the oil in the gear box ?-----Any water in the cylinders ?-----Battery fully charged and load tested ?
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    Lower End Unit Water Stream?

    It is a drain for a cavity to prevent freezing / cracking the gearcase.----Ok---You say you are in Florida.----When they built the motor they did not know if it was going to Florida or Alaska.
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    Johnson 3 cyl 70 hp, 1986. No vacuum at one carburator

    The fuel pump runs on PRESSURE pulses from the lower of the 3 crankcases.-----If there are no pressure pulses the fuel pump does not work..-----That is not a breather line.-----It simply pull any fuel spillage into the engine.----A safety feature you might say.
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    Stalls at idle

    Best to book call the shop and take it in.
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    Stalls at idle

    Compression test first.----Post the numbers.-----
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    Link & Sync 1990 15Hp Evinrude

    Very common for those to be missing. ----Many ways to fix that.---Build it up with tape.----Split piece of plastic pipe.------Make one from plastic / wood.-----Or simply buy ( $22.58 ) a new roller follower assembly.
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    1985 Mercury 85hp (4 cyl) runs great for 20 minutes then boggs down

    Maximum spark advance is clearly identified.----It is the top screw on that lever.---Leave motor stopped.-----Turn propeller.-----Have an assistant SLOWLY move control lever to full throttle.------Observe movement of linkages.-----The maximum spark advance rarely needs to be adjusted for the...
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