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  1. 9

    2001 F115 ISC idle speed control valve stickig

    are you talking about the rail pressure dropping to 10psi? if so either the VST is running out of fuel so the pump in there cannot pump anymore, the VST filter/screen is plugged up, or the pump is not running. does pumping the primer bulb help any to keep it running? if it does not then it...
  2. 9

    Suzuki 75hp

    that is correct, but some require putting into reverse instead of neutral so you can access the shaft nut to turn it not sure about a Suzuki
  3. 9

    2001 F115 ISC idle speed control valve stickig

    what you see on YDS is the request, it does not know if the ISC moves or not. do you hear the ISC rattle, resetting to 100% for next start up when you turn off the motor? if you hear it rattle then it is moving Yamaha recommends replacing instead of trying to clean it. it can overheat the...
  4. 9

    Suzuki df 15 4 stroke water leak?

    all leak some at the drive shaft, that is not a tight fit and there is no seal there but I do not think the pipe should be leaking set in that grommet
  5. 9

    Adding a Temp gauge

    you are just one person that feels that way about wanting one, that does not mean every boat and motor has to be sold with one. you want one, install it and go about your day
  6. 9

    2020 Yamaha 115 vmax cooling issue

    buy the Yamaha water pump kit, it is just a few dollars more then the impellor by itself and you get the new wear plat and cup and all o rings and gaskets needed. As I said before, your impeller is toasted. deformed and cracked it is not seating properly into the cup anymore. the wear plate...
  7. 9

    2020 Yamaha 115 vmax cooling issue

    looks like you found the problem. I would be looking at the pump housing also for signs of melting. kits contain the cup and wear plat along with other good part not just the impeller, but do not have the housing included. was that a Yamaha pump Kit or an aftermarket one you installed 6 months...
  8. 9

    2020 Yamaha 115 vmax cooling issue

    check the pump. something could have happened to the pump in those 6 months
  9. 9

    Yam 85 Losing Power.-

    sounds like you think it is OK to keep running a motor that has a problem even after the motor tells you it has a problem. not a good practice for any kind or type of motor. stop, find out what that problem is, and fix it before continuing. if low oil add oil if overheat let it cool off make...
  10. 9

    1995 Yamaha 2 stroke #5msht mix ratio

    oil injected motors run a lot less than 100 to 1 at idle and letting a motor sit for long lay ups when running 100 to 1 and not fogging them to put away might run into rust in bad places
  11. 9

    Yam 85 Losing Power.-

    all of the yams I have played with , had high temp buzzer and RPM reduction to warn the operator there was a problem. Is this motor remote controlled? not sure if tiller motors have buzzers or lights if there is no gauges. when RPM reduction happens or the buzzer or light indicating a problem...
  12. 9

    Suzuki ignition wiring help..

    yes using the proper manual would be a good idea You could use a meter to help figure out where you have power and where it is not
  13. 9

    Adding a Temp gauge

    I know copper and aluminum are not what you want to touch each other, since brass contains copper, I am not sure it is a good thing to use
  14. 9

    Flushing 2019 115hp Yamaha 4 stroke

    those pesky engineers, they have to change things up just to show they can. at least I was right on some of the older motors
  15. 9

    Flushing 2019 115hp Yamaha 4 stroke

    well after looking at that above, I always thought the stats controlled the water flow to the heads for cooling I must have been wrong
  16. 9

    4Cyl 2Strk lower cylinder won’t fire. Has spark but low compression.

    and why would it only effect just one cylinder. that makes no sense at all
  17. 9

    2003 yamaha 50 tlrb 2 stroke starter spins slowly sometimes

    Starter relay/solenoid might be a problem. bad/burned contacts inside not making good connection sometimes
  18. 9

    4Cyl 2Strk lower cylinder won’t fire. Has spark but low compression.

    low oil level in tank on motor is the only part of oil system to set the alarm and RPM reduction. But I do not believe only one cylinder would be affected if it was oil level problem Not sure, but think it does a random spark interruption to limit RPMs
  19. 9

    4Cyl 2Strk lower cylinder won’t fire. Has spark but low compression.

    also the lower crank seal may be letting air in leaning out the lowest cylinder Not sure how many fuel pumps this thing has, or what crank case they are tied to. but if a pump leaks fuel into a crankcase, that cylinder will be too rich and not fire/burn the fuel properly
  20. 9

    2007 Yamaha 200 four stroke what fluid goes in the trim/tilt

    Not sure about your motor, but My secvice manual for my C40TLRX calls for ATF Dexiron II
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