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  1. 9

    Yamaha 130 hp 20 " shaft mounting height

    from the pics you posted you motor will not be right next to the bottom of the boat. what am I missing?
  2. 9

    Yamaha water jacket corrosion

    looks like plenty of meat left on all sealing surfaces to me. I would remove as much build up to make sure cooling passages are clear and put it back together with new gaskets
  3. 9

    HPDI 150 won't stay running

    if the rail pressure is in spec as the motor dies, I do not see a fuel supply as a problem. but injectors all firing properly would be, along with spark and timing. just reread the original post and it says it only idles for 15 - 20 seconds. I believe I have read where those motors do not run...
  4. 9

    Yamaha 130 hp 20 " shaft mounting height

    why did OMC go out of business if they were so good?
  5. 9

    HPDI 150 won't stay running

    is the rail pressure in spec? I have no idea if what you posted is in spec or not
  6. 9

    rpm gauge

    I believe they would be green wires on a Yamaha
  7. 9

    Oil Injection Pump

    Just remove the drive shaft for the pump , from what I read with no oil being pumped no lube ,which will cause a failure possibly damaging the crank shaft
  8. 9

    Oil Injection Pump

    I count 35 or 36 years old 4 years shy of 40
  9. 9

    1987 130 v4

    look to see if that old motor has a push pull shift shaft or a twist like the newer ones. if a push pull, find out where the joining nut is and how to get to it. some required to be in reverse to be able to undo it
  10. 9

    yamaha fourstroke crank bearings

    what I read was soda can melt, my brain must not be working well.
  11. 9

    yamaha fourstroke crank bearings

    what kind of soda are you speaking of?
  12. 9

    Suzuki 150 overheating

    some motors do not like muffs, cannot get enough water. or stat stuck closed or poppit valve stuck open if that motor has one
  13. 9

    1991 DT100 Crankcase Puncture

    compression test would tell of all pistons and rings are still intact and moving the way they should. or just take it apart to see what happened.
  14. 9

    1984 yamaha 150 2stroke

    yes the pulser coils are under the flywheel along with the charge coils ( that charge the capacitors in the CDI) and lighting coils (that power lighting/and battery charging and other 12 volts needed on the motor)
  15. 9

    1984 yamaha 150 2stroke

    mercury calls them triggers, Yamaha calls them pulsers. if the CDI does not get the signals to fire each plugs, they will not fire. so maybe you should test to see if the CDI is getting the signals
  16. 9

    1984 yamaha 150 2stroke

    I know nothing about a motor that old, but the service manual for the motor should give testing procedures. Peak voltage readings into and out of the CDI should give you some direction to be looking. how many pulser coils does this old motor have telling the CDI when to fire the plugs? my...
  17. 9

    Suzuki DF60A Throttle body.. Is this fully open when in WOT???

    Sorry I did not pay attention to it being a new boat and motor, but I would still be contacting the ones that sold it to you to see what they say this rig should be able to do.
  18. 9

    Suzuki DF60A Throttle body.. Is this fully open when in WOT???

    I would test what you can to make sure the motor is hitting well on all cylinders. the basics Good Compression and spark, and proper timing and advancement should be easy to test fuel rail pressure also if all is good then maybe cleaning and testing the injectors
  19. 9

    Suzuki DF60A Throttle body.. Is this fully open when in WOT???

    I thought it was 200RPM per " of prop pitch change. he said the boat is rated for a 40 to 60 hp motor, so it should not be overloaded if the motor is running properly. the PB I posted for a 60HP Yamaha is kind of confusing sence it ways 60 but also says 70, but even on that 16' it called for a...
  20. 9

    yamaha 2013 waverunner

    glad you got it fixed, and thanks for posting what the problem was. yes rail pressure is a very important test of injected motors.
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