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  1. 9

    Yams/Suzukis and Lithiums

    I have heard charging them off of an outboard is a problem. not sure I want something that can burst in to flames and impossible to put out a good thing
  2. 9

    Trim/tilt system stopped working; can here clicking from the relays.

    try shorting around the T&T relay to get the motor to move, (disconnect the main wires at the relay) to the T&T motor and jumper 12 V + & - to them from a battery with jumper cables if that works the T&T motor is still good and you just need to replace the relay hitting that motor with a...
  3. 9

    slight gas in oil 2009 yamaha 4 stroke

    did you find what prop was used on a boat rigged like yours in the bulletins? did it have a different prop than what you have? did you change prop? did your porpising get taken care of?
  4. 9

    97 Outboard C90 Water on Plugs

    I am confused on what a spark arrester is on a premix 2 stroke motor
  5. 9

    slight gas in oil 2009 yamaha 4 stroke

    do a search for Yamaha performance bulletins and find a boat and motor like yours to see what they used
  6. 9

    Power Trim

    hook a voltmeter to the incoming and out going terminals of the T&T repay to see what kind of voltage is getting to the T&T motor, would not hurt to check the voltage is on the battery itself to compare to that the T&T relay and motor is getting. maybe just burnt contacts in the TT&T relay not...
  7. 9

    97 Outboard C90 Water on Plugs

    do a leak down test with compressed air and see where air leaks to. but if all 3 have water signs I would guess the exhaust plate corroded thru. time to open it up and look
  8. 9

    97 Outboard C90 Water on Plugs

    are we supposed to guess what the compression #s were?
  9. 9

    2003 Yamaha 50 hp 2 stroke

    I guess your flux capacitor in the pic is a plugged-up pilot jet on #1 carb
  10. 9

    Will not pee

    why worry about that. check to see if it is stuck open I just reread your other post, I have no idea how air would be coming out of the pisser, maybe it is exhaust gases from a blown head gasket letting exhaust into the cooling passages
  11. 9

    Will not pee

    if the PRV is stuck open it will dump too much water to fill the block at low RPM
  12. 9

    Will not pee

    exactly what would block the water from coming out of the stat opening with it out? if water does not get up to the top of the head/block it is ot pumping properly
  13. 9

    Will not pee

    I thought the same thing, but he said he was not getting water to the stat, so blocked tell tail would not cause that
  14. 9

    Will not pee

    why was it replaced? did you have a overheat problem? if the housing has a problem it needs to replaced also
  15. 9

    Will not pee

    drop it into the water and try it, sometimes they have trouble on a hose. did you use a Yamaha water pump kit or after market?
  16. 9

    2003 Yamaha 50 hp 2 stroke

    have you put a timing light on the motor to see exactly what the idle timing is when cold and after the motor has warmed up? also when at high RPM. good compression, good spark at the correct time, and proper fuel to air. test what you can and then chase the fuel to air my 1999 C40 had a bad...
  17. 9

    2003 Yamaha 50 hp 2 stroke

    did the new middle carb come with a new prime start assembly?
  18. 9

    Suzuki 2007 DF115 Cranks But Won't Fire

    30 hours in 17 years is not good for a motor. I am not sure what 100% gas is now a days. seems that motor has spent it's life sitting and not having much fresh fuel fed to it. good luck with it from now on, but you need to run it more often
  19. 9

    Cant find the year of my mot

    1987 https://www.boats.net/catalog/yamaha/outboard/1987/40hp/40sh?msclkid=ea86595ff8841b3160a83fb4247bc583&utm_source=bing&utm_medium=cpc&utm_campaign=TNT_Text%20-%20DSA%20-%20OEM%20Parts&utm_term=yamaha&utm_content=Yamaha
  20. 9

    Cant find the year of my mot

    what country are you and your motor in? can you post that letters are after the 40S
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