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  1. W

    Tohatsu ECU replacement

    The wire checked at the ecu body also no signal. Dang pricey part. Are there any compatible motors or ecu's which may work here ?
  2. W

    Tohatsu ECU replacement

    Thank you, good thought. The motor is not here but when I can get to it I will and post what happens next
  3. W

    Tohatsu ECU replacement

    Just a shot in the dark here but lets say the wire is good and there is no juice to the coil does that indicate the ECU is definitly bad ?
  4. W

    Tohatsu ECU replacement

    We can not get the number 2 cylinder to fire. On the #2 coil there is no input. The coils have been switched but still no juice. I was not there when this was done but told the wire going to the #2 coil has no power at all. Any suggestions. Could this be stuck in safe mode ? Or something similar...
  5. W

    Tohatsu ECU replacement

    I have a Tohatsu 90 nHP model # MD90C2 3FW , Serial #034700AX. I am told the ECU needs to be replaced. When the ECU is replaced does it need to be (not sure of the term here) flashed or set to work with my injectors? Or can I expect it to be plug and play ? I am obviously not familiar with...
  6. W

    Is Vinegar Good for Desalinating Purposes ?

    I realize the post is about internal passages and believe what is posted pretty much. I will add this take it for what it is worth. When disassembling a salty motor I usually throw the screws or bolts into a can of vinegar while working on the motor. By the time reassembly comes I open the can...
  7. W

    Is a 2010 Tohatsu 90 TLDI the same as a Mercury of any type ?

    I am not familiar with the Tohatsu TLDI technology nor the above mentioned motor. I have heard of the Mercury Optimax and the EFI but again am not familiar with them. Then there is the BRP Etec another fuel injected two stroke. I have read a few articles on these engines but not comparisons in...
  8. W

    Mercury 2018 2.5 HP 4 stroke fuel pump question

    When I get back to it I will take some pics and measurements then post them. I look forward to your advice. Thanks for the reply.
  9. W

    Mercury 2018 2.5 HP 4 stroke fuel pump question

    I may have mistaken the year but the motor is an EPA model OR448033 and up. The EPA model seems to be the only one with a fuel pump. The other models being gravity flow from the internally mounted fuel tank.
  10. W

    Mercury 2018 2.5 HP 4 stroke fuel pump question

    Mercury part number 8M0072277. Does anyone know if this pump can be rebuilt ? I see a new one runs around $80.00. I took mine apart and can see there is a pinhole in the diaphram. If there is a kit available it is an easy rebuild. The motor seems to run fine without it with just a gravity flow...
  11. W

    18 HP Tohatsu 2004 18B Link rod removal on carburetor

    Thank you both for your replies. I believe the passages were clogged or at least restricted. I did the long soak cleaning, blew it out and sent monofiliment through the passages as much as I could and put it back together. I soaked it in such a way that the boot remained suspended out of the...
  12. W

    18 HP Tohatsu 2004 18B Link rod removal on carburetor

    Just saw your reply Sea Rider. Worked til dark and then some. Its a bit too late to get pictures but if curiousity is killing , the part # is 3R3033120 it is number 1-25, listed within the parts page for the carburetor of this 2004 Tohatsu MFS18B2. The rubber boot is shown along with the link...
  13. W

    18 HP Tohatsu 2004 18B Link rod removal on carburetor

    I aquired this motor and would like to get it running. I removed the carburetor and found that it was certainly in need of a long soak cleaning. I will check the auto start mechanism as I have read several post on it. For now my issue is how to remove the rubber boot which covers the link rod...
  14. W

    1998 Mercury elpto on stand slow cranking

    Check your solonoid and other ground wires. If your solonoid is not grounded well it will not give a hard solid contact ansd your starter will seem bad.
  15. W

    1987 Yamaha 25 hp 2 stroke Oil Seal Cover

    This is part number 689 45344 00 94. Before I start to pry and possbly destroy this cover does any person have suggestions for its removal. ? Does the driveshaft need to be removed ? The seals are leaking so that there is air leaking out with about 8 lbs of pressure and slight water intrusion. I...
  16. W

    Yamaha 175 ETXG Compression

    My compression on this motor is 90 pounds on 4 cylinders and about 87 on the other two. It has a professional repaint and looks good. Its got quite a few hours on it. I put it aside a while back. A freinf of mine ask if I can get it goig again for him. It has spark on all six, the compression is...
  17. W

    175 HP Heavy. Has anyone run or started one on a hoist.

    I have run out of stands and tanks. I acquired an 80's model 2 stroke 175 Yamaha. Today I went to the metal yard and picked up a bunch of 2" x 2" x 3/16" tubing to extend my boom and a bunch of 1/4" thick L metal to be used as outriggers for my cherry picker. I want to be certain of weight...
  18. W

    Gear Housing Nut Removal 1988 35 HP Mercury

    I have some work to do in my lower unit and am temporarily stopped by the gear housing nut. I have read that breaking the nut (made of Nylon) is one option. The Mercury tool part # 91 91947 is a bit expensive. I have no problem breaking it out as it is only a $10.00 part but then of course would...
  19. W

    2007 Tohatsu 3.5 HP 4 stroke. No spark.

    Thanks for looking. Is there a way to test the igniter on this motor.. Ignition system is comprised of the flywheel and igniter. I dont have a spare to switch out. I am going to reinstall it today, scraping away some paint to be certain all is grounded. I was thinking there must be an Ohm's test...
  20. W

    2006 Mercury 9.9 M4 1F10201FK Oil pressure switch

    Can or does this switch activate a guardian mode on this motor.? Can a bad switchbox keep the oil pressure light illuminated ? When started the light will illuminate for the 5 or so seconds then go off. It then comes back on and will stay on whether idling or throttled up.. I did check that...
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