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  1. 9

    Yamaha 90 tlr not shifting

    I hate to say it, but sounds like you are not installing and securing the cables properly
  2. 9

    Looking for the right grommet

    how are you trying tp install it? are you using any lube
  3. 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
  4. 9

    2007 yamaha 50hp loosing power

    what did you do to fix the other problem? good chance it is still part of the problem
  5. 9

    2007 yamaha 50hp loosing power

    is this the same problem you had back in Feb you called stuck in limp mode?
  6. 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...
  7. 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
  8. 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
  9. 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...
  10. 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
  11. 9

    Rodbolt, purpose of the motor mounted neutral switch 1998 Suzuki DT 150

    Can someone tell me what the motor mounted neutral shift switch on a Suzuki 1998 DT150 motor is for? What does it change or effect? The 1997 does not have it and the manual does not have anything in it about it that I have found.
  12. 9

    Rodbolt advice needed on PTT pump filter falling apart

    The trim motor on my 1999 C40TLRX is rusty, so I decided to pull the whole unit to be able to get to the motor easier to clean up and repaint. When I tried to remove the bottom large shaft/bolt that runs through the assembly it would not move so I tapped on it with a brass rod and hammer trying...
  13. 9

    Yamaha C40TLRX main jet sizes

    Well, I just got a new #115 main jet from the Yamaha shop here, that they had to order one for me just to see if I was correct on how to check the orifice size on these Yamaha jets since no one could give me any info on how to check them. I was correct in thinking that someone had drilled out...
  14. 9

    C40TLRX link and sync procedure need clarification

    I just happened to re-look at the procedure in my manual and was confused at the sequence that it stated. After adjusting the throttle timing linkage I thought that you needed to have all the butterflies completely closed and synced them at that point, but the procedure says 1. loosen the...
  15. 9

    Rodbolt,could you give an experts knowlage on prime Start System question?

    Rodbolt, Is the Prime Start System designed to draw just fumes out of the middle carb when in the normal position? Not liquid fuel? My C40TLRX will pump liquid when in open position, but in normal position I get nothing but fumes when I pull a vacuum on the line from the Prime Start cold and...
  16. 9

    Question on Yamaha Prime Start System

    For anyone that has a 3 cylinder Yamaha with the Prime Start System I have got a question or 2 for you. Mine is a C40TLRX but I am sure any others would be the same. Pull the line off the prime start system where it attaches to the intake behind the top carb and see if you can get any fuel out...
  17. 9

    C40TLRX CDI output voltage, Rodbolt how high is too high

    I have finally been able to get my hands on a peak reading voltmeter and measure the CDI output like the manual says to and the readings I get are 205v instead of the 140v at 1,500 RPM's on all three outputs. The manual says to replace the ignition coil if the the reading is beyond...
  18. 9

    C40TLRX tach output signal

    I would like to find out what kind of a signal the tach receives from this Yamaha C40TLRX motor and how it is translated to RPM. I do not have a tach but have a Fluke 87, and would like to read the RPMs for testing and trouble shooting. From what I have found out so far is it is a AC voltage...
  19. 9

    Rodbolt, motor still cutting out at WOT

    This is really getting strange. Yamaha 1999 C40TLRX still has the high speed cutout or miss, like it is dropping a cylinder at high RPMs . but when I take the cowling and silencer off of the front of the carbs it runs fine WOT, no miss or cut out. Reinstall the silencer and it cuts out a lot at...
  20. 9

    Yamaha RPM limiter question for Rodbolt

    Rodbolt or anyone else that may know the answer, How does the CDI unit on carbed Yamahas limit the RPM? ( mine is a C40TLRX) Does it start dropping a certain cylinder's spark or randomly drop spark to all cylinders. Or is there a different way that it does this? Would it feel like a high...
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