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  1. 9

    Yamaha 130hp fouling plugs

    why not pull it and test it to be sure it is not stuck or out of spec
  2. 9

    yamaha 4 stroke cold start problem

    you need to check to make sure fuel can flow thru those passages, and figure out how 2 of them can put extra fuel into 4 cylinders. some passage is plugged up or someone put it back together wrong maybe. did those orings get replaced when the carbs were cleaned last year?
  3. 9

    2000 Yamaha F100 four stroke oil alarm goes off at first and then goes away

    I would try using the in spec oil , the 5W 30 is a thinner oil, so using the in spec oil could bring the pressure up some. but with all the oil changes to clean/flush out the debris out of the oil system, there could be a problem from all that was in there and the lack of proper oil...
  4. 9

    2000 Yamaha F100 four stroke oil alarm goes off at first and then goes away

    I would hook up the pressure gauge again and monitor what the pressure is when the alarm sounds. if the pressure is dropping down too low, you need to find out why since you have run this motor with the alarm in several times, there is a chance something was harmed due to no or not enough oil...
  5. 9

    DF140 vst

    I can see him trying to see if the primer would still cause an over flow at lower pressures. but that would prove that my other post was not happening
  6. 9

    DF140 vst

    you could always check fuel pressure to make sure it is not too high and overcoming the float/needle/seat
  7. 9

    Yamaha 130 2 stroke height

    how does the water get to that if it is not getting to and going over the Cav Plate take it off to see for your self
  8. 9

    Yamaha 130 2 stroke height

    when the cavitation plate is above the water, I do not see how anything above it would be causing water spray. if you really want to know for sure take that sacrificial anode off and run it to see if that makes it go away. might check on props that have more stern lift, I would think taking...
  9. 9

    2009 Yamaha 25 ticking in neutral

    I once found a C60 with a problem like this, it turned out to be someone tried to force the shift into reverse while the motor was not running and the clutch dogs were not aligned( only way I could think of it could happen). found the shift shaft twisted and the pin thru the clutch dog bent...
  10. 9

    2009 Yamaha 25 ticking in neutral

    my guess is something is bent or wore out in the lower unit
  11. 9

    code 29 and 45

    you need to find out what the problem is before you can try to fix it. shutting the key off as soon as the motor dies, and then draining the VST will tell you if the VST ran out of fuel. if that is what is shutting off the motor, then you can chase down what is not letting the VST get the fuel...
  12. 9

    2003 Yamaha F60 carb question

    #4 is the only one that looks like it is burning normal
  13. 9

    Engine wont turn, frozen

    sounds to me like the steering cable moves freely, but not the motor. he needs remove the grease serts and try squirting penetrating fluid into the pivot shaft thru all areas he can. rust has set in and it may require pulling the motor apart it is a good idea to grease all those places...
  14. 9

    code 29 and 45

    29 – Incorrect Intake Air Pressure Sensor 45 – Shift Cut Off how does it shut down? if the VST runs low on fuel and pressure drops the motor will shut down . maybe you have a fuel delivery problem
  15. 9

    Yamaha 130 2 stroke height

    Moving up one hole is not that hard to try, but I do not understand what you mean you can only trin 1/4 on the gauge, but can trim 1/2 with no cavitation. seems to me if it is porpoising at 1/4 it must be going nuts at 1/2. maybe you need tabs or a tail to keep the bow down or transom wedges...
  16. 9

    Yamaha 90 2-stroke air hose?

    recirculation of liquid condensed fuel from the bottom of each cylinder's crankcase is the only thing I can think of. should be check valves involved at least one end
  17. 9

    yamaha 4 stroke cold start problem

    if the motor will not start cold, the only problem I can think of is no extra fuel is flowing. that has nothing to do with the prime start heaters ( they are not solenoids) they just close of the extra fuel when warmed up
  18. 9

    yamaha 4 stroke cold start problem

    does the needle move slowly when you put 12V to it, or fast like a solinoid being energized? if it is slow moving ,it should get the voltage from the motor battery charging system while the motor is running. if it moves fast maybe you have to push in the keyswitch or another switch to operate...
  19. 9

    Yamaha 90 2-stroke air hose?

    the only small hose coming off of an outboard that I can think of would be for a speedometer. but I have no idea how it could be blowing air out when motor is running on muffs
  20. 9

    2003 Yamaha HDPI No Start/Sputter Has Spark

    YDS would make it a lot easier to troubleshoot, and you can see what the rail pressure is doing HPDI rail pressure should be over 700, Your service manual will help a lot knowing the specs
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