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  1. 9

    1981 Suzuki DT9.9 water pump issue

    antifreeze does not boil at the same temp of plain water, so over the boiling point of water is not good. your motor is getting too hot it has cool water being pumped into it , or at least it should have plenty of cool water pumped in to keep it cool
  2. 9

    Thermostat housing hole.

    thanks, I push pole along the shallows site fishing for reds here on the Texas coastal bays. came up on a woman and her daughter walking and pulling a flat bottom boat with no motor on it some years back. when I got close enough I asked if they needed any help. about that time they picked up...
  3. 9

    Thermostat housing hole.

    Looks like wrong trailer for that boat. here are pics of my trailer while I was replacing the cross members and bunk brackets and of my 16ft boat on the trailer 4 bunk boards the 2 on the inside are 10ft long & support the boat well up front ,and the outer are 5 ft ,
  4. 9

    Thermostat housing hole.

    Wheel/tires look to big for the fenders. frame looks level, but not the boat. back end too high pushing more weight up front. if you catch any rain while trailering it will not drain out and will get heavier in the front no way to drain it unless you raise the front, so water will run to the back
  5. 9

    1981 Suzuki DT9.9 water pump issue

    use some compressed air to blow up the tell tail while running on the muffs or in a tank to see if that gets the TT to flow again
  6. 9

    96 Yamaha 115 getting overheat alarm

    thermostat controls water flow thru the motor just like on automobiles, it sits in a water cooling passage, so you should be able to see what it looks like when you pull the stat out. the other cooling passages will require heads and other plates to be removed to inspect and clean if the stat...
  7. 9

    96 Yamaha 115 getting overheat alarm

    pull the stat and place in a pot of water and heat the water while monitoring the temp and watching for when the stat opens to see if it happens in spec. when you pull the stat look to see how bad the passages look with build up
  8. 9

    F20 hard starting - fuel delivery issue?

    fix all leaks, if fuel leaks out air can be leaking into the suction side of fuel system. it is always good to post the complete motor model # to help others know what motor you are talking about
  9. 9

    96 Yamaha 115 getting overheat alarm

    thermostat or blockage in cooling channels
  10. 9

    2019 Suzuki DF90A Does lower gear oil change require new drain screw gaskets?

    I have noticed with the new gaskets , the screws need to be retorqued after a little while to make sure they do not leak
  11. 9

    Yamaha 1997 C90 Tilt/trim removal

    are you sure the bracket is not stuck to the transom itself? might loosen the other side also to see if that helps
  12. 9

    1987 Yamaha Pro V 150 Stalling

    I would think that if there is a small air leak on the suction side of the pumps it might cause a problem like you are seeing at low RPM, but at higher RPM the pumps can pump more fuel to keep up. I have read placing a clear piece of tubing in the system might show some air bubbles instead of...
  13. 9

    2006 Yamaha 90 2 stroke

    good to hear you found the problem and thanks for coming back to report what the problem was. I would think hooking up a timing light would have shown it was not firing when it was suppose to
  14. 9

    2001 4 STROKE YAMAHA 25 HP DIES WHEN GOING FROM FULL THROTTLE TO IDLE

    is it flooding, with too much fuel? does this motor have a red lever or some other device to set the prime start system to normal/open/ off? if so what position is it in
  15. 9

    Power loose at plane out

    VST not staying full while motor is at low RPM above a certain RPM the lift pumps run all of the time, low RPM it turns on and off. pressure relief /recyle valve sticking open might cause that sucking air maybe
  16. 9

    1987 Yamaha Pro V 150 Stalling

    have you checked or replaced the lift pumps? sounds like they are not keeping up at low RPM. sucking air at line or filter connections could be another cause
  17. 9

    100:1 mix ok in Yamaha 1999 3hp?

    just what I have read before, but long lay up of the motor run at 100 to 1 might let rust sneak in during that no run time
  18. 9

    06 F115 won't plane up

    not enough fuel to transition from idle to high RPM maybe. too lean to create the power to turn the prop as it should. Has anyone monitored fuel rail pressure while problem shows up. might look at having the injectors tested and cleaned too
  19. 9

    2001 Yamaha 50hp tlrz 2 stroke with prime start system starts and dies

    any way you look at it the motor should run in the automatic/normal position, your will not. time to open up the carbs and find out what is plugged up
  20. 9

    2001 Yamaha 50hp tlrz 2 stroke with prime start system starts and dies

    open is the emergency position since it provides fuel if it will not start in normal off should be the 3rd position, it turns off the extra fuel incase the needle does not shut it off when in normal and warmed up. if left in the open position the motor should run too rich. sounds like the...
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