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  1. 9

    1994 Yamaha 4hp 2-stroke tuning.

    a motor that has set up for long periods of time usually end up with carb problems. hard to drain all fuel out of carbs, pump, and lines so when the fuel evaporates it leaves residue that plugs things up. my guess would be carb needs proper cleaning and setting
  2. 9

    What is the normal output voltage of the Yahama 8hp rectifier ?

    he has not been here since he posted that back in 2013 no need to drag up old threads
  3. 9

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

    that red switch has 3 positions normal, open, and off sounds like the carbs need a good cleaning
  4. 9

    2006 90hp yamaha started running rough after 1/4 mile from dock.

    so is it still having a problem after almost 5 years
  5. 9

    Thermostat housing hole.

    if that is a 3 cylinder motor then it is not a waste spark system so each plug should fire just once
  6. 9

    Thermostat housing hole.

    some of those inductive tachs have a problem with interference from the other spark plug wires . also sounds like a lean sneeze happening that causes the motor to kick hard and die
  7. 9

    1983 Suzuki DT-60 Outboard Not Running Well

    I would check compression, spark, and timing to make sure it is still in spec. something has changed that should not have without someone moving things. or an idle circuit in carb has plugged up or a vacuum leak somewhere.
  8. 9

    Yamaha 90 tlr not shifting

    can you explain what you meant by no rev?. I thought it meant the motor would not throttle up in RPM never mind I just realized it was no reverse, my mistake. many years ago I came across a shift cable that had slack in the movement of the inner cable. I have no idea how that could happen...
  9. 9

    Yamaha 90 tlr not shifting

    apparently something is coming loose to cause the motor to not shift and operate the throttle as you move the controls. how else could that happen?
  10. 9

    Yamaha 90 tlr not shifting

    only you can look to see what is not staying in place
  11. 9

    Yamaha 90 tlr not shifting

    I hate to say it, but sounds like you are not installing and securing the cables properly
  12. 9

    Looking for the right grommet

    how are you trying tp install it? are you using any lube
  13. 9

    2007 yamaha 50hp loosing power

    since it was a spark problem before, I would monitor spark when problem shows up to see if all 3 plugs are getting spark. if not spark look else where. if it is a spark problem, see what input and out put of CDI is doing. by the way I do not see how loose plug boots would cause that kind of problem
  14. 9

    2007 yamaha 50hp loosing power

    what did you do to fix the other problem? good chance it is still part of the problem
  15. 9

    2007 yamaha 50hp loosing power

    is this the same problem you had back in Feb you called stuck in limp mode?
  16. 9

    2007 Yamaha 50hp 2stroke stuck in limp mode

    you need to make sure all 3 cylinders are sparking while problem is happening. inductive timing light attached to the plug wires one at a time will indicate if the spark stays, it will also indicate if the timing is advancing properly and in spec. if that boat has alarms and they work(test...
  17. 9

    G3 analog tach reading high

    I would flip the switches that set the tach for the proper motor it is attached to. could be there is a bad connection in those connections inside the tach. flipping them back and forth may help
  18. 9

    Lack of RPMs Yamaha 40HP 2 Stroke

    seems the other tread states the jet lower will not allow the RPMs to reach 5500 due to the load put on the motor. do you have proof that those 40hp power heads will run 5500 with the jet lower on it? if so post up what you have
  19. 9

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

    prime start system is not a choke. but like you said in normal it should add extra fuel when motor is cold and then close off the extra fuel as the motor warms up. if it will only run properly in the open position, that bypasses the thermal unit and dumps fuel as long as you have the red lever...
  20. 9

    how to start f100 without controls

    Re: how to start f100 without controls was the harness you tried a 10 pin or a 7 pin? Is your motor a 10 pin? Should be able to find the white wire in the 10 pin connector ti rig up a kill connection to ground
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