My Johnson Outboard wont run in the water but runs great on the water hose.?

Question by kramerhd: My Johnson Outboard wont run in the water but runs wonderful on the water hose.?
My boat run wonderful on water hose , but under a load in the water it's tough to start and keep running.

I've replaced the fuel pump, carbs had been rebuilt, new jets, no obstructions in the water pump system(good stream of water).

Quick history: The boat repair location has had it for a month messing with it and still cant figure itout( yes Don't say it) THEN GO PICK IT UP.

I've already paid them for the Fuel pump, Carb. work, New jets for the card.

I took it to them in the beginning cause the motor "Burpped" at high speed.

Please help with your ideas...
****REVISION*****
Well just got back from the boat mechanic,
1. It a Johnson/Evenrude 1976 model
2. Originally a 90hp, but the carb. were replaced with a 125cb.( Ran Wonderful)

The boat still runs on the water hose like NEW.Low idel...Fantastic shift into gear.....Starts with small turn of key.

But in the water....( Omg!)

Nothing.. Floods, won't start...NOTHING..

In the beginning....
I took it in for them to look at trigger at high speed it burpp'ed.
( atleast it ran.)

AND NOW!!!!

Nothing, wont run in water.
They made it worse......

What the heck do i do?

Very best answer:

Answer by cdslsmn
It could be an electrical problem with the ignition not advancing when the throttle does. That could be it or any other host of things. Watch the throttle advance and ignition and see if it bogs down then. Ask the technician if that could be the problem. They can typically figure it out.

Give your answer to this question below!

The well-known "propeller" scene from the Marino Girolami cannibal and zombie splatter epic.

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26 Comments

  1. junkman
    Posted February 2, 2011 at 9:59 am | Permalink

    Did you do a compression check ? what size/year is the motor ?

  2. John
    Posted February 2, 2011 at 10:40 am | Permalink

    what is the compression onthe cylinders?
    if you got less than 110psi compression, you need new rings.
    that’s what it sounds like to me.

  3. steplift20
    Posted February 2, 2011 at 11:17 am | Permalink

    hmm good one what i would do is change the fuel filters and water sepperator if you have one, also is it pissing water out the tube when running on land? if not change the water impellor and change the plugs try that than you might have to get a johnson repair shop but not the one you are using and let them figure ir oue

  4. jtexas
    Posted February 2, 2011 at 12:05 pm | Permalink

    difference between the hose and in the lake is backpressure on the underwater exhaust.

    did those parts-changers down at the boat place do a compression test and spark test?

    If not, do that first.

    Compression should be about the same on all four. Anything over 90 would be good on that vintage v4. Spark should jump a 7/16″ gap on an inline tester.

    Is the primer bulb getting hard and staying hard?

    Take the airbox cover off.
    Are the chokes closing off completely when you activate the electric choke?

    Tilt the motor full up and pump the primer bulb until firm. Does any gas leak out the carb throats?

    Are the spark plugs wet or dry after cranking?
    Are they champion QL77JC4 gapped at .030?

    Is the battery fully charged? it needs to crank at least 250 RPM to start.

  5. jordanb002
    Posted February 2, 2011 at 12:05 pm | Permalink

    Damn head shrinks!

  6. whizzhead
    Posted February 2, 2011 at 1:34 pm | Permalink

    He hit that problem on the head .

  7. whizzhead
    Posted February 2, 2011 at 2:08 pm | Permalink

    he’ll never get head again.

  8. EaglesMan36
    Posted February 2, 2011 at 2:28 pm | Permalink

    If Roger Moore as 007 was in this movie, he’d be making all these head jokes……

  9. JokerScars69
    Posted February 2, 2011 at 2:52 pm | Permalink

    he was headed for a disaster

  10. pacotabaco2
    Posted February 2, 2011 at 3:20 pm | Permalink

    Yeah, he will keep… his head destroyed or something… I guess.

    I’m sorry I’m not good for head jokes.

  11. legendkiller850
    Posted February 2, 2011 at 4:04 pm | Permalink

    He got ahead of himself

  12. eddiefuzz
    Posted February 2, 2011 at 4:57 pm | Permalink

    Someone should have given him a heads-up…..

  13. hschan4
    Posted February 2, 2011 at 5:10 pm | Permalink

    I guess he wasn’t head-strong enough…

  14. Mwgedd
    Posted February 2, 2011 at 5:52 pm | Permalink

    I have one thing to say to all these comments/puns.
    *puts on his sunglasses*
    YEAHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH!!!!!!

  15. ngogol
    Posted February 2, 2011 at 6:09 pm | Permalink

    Enough of the bad jokes…you’re messin’ with my brain!!!

  16. Perversus666
    Posted February 2, 2011 at 6:49 pm | Permalink

    haha this movie is so funny. it’s called “zombie holocaust” and i think you have to wait about 1 hour and a half to see the first zombie in the movie. i also love that kitsch sound every time they see the sign of quito.

  17. 666moviefreak
    Posted February 2, 2011 at 7:37 pm | Permalink

    awesome scene

  18. somebutthead
    Posted February 2, 2011 at 7:40 pm | Permalink

    What a… MOTORHEAD!!!!

    What? No?

  19. godofmetal712
    Posted February 2, 2011 at 8:50 pm | Permalink

    all these puns made me LOL …. lol

  20. mrshef666
    Posted February 2, 2011 at 8:58 pm | Permalink

    hey dude ya got something on ya face…oh yeah its a propeller

  21. phunboy
    Posted February 2, 2011 at 9:04 pm | Permalink

    Fate propelled him to his doom.

  22. kharley
    Posted February 2, 2011 at 9:58 pm | Permalink

    It looks like his life was headed in the wrong direction.

  23. fatfoxclown
    Posted February 2, 2011 at 10:09 pm | Permalink

    and this was only in dr butcher and the other one ommited it and added it to the dvd as an extra

  24. enternollie93
    Posted February 2, 2011 at 10:33 pm | Permalink

    zombie got pwned :D

  25. Dayofthedead1976
    Posted February 2, 2011 at 11:19 pm | Permalink

    It’s a shame he wasn’t more head strong

  26. MsSouthernman
    Posted February 3, 2011 at 12:08 am | Permalink

    @smerd70 LMAO

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