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  1. 9

    Yamaha 50 tlr prime start test

    I just had a thought, have you verified that the prime start system is getting voltage to it while the motor is running? and that the ground wire is making good contact. if no power to it it will not heat up and close off.
  2. 9

    Yamaha 50 tlr prime start test

    If the fuel pump is leaking into the crankcase, it would cause #3 cylinder to run rich. I am not sure if any other cylinders would be affected. I do not remember off hand where the pump in the prime start system gest its pulses from, but it might be #2. would not hurt to check to see if those...
  3. 9

    Yamaha 50 tlr prime start test

    Just looked and that part number is for a 40 and 50 from 95 on up. See if you can find a used one The manual for my C40TLRX does not give a spec just replace if it does not move. so maybe you need to be looking for a different problem
  4. 9

    Yamaha 50 tlr prime start test

    all I can say is, if it moves but does not close off as it should then it needs replacing if you cannot figure out a way to adjust the thing to get it to move farther. have you checked to make sure the diaphrams in the pumps are not leaking and adding extra fuel also
  5. 9

    Yamaha 50 tlr prime start test

    How long did you have it hooked up to 12V before remeasuring? you need to get a service manual for your motor, not some other motor
  6. 9

    Yahana 200hp txrr stumbles at idle

    heated sonic cleaner would be better
  7. 9

    Yahana 200hp txrr stumbles at idle

    take it to a good shop to have the carbs cleaned properly.
  8. 9

    Overheat alarm at idle... I think??

    does that mean your filter on the motor does not have the switch? or are you saying the filter with a switch just does not have water in it? the switch could go bad if you have that, giving a false indication.
  9. 9

    Overheat alarm at idle... I think??

    Do not pull the float out until you drain the tank of oil if you pull the float and screen out you may let stuff get by the screen that could plug up the internal passages. also you will need to make sure you get the screen back in and sealed properly before add oil back in. have you checked...
  10. 9

    Yahana 200hp txrr stumbles at idle

    possible a lean sneeze on one cylinder maybe. did you do the link and sync after reinstalling the carbs after cleaning
  11. 9

    2005 Yamaha F225 TXRD rubber grommet replacement

    I would think following the wires from the T&T switches to the relay would show you where that is located or follow the wires from the T&T motor to the relay. or your service manual should give you some info
  12. 9

    2008 90TRL need more power!

    maybe the prop was repitched, so it is not what it was originally from the factory. Low compression could be the gauge you used is not correct also use a timing light to see if the timing is in spec and advancing as it should only way I know of to see for sure if it is a motor problem is to...
  13. 9

    '99 115 Yamaha choke butterfly plates are different

    why do you think PI is 3.44 instead of 3.141592654?
  14. 9

    '99 115 Yamaha choke butterfly plates are different

    It is hard to keep up with if they keep changing things around but I think your area of 1/2" is one decimal place off 0.19635
  15. 9

    Syncing carbs?

    you should have looked before buying the tool
  16. 9

    Syncing carbs?

    I would imagine once you set all throttle plates together with them completely closed they are synced. the same amount of air will be flowing into each cylinder where even you place the throttle. And if the carbs are properly clean the jets should allow the same amount of fuel to be sucked in...
  17. 9

    Syncing carbs?

    as was posted already a Yamaha service manual will have the link and sync procedure, and it does not talk about a sync tool. just make sure all carb throttle plates are linked together with the plates completely closed not touching the idle speed screws. and timing is also part of the procedure
  18. 9

    1988 30hp yamaha breaking dowr

    How do you know it is not overheating? do you have gauges and a warning alarm that works, that you have tested to make sure? Is this a oil injected motor or a premix? since you think timing is a problem, have you put a timing light on this motor to see if timing is in spec but changes when the...
  19. 9

    1988 30hp yamaha breaking dowr

    overheating maybe. does this rig have an alarm that functions?
  20. 9

    1999 Yamaha 115 idle adjustment

    ....
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