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  1. 9

    2007 3.3l 250hp starting at 3000+ rpm

    I believe most of injected motors have Idle speed control valve that resets to 100% at shutdown to be ready for the next start. it should rapidly drop idle RPM once started if that control valve works as it should and there are no other places it is sucking in air
  2. 9

    2007 3.3l 250hp starting at 3000+ rpm

    I guess these readings are not while the motor was running. do they change when the motor is running?
  3. 9

    Primer bulb issue

    what does that mean? does the electric pump keep running as long as the key is in the on position maybe? I would not think that is what is suppose to happen, maybe it is sucking air instead of liquid fuel. but I know nothing about that old motor
  4. 9

    Primer bulb issue

    if pumping the bulb helps, I would be looking at the 3 fuel pumps
  5. 9

    Suzuki Kill Switch Issue

    even if the switches are working properly, the wiring back to the controller could be grounded in the harness somewhere
  6. 9

    Rotate Impeller on Occasion

    fire the motor up with water to the pump once a month or even more would be a good idea to lube and exercise everything
  7. 9

    1990 yamaha 250 2 stroke seapro 2

    L250 TXRS is a 1994 wiring will need to be visually checked , no way we can even guess what someone did to cross up the wiring
  8. 9

    1990 250 2 stroke sea pro 2

    looks like that is the TT and it is plugged up. maybe that ball thing someone rigged up should be swung over covering the hole to keep insects from going in the hole building nests and plugging the hole up. someone forgot to move it over during storage. just a guess
  9. 9

    2006 DF115 Stuck valves?

    if the pistons did not hit all of the valves to bend them, then it could be the cam timing has jumped and did not harm the valves. just need to get it back into correct timing
  10. 9

    2006 DF115 Stuck valves?

    good news so far. did cylinder walls look OK now pull the valve covers and check valve clearances, maybe too tight . or if bent too loose., I cannot think of much that would cause all cylinders to have low compression. if valves are good, all rings stuck maybe that one 5375 pic bottom right...
  11. 9

    2006 DF115 Stuck valves?

    bore scope would be a good tool to look in the cylinders. Should see if pistons hit the valves
  12. 9

    2006 DF115 Stuck valves?

    have you looked into the cylinders when you had the plugs out?
  13. 9

    Interchangeable lower units??

    running shallow with motor jacked up would be my guess
  14. 9

    2008 F250TXR code 72?

    if there was metal in passages there is a good chance it got into the bearings and oil pump and maybe lots of other places causing damage to them. I do not believe all the oil flows thru the filter before heading on to other parts of motor. but I could be wrong good luck
  15. 9

    2008 F250TXR code 72?

    Not sure what the oil pressure should be reading at certain RPMs, might be too high or too low for the RPM the motor is running. but I would be worried about not having high enough pressure since you lost a bearing before. what bearing was it? and what kind of failure did it have?
  16. 9

    2008 F250 no fire on port side HELP PLEASE

    he asked how
  17. 9

    2008 F250 no fire on port side HELP PLEASE

    then you need to be sure you have good spark at the proper time on all cylinders proper fuel to air is hard to test I am sure compression would say some about the valve timing
  18. 9

    2008 F250 no fire on port side HELP PLEASE

    good compression, good spark at the correct time, and the proper amount of fuel to air is necessary to burn properly, testing it all is the only way to know for sure, sounds like does not cut it
  19. 9

    2018 Yamaha 40 HP that dies after about 20 minutes

    No sensors that will kill the motor. have you tried pumping the primer bulb to see if carbs or VST(if injected) need more fuel? as soon as it dies turn the key off and drain the VST of carb bowls to see if there is still plenty of fuel in them. have you tried loosening the cap to see if a...
  20. 9

    DT50 Suzuki 2 stroke.

    sounds like it is running low on fuel in the carb bowls . not enough fuel to keep up with the high RPM fuel burn . have you tried pumping the primer bulb while the problem is happening to see it that helps? maybe fuel weak pump, restriction in filter or line, or sucking in air at a connection
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