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  1. R

    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.
  2. R

    Sea Rayder F16 Jet Boat

    Do not spend any beer tokens on this wear ring until you deal / resolve the low compression !!!
  3. R

    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 ?
  4. R

    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.
  5. R

    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.
  6. R

    Stalls at idle

    Best to book call the shop and take it in.
  7. R

    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...
  10. R

    Need some input on 50 HP Johnson problem.

    Part # of the pump that was installed ?----Was it mounted over the pulse port on side of top cylinder ?----Replaced plug leads ?-----Water pump impeller replaced ?----Compression values today ?
  11. R

    Mariner/Tracker 20HP Tiller misfire low/mid RPM

    Switch coils and see if problem moves .
  12. R

    Lower End Unit Water Stream?

    Normal and do not plug that hole.
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    Compass heading

    Or use an old trick that I have used.------On the way out ---" trees on the left"-----On the way home ------" trees on the right "------As others have said you need to plan carefully for this venture.
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    Mercury 90 2 stroke popping and running rough

    It gets worse.----If a carburetor is plugged , then no fuel goes into 2 cylinders and no oil !----Do not run this motor again.-----Find the issue and fix it.-----Find the small hose ( oil recirculation ) that goes from bottom of engine to the top bearing area.-----On the starboard side of the...
  15. R

    Sea Rayder F16 Jet Boat

    Well ---80 PSI is low in my opinion.
  16. R

    Sea Rayder F16 Jet Boat

    That uses the 120 HP FORCE engine.-----I would do a compression test on it before spending any beer tokens on this boat.
  17. R

    1980 115 johnson stumbles at 2500rpm low compression cyl 3

    Mechanic at dealer was working / doing service work on a 300 HP E-TEC G2 on a silvery 20'+boat.----Also the 25 HP E-TEC on the same boat.------6 hrs on that will generate painless revenue.-------An early 80's V-4 and the owner are not popular at big shops !!
  18. R

    2003 Honda BF8 No Compression

    When pully broke the valves stopped moving.----Pistons likely hit valves and bent them.----Remove valve cover to inspect.---Likely lots of valve clearance as valves might be stuck open now.----Easy fix to replace bent valves I think.-----But that be my opinion !
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    1980 115 johnson stumbles at 2500rpm low compression cyl 3

    Yes-----But they no longer rebuild older ( 1984 ) motors.-----Motors are older than the mechanics.----Owners of older motors will howl and complain at the cost to fix these motors.-----Owners of $80,000 boats will say " thank you " when they see an invoice for $700 for service work.
  20. R

    1973 Evinrude 25hp lower unit failed pressure test.

    It should not be hard to find a good gearcase.-------visit the ----aomci-----website and place a free wanted ad.-----Local swap meets have these parts motors available for around $100 I hear.
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