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  1. dwco5051

    Early 90 hp Yamaha tachometer wiring diagram

    Should work as it is since your Merc is a 12 pulse. Here is a listing on what the output is for various motors. https://fariabeede.com/site_manuals/IS0012_A.pdf
  2. dwco5051

    Early 90 hp Yamaha tachometer wiring diagram

    No. The jumper bar between b and (12 or 4) is to set the number of pulses expected from the alternator. the two in the top-center are trigger (usually marked with a S for signal) and positive power usually sent from the ignition key switch. The G is negative from the battery. The power from...
  3. dwco5051

    Early 90 hp Yamaha tachometer wiring diagram

    Looks to me like the jumper is from b to 12 pole, it would be switched over for a 4 pole. That leave the two in the top center for +12v and the other for signal. Hook the G to -12v and touch one of the top two to +12v. If the needle jumps to zero that is the power. If not try the other. The...
  4. dwco5051

    Fueld sender charred up

    The pink small wire goes to the fuel gauge. The sender housing has a black ground. If you trace the wires the other black one my go to the filler fitting on the hull to dissipate a possible static charge spark during filling. If they were clean tight connections I doubt they were responsible...
  5. dwco5051

    Yamaha F350 2013 Excessive Exhaust and black smoke puff on startup

    I know nothing about your motor but if I had one of my diesels trucks acting like that I would say either it is burning soft coal for fuel or it is a bad injector.
  6. dwco5051

    1978 85HP Johnson - trim/tilt does nothing

    Last one I replaced was on a 175 a few years ago. Fairly simple to remove since it was inside my shop and I was able to put a strap on the motor from a rafter to tilt it up out of the way to remove the t/t unit.
  7. dwco5051

    confused on year

    If you go to Tohatsu's web site you can enter your model and serial number and they will email you back withing a day telling you exactly when it was built.
  8. dwco5051

    Just thought I'd share a nice photo.

    We had our first today here in the center of Pennsylvania. My wife had been looking for them for a couple of days now and marks the calendar every year when she expects them and they were right in the week she had marked.
  9. dwco5051

    100 inch Beam

    Overall, which ever is the widest.
  10. dwco5051

    what kind of boat is this? unreadable mfg plate

    It looks like one of the typical "bass boats" from the early 1970's when lots of small boat makers tried to get into the business. If it was built after late 1972 it should have a Hull Identification Number on the transom that will show the builder and year. Many companies copied other makers...
  11. dwco5051

    Dock lighting and piling questions

    My daughter put cone caps on a few years back to discourage birds. She told me later that the same birds just sat on her boats and pooped.
  12. dwco5051

    Helm/console wire diagram

    Before I would get too deep into the wiring I would suggest a couple of quick tests on the ignition system. First check the voltage on the hot side of the coil while someone cranks over the engine. A weak battery, starter problem, or engine problem may be dropping the voltage enough to cause a...
  13. dwco5051

    Sell Electronics With Boat or Separately?

    Older electronics (possibly obsolete) will not fetch a lot of money. For a first time boat buyer who does not have a shelf of older stuff like many of us do it could sweeten the pot to make the deal for the price you want. I would probably keep the handheld stuff and sell the fish finder with...
  14. dwco5051

    Replace kill switch or bypass?

    If you mean the on position is when the motor is running and the off position is when the lanyard is pulled there is nothing wrong with the kill switch. Connect it back up and search elsewhere to find your problem.
  15. dwco5051

    Replace kill switch or bypass?

    Don't bypass or jump the switch. If you have to run the boat without it and suspect the switch is bad disconnect the wire that comes from the motor and tape it off. That switch has to be open to run. When the cord is removed it closes the contacts and grounds out the ignition.
  16. dwco5051

    Random

    Depends on the accuracy of the measuring devices to meter out the quantities of the ingredients. Lets not forget about the importance of significant figures.
  17. dwco5051

    1996 Nissan 2.5hp won't rev

    I am willing to bet that at least half the people that read this sat back and smiled as they remembered doing something similar.
  18. dwco5051

    Oil fired boiler....Is the block replaceable?

    What size is your boiler? How old is it? I have been out of that business for years but I do know I can get a whole new average house size unit for less than $2500. It will take more in labor normally to replace just the bad section than a whole new unit. If less than 10 years old call Weil...
  19. dwco5051

    Need advice about a home water well

    Like this
  20. dwco5051

    Need advice about a home water well

    There should be a check valve where your well feeds the pressure tank. You would have to tap the hose bib off the house side of the check valve. If you tapped at the well head as soon as you opened the tap the water pressure in the feed from the well would drop to nothing and the pressure...
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