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Results 1 to 4 of 4
  1. #1
    Join Date
    Apr 2009
    Location
    lindenhurst, Il, USA
    Posts
    6

    Default "MY ENGINE IS NOT RUNNING ON T

    "MY ENGINE IS NOT RUNNING ON THE TOP 2 CYLINDERS. I INSTALLED A NEW SWITCHBOX LAST SPRING AND IT RAN FINE AFTER INSTALLATION. I AM GETTING SPARK TO THE 2 PLUGS BUT THEY DO NOT SEEM TO FIRE OR ARE OUT OF TIME. CAN THE TIMING GET FOULED UP ON THESE ENGINES? (I AM GETTING GASOLINE TO ALL CYLINDERS, PULLED OFF BOTH CARB BOWLS.)THE PLUGS ARE NEW."

  2. #2
    Join Date
    Jan 2009
    Location
    blanchard, ok, usa
    Posts
    76

    Default Need a bit more info on motor

    Need a bit more info on motor year hp ?. what is comp. how far will spark jump ?

    arcrat

  3. #3
    Join Date
    Apr 2009
    Location
    lindenhurst, Il, USA
    Posts
    6

    Default IT IS A 1986 45 HP. HAVE NOT C

    IT IS A 1986 45 HP. HAVE NOT CHECKED COMPRESSION BUT I THINK IT IS OK. THE LAST TIME I RAN IT ABOUT A MONTH AGO IT WAS LOADING UP AT IDLE BUT REVVING WOULD CLEAR IT AND COULD GET FULL SPEED. THE SPARK JUMPS AT LEAST 1-1/2 INCHES.

  4. #4
    Join Date
    Nov 2005
    Location
    , il,
    Posts
    2,198

    Default "spark, compression, carbs, no

    "spark, compression, carbs, no skipping test. I would do a cyl drop test if that all passes, which it probably won't.
    http://www.themarinedoctor.com/cgi-b...num=1144247599

    The only other thing that hasn't been mentioned would be a reed problem. But fuel would be spitting back out the top carb if the top cyls are dead.

    Were the main jets cleaned in both carbs or just the bowls removed. Without any gas to the cyls with the bad carb they get no oil."

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